diff --git a/.github/workflows/ads-client-tests.yaml b/.github/workflows/ads-client-tests.yaml
new file mode 100644
index 0000000000..aaf9af29b8
--- /dev/null
+++ b/.github/workflows/ads-client-tests.yaml
@@ -0,0 +1,28 @@
+name: Ads Client Tests
+
+on:
+  push:
+    branches: [ main ]
+    paths:
+      - 'components/ads-client/**'
+  pull_request:
+    branches: [ main ]
+    paths:
+      - 'components/ads-client/**'
+
+  workflow_dispatch:
+
+jobs:
+  integration-tests:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: 'recursive'
+      - name: Install Rust
+        run: |
+          curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
+          source $HOME/.cargo/env
+          rustup toolchain install
+      - name: Run ads-client integration tests against MARS staging
+        run: cargo test -p ads-client --test integration_test -- --ignored
diff --git a/Cargo.lock b/Cargo.lock
index 4e0d6b2cd6..dcb2571c87 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -24,6 +24,7 @@ dependencies = [
  "chrono",
  "context_id",
  "error-support",
+ "jsonschema",
  "mockall",
  "mockito",
  "once_cell",
@@ -38,6 +39,7 @@ dependencies = [
  "uuid",
  "viaduct",
  "viaduct-dev",
+ "viaduct-hyper",
 ]
 
 [[package]]
@@ -51,6 +53,20 @@ dependencies = [
  "cpufeatures",
 ]
 
+[[package]]
+name = "ahash"
+version = "0.8.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5a15f179cd60c4584b8a8c596927aadc462e27f2ca70c04e0071964a73ba7a75"
+dependencies = [
+ "cfg-if",
+ "getrandom 0.3.4",
+ "once_cell",
+ "serde",
+ "version_check",
+ "zerocopy",
+]
+
 [[package]]
 name = "aho-corasick"
 version = "1.0.5"
@@ -60,6 +76,12 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "allocator-api2"
+version = "0.2.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "683d7910e743518b0e34f1186f92494becacb047c7b6bf616c96772180fef923"
+
 [[package]]
 name = "android-tzdata"
 version = "0.1.1"
@@ -183,6 +205,12 @@ dependencies = [
  "syn 2.0.106",
 ]
 
+[[package]]
+name = "atomic-waker"
+version = "1.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1505bd5d3d116872e7271a6d4e16d81d0c8570876c8de68093a09ac269d8aac0"
+
 [[package]]
 name = "autocfg"
 version = "1.1.0"
@@ -213,6 +241,28 @@ dependencies = [
  "url",
 ]
 
+[[package]]
+name = "aws-lc-rs"
+version = "1.16.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "94bffc006df10ac2a68c83692d734a465f8ee6c5b384d8545a636f81d858f4bf"
+dependencies = [
+ "aws-lc-sys",
+ "zeroize",
+]
+
+[[package]]
+name = "aws-lc-sys"
+version = "0.38.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4321e568ed89bb5a7d291a7f37997c2c0df89809d7b6d12062c81ddb54aa782e"
+dependencies = [
+ "cc",
+ "cmake",
+ "dunce",
+ "fs_extra",
+]
+
 [[package]]
 name = "axum"
 version = "0.6.19"
@@ -224,9 +274,9 @@ dependencies = [
  "bitflags 1.3.2",
  "bytes",
  "futures-util",
- "http",
- "http-body",
- "hyper",
+ "http 0.2.9",
+ "http-body 0.4.5",
+ "hyper 0.14.27",
  "itoa",
  "matchit",
  "memchr",
@@ -238,9 +288,9 @@ dependencies = [
  "serde_json",
  "serde_path_to_error",
  "serde_urlencoded",
- "sync_wrapper",
+ "sync_wrapper 0.1.2",
  "tokio",
- "tower",
+ "tower 0.4.13",
  "tower-layer",
  "tower-service",
 ]
@@ -254,8 +304,8 @@ dependencies = [
  "async-trait",
  "bytes",
  "futures-util",
- "http",
- "http-body",
+ "http 0.2.9",
+ "http-body 0.4.5",
  "mime",
  "rustversion",
  "tower-layer",
@@ -328,7 +378,7 @@ version = "0.72.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4f72209734318d0b619a5e0f5129918b848c416e122a3c4ce054e03cb87b726f"
 dependencies = [
- "bitflags 2.8.0",
+ "bitflags 2.11.0",
  "cexpr",
  "clang-sys",
  "itertools 0.13.0",
@@ -340,6 +390,21 @@ dependencies = [
  "syn 2.0.106",
 ]
 
+[[package]]
+name = "bit-set"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "08807e080ed7f9d5433fa9b275196cfc35414f66a0c79d864dc51a0d825231a3"
+dependencies = [
+ "bit-vec",
+]
+
+[[package]]
+name = "bit-vec"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5e764a1d40d510daf35e07be9eb06e75770908c27d411ee6c92109c9840eaaf7"
+
 [[package]]
 name = "bitflags"
 version = "1.3.2"
@@ -348,11 +413,11 @@ checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
 [[package]]
 name = "bitflags"
-version = "2.8.0"
+version = "2.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8f68f53c83ab957f72c32642f3868eec03eb974d1fb82e453128456482613d36"
+checksum = "843867be96c8daad0d758b57df9392b6d8d271134fce549de6ce169ff98a92af"
 dependencies = [
- "serde",
+ "serde_core",
 ]
 
 [[package]]
@@ -370,12 +435,24 @@ dependencies = [
  "generic-array",
 ]
 
+[[package]]
+name = "borrow-or-share"
+version = "0.2.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dc0b364ead1874514c8c2855ab558056ebfeb775653e7ae45ff72f28f8f3166c"
+
 [[package]]
 name = "bumpalo"
 version = "3.16.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "79296716171880943b8470b5f8d03aa55eb2e645a4874bdbb28adb49162e012c"
 
+[[package]]
+name = "bytecount"
+version = "0.6.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "175812e0be2bccb6abe50bb8d566126198344f707e304f45c648fd8f2cc0365e"
+
 [[package]]
 name = "byteorder"
 version = "1.4.3"
@@ -474,15 +551,22 @@ checksum = "37b2a672a2cb129a2e41c10b1224bb368f9f37a2b16b612598138befd7b37eb5"
 
 [[package]]
 name = "cc"
-version = "1.2.10"
+version = "1.2.56"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "13208fcbb66eaeffe09b99fffbe1af420f00a7b35aa99ad683dfc1aa76145229"
+checksum = "aebf35691d1bfb0ac386a69bac2fde4dd276fb618cf8bf4f5318fe285e821bb2"
 dependencies = [
+ "find-msvc-tools",
  "jobserver",
  "libc",
  "shlex",
 ]
 
+[[package]]
+name = "cesu8"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6d43a04d8753f35258c91f8ec639f792891f748a1edbd759cf1dcea3382ad83c"
+
 [[package]]
 name = "cexpr"
 version = "0.6.0"
@@ -510,7 +594,7 @@ dependencies = [
  "num-traits",
  "serde",
  "wasm-bindgen",
- "windows-link",
+ "windows-link 0.1.3",
 ]
 
 [[package]]
@@ -635,6 +719,15 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "cmake"
+version = "0.1.57"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "75443c44cd6b379beb8c5b45d85d0773baf31cce901fe7bb252f4eff3008ef7d"
+dependencies = [
+ "cc",
+]
+
 [[package]]
 name = "codespan-reporting"
 version = "0.11.1"
@@ -645,6 +738,16 @@ dependencies = [
  "unicode-width 0.1.11",
 ]
 
+[[package]]
+name = "combine"
+version = "4.6.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ba5a308b75df32fe02788e748662718f03fde005016435c444eea572398219fd"
+dependencies = [
+ "bytes",
+ "memchr",
+]
+
 [[package]]
 name = "console"
 version = "0.15.5"
@@ -707,11 +810,21 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "core-foundation"
+version = "0.10.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b2a6cd9ae233e7f62ba4e9353e81a88df7fc8a5987b8d445b4d90c879bd156f6"
+dependencies = [
+ "core-foundation-sys",
+ "libc",
+]
+
 [[package]]
 name = "core-foundation-sys"
-version = "0.8.3"
+version = "0.8.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5827cebf4670468b8772dd191856768aedcb1b0278a04f989f7766351917b9dc"
+checksum = "773648b94d0e5d620f64f280777445740e61fe701025087ec8b57f45c791888b"
 
 [[package]]
 name = "core_maths"
@@ -902,6 +1015,12 @@ dependencies = [
  "syn 1.0.109",
 ]
 
+[[package]]
+name = "data-encoding"
+version = "2.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d7a1e2f27636f116493b8b860f5546edb47c8d8f8ea73e1d2a20be88e28d1fea"
+
 [[package]]
 name = "deflate64"
 version = "0.1.9"
@@ -1040,6 +1159,12 @@ version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9ea835d29036a4087793836fa931b08837ad5e957da9e23886b29586fb9b6650"
 
+[[package]]
+name = "dunce"
+version = "1.0.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "92773504d58c093f6de2459af4af33faa518c13451eb8f2b5698ed3d36e7c813"
+
 [[package]]
 name = "ece"
 version = "2.3.1"
@@ -1060,6 +1185,15 @@ version = "1.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3f107b87b6afc2a64fd13cac55fe06d6c8859f12d4b14cbcdd2c67d0976781be"
 
+[[package]]
+name = "email_address"
+version = "0.2.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e079f19b08ca6239f47f8ba8509c11cf3ea30095831f7fed61441475edd8c449"
+dependencies = [
+ "serde",
+]
+
 [[package]]
 name = "embedded-uniffi-bindgen"
 version = "0.1.0"
@@ -1472,6 +1606,17 @@ version = "0.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7360491ce676a36bf9bb3c56c1aa791658183a54d2744120f27285738d90465a"
 
+[[package]]
+name = "fancy-regex"
+version = "0.17.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "72cf461f865c862bb7dc573f643dd6a2b6842f7c30b07882b56bd148cc2761b8"
+dependencies = [
+ "bit-set",
+ "regex-automata",
+ "regex-syntax",
+]
+
 [[package]]
 name = "fastrand"
 version = "1.7.0"
@@ -1504,6 +1649,12 @@ dependencies = [
  "uniffi",
 ]
 
+[[package]]
+name = "find-msvc-tools"
+version = "0.1.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5baebc0774151f905a1a2cc41989300b1e6fbb29aff0ceffa1064fdd3088d582"
+
 [[package]]
 name = "find-places-db"
 version = "0.1.0"
@@ -1531,6 +1682,17 @@ dependencies = [
  "miniz_oxide",
 ]
 
+[[package]]
+name = "fluent-uri"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bc74ac4d8359ae70623506d512209619e5cf8f347124910440dbc221714b328e"
+dependencies = [
+ "borrow-or-share",
+ "ref-cast",
+ "serde",
+]
+
 [[package]]
 name = "fnv"
 version = "1.0.7"
@@ -1543,6 +1705,12 @@ version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a0d2fde1f7b3d48b8395d5f2de76c18a528bd6a9cdde438df747bfcba3e05d6f"
 
+[[package]]
+name = "foldhash"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "77ce24cb58228fbb8aa041425bb1050850ac19177686ea6e0f41a70416f56fdb"
+
 [[package]]
 name = "foreign-types"
 version = "0.3.2"
@@ -1567,6 +1735,16 @@ dependencies = [
  "percent-encoding",
 ]
 
+[[package]]
+name = "fraction"
+version = "0.15.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0f158e3ff0a1b334408dc9fb811cd99b446986f4d8b741bb08f9df1604085ae7"
+dependencies = [
+ "lazy_static",
+ "num",
+]
+
 [[package]]
 name = "fragile"
 version = "2.0.0"
@@ -1579,6 +1757,12 @@ version = "2.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5bd79fa345a495d3ae89fb7165fec01c0e72f41821d642dda363a1e97975652e"
 
+[[package]]
+name = "fs_extra"
+version = "1.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "42703706b716c37f96a77aea830392ad231f44c9e9a67872fa5548707e11b11c"
+
 [[package]]
 name = "futures"
 version = "0.3.31"
@@ -1731,27 +1915,27 @@ dependencies = [
 
 [[package]]
 name = "getrandom"
-version = "0.2.7"
+version = "0.2.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4eb1a864a501629691edf6c15a593b7a51eebaa1e8468e9ddc623de7c9b58ec6"
+checksum = "ff2abc00be7fca6ebc474524697ae276ad847ad0a6b3faa4bcb027e9a4614ad0"
 dependencies = [
  "cfg-if",
  "libc",
- "wasi 0.11.0+wasi-snapshot-preview1",
+ "wasi",
 ]
 
 [[package]]
 name = "getrandom"
-version = "0.3.1"
+version = "0.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "43a49c392881ce6d5c3b8cb70f98717b7c07aabbdff06687b9030dbfbe2725f8"
+checksum = "899def5c37c4fd7b2664648c28120ecec138e4d395b459e5ca34f9cce2dd77fd"
 dependencies = [
  "cfg-if",
  "js-sys",
  "libc",
- "wasi 0.13.3+wasi-0.2.2",
+ "r-efi",
+ "wasip2",
  "wasm-bindgen",
- "windows-targets 0.52.6",
 ]
 
 [[package]]
@@ -1788,7 +1972,26 @@ dependencies = [
  "futures-core",
  "futures-sink",
  "futures-util",
- "http",
+ "http 0.2.9",
+ "indexmap 2.5.0",
+ "slab",
+ "tokio",
+ "tokio-util",
+ "tracing",
+]
+
+[[package]]
+name = "h2"
+version = "0.4.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2f44da3a8150a6703ed5d34e164b875fd14c2cdab9af1252a9a1020bde2bdc54"
+dependencies = [
+ "atomic-waker",
+ "bytes",
+ "fnv",
+ "futures-core",
+ "futures-sink",
+ "http 1.4.0",
  "indexmap 2.5.0",
  "slab",
  "tokio",
@@ -1820,7 +2023,18 @@ version = "0.15.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bf151400ff0baff5465007dd2f3e717f3fe502074ca563069ce3a6629d07b289"
 dependencies = [
- "foldhash",
+ "foldhash 0.1.4",
+]
+
+[[package]]
+name = "hashbrown"
+version = "0.16.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "841d1cc9bed7f9236f321df977030373f4a4163ae1a7dbfe1a51a2c1a51d9100"
+dependencies = [
+ "allocator-api2",
+ "equivalent",
+ "foldhash 0.2.0",
 ]
 
 [[package]]
@@ -1893,6 +2107,16 @@ dependencies = [
  "itoa",
 ]
 
+[[package]]
+name = "http"
+version = "1.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e3ba2a386d7f85a81f119ad7498ebe444d2e22c2af0b86b069416ace48b3311a"
+dependencies = [
+ "bytes",
+ "itoa",
+]
+
 [[package]]
 name = "http-body"
 version = "0.4.5"
@@ -1900,7 +2124,30 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d5f38f16d184e36f2408a55281cd658ecbd3ca05cce6d6510a176eca393e26d1"
 dependencies = [
  "bytes",
- "http",
+ "http 0.2.9",
+ "pin-project-lite",
+]
+
+[[package]]
+name = "http-body"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1efedce1fb8e6913f23e0c92de8e62cd5b772a67e7b3946df930a62566c93184"
+dependencies = [
+ "bytes",
+ "http 1.4.0",
+]
+
+[[package]]
+name = "http-body-util"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b021d93e26becf5dc7e1b75b1bed1fd93124b374ceb73f43d4d4eafec896a64a"
+dependencies = [
+ "bytes",
+ "futures-core",
+ "http 1.4.0",
+ "http-body 1.0.1",
  "pin-project-lite",
 ]
 
@@ -1912,9 +2159,9 @@ checksum = "0bfe8eed0a9285ef776bb792479ea3834e8b94e13d615c2f66d03dd50a435a29"
 
 [[package]]
 name = "httparse"
-version = "1.8.0"
+version = "1.10.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d897f394bad6a705d5f4104762e116a75639e470d80901eed05a860a95cb1904"
+checksum = "6dbf3de79e51f3d586ab4cb9d5c3e2c14aa28ed23d180cf89b4df0454a69cc87"
 
 [[package]]
 name = "httpdate"
@@ -1938,20 +2185,58 @@ dependencies = [
  "futures-channel",
  "futures-core",
  "futures-util",
- "h2",
- "http",
- "http-body",
+ "h2 0.3.26",
+ "http 0.2.9",
+ "http-body 0.4.5",
  "httparse",
  "httpdate",
  "itoa",
  "pin-project-lite",
- "socket2",
+ "socket2 0.4.9",
  "tokio",
  "tower-service",
  "tracing",
  "want",
 ]
 
+[[package]]
+name = "hyper"
+version = "1.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2ab2d4f250c3d7b1c9fcdff1cece94ea4e2dfbec68614f7b87cb205f24ca9d11"
+dependencies = [
+ "atomic-waker",
+ "bytes",
+ "futures-channel",
+ "futures-core",
+ "h2 0.4.13",
+ "http 1.4.0",
+ "http-body 1.0.1",
+ "httparse",
+ "itoa",
+ "pin-project-lite",
+ "pin-utils",
+ "smallvec",
+ "tokio",
+ "want",
+]
+
+[[package]]
+name = "hyper-rustls"
+version = "0.27.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e3c93eb611681b207e1fe55d5a71ecf91572ec8a6705cdb6857f7d8d5242cf58"
+dependencies = [
+ "http 1.4.0",
+ "hyper 1.8.1",
+ "hyper-util",
+ "rustls",
+ "rustls-pki-types",
+ "tokio",
+ "tokio-rustls",
+ "tower-service",
+]
+
 [[package]]
 name = "hyper-tls"
 version = "0.5.0"
@@ -1959,12 +2244,35 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d6183ddfa99b85da61a140bea0efc93fdf56ceaa041b37d553518030827f9905"
 dependencies = [
  "bytes",
- "hyper",
+ "hyper 0.14.27",
  "native-tls",
  "tokio",
  "tokio-native-tls",
 ]
 
+[[package]]
+name = "hyper-util"
+version = "0.1.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "96547c2556ec9d12fb1578c4eaf448b04993e7fb79cbaad930a656880a6bdfa0"
+dependencies = [
+ "base64 0.22.1",
+ "bytes",
+ "futures-channel",
+ "futures-util",
+ "http 1.4.0",
+ "http-body 1.0.1",
+ "hyper 1.8.1",
+ "ipnet",
+ "libc",
+ "percent-encoding",
+ "pin-project-lite",
+ "socket2 0.6.3",
+ "tokio",
+ "tower-service",
+ "tracing",
+]
+
 [[package]]
 name = "iana-time-zone"
 version = "0.1.53"
@@ -2255,9 +2563,19 @@ dependencies = [
 
 [[package]]
 name = "ipnet"
-version = "2.5.0"
+version = "2.12.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d98f6fed1fde3f8c21bc40a1abb88dd75e67924f9cffc3ef95607bad8017f8e2"
+
+[[package]]
+name = "iri-string"
+version = "0.7.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "879d54834c8c76457ef4293a689b2a8c59b076067ad77b15efafbb05f92a592b"
+checksum = "c91338f0783edbd6195decb37bae672fd3b165faffb89bf7b9e6942f8b1a731a"
+dependencies = [
+ "memchr",
+ "serde",
+]
 
 [[package]]
 name = "is-docker"
@@ -2337,6 +2655,28 @@ dependencies = [
  "regex",
 ]
 
+[[package]]
+name = "jni"
+version = "0.21.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1a87aa2bb7d2af34197c04845522473242e1aa17c12f4935d5856491a7fb8c97"
+dependencies = [
+ "cesu8",
+ "cfg-if",
+ "combine",
+ "jni-sys",
+ "log",
+ "thiserror 1.0.69",
+ "walkdir",
+ "windows-sys 0.45.0",
+]
+
+[[package]]
+name = "jni-sys"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8eaf4bc02d17cbdd7ff4c7438cafcdf7fb9a4613313ad11b4f8fefe7d3fa0130"
+
 [[package]]
 name = "jobserver"
 version = "0.1.32"
@@ -2356,6 +2696,35 @@ dependencies = [
  "wasm-bindgen",
 ]
 
+[[package]]
+name = "jsonschema"
+version = "0.43.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2dcfbe6df48e0121219eefc8d6a30b872ac2769c7896454bda06f7b64129fa22"
+dependencies = [
+ "ahash",
+ "bytecount",
+ "data-encoding",
+ "email_address",
+ "fancy-regex",
+ "fraction",
+ "getrandom 0.3.4",
+ "idna",
+ "itoa",
+ "num-cmp",
+ "num-traits",
+ "percent-encoding",
+ "referencing",
+ "regex",
+ "regex-syntax",
+ "reqwest 0.13.2",
+ "rustls",
+ "serde",
+ "serde_json",
+ "unicode-general-category",
+ "uuid-simd",
+]
+
 [[package]]
 name = "jwcrypto"
 version = "0.1.0"
@@ -2393,9 +2762,9 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
-version = "0.2.169"
+version = "0.2.183"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b5aba8db14291edd000dfcc4d620c7ebfb122c613afb886ca8803fa4e128a20a"
+checksum = "b5b646652bf6661599e1da8901b3b9522896f01e736bad5f723fe7a3a27f899d"
 
 [[package]]
 name = "libloading"
@@ -2419,7 +2788,7 @@ version = "0.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "391290121bad3d37fbddad76d8f5d1c1c314cfc646d143d7e07a3086ddff0ce3"
 dependencies = [
- "bitflags 2.8.0",
+ "bitflags 2.11.0",
  "libc",
  "redox_syscall 0.5.17",
 ]
@@ -2482,11 +2851,10 @@ dependencies = [
 
 [[package]]
 name = "lock_api"
-version = "0.4.7"
+version = "0.4.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "327fa5b6a6940e4699ec49a9beae1ea4845c6bab9314e4f84ac68742139d8c53"
+checksum = "224399e74b87b5f3557511d98dff8b14089b3dadafcab6bb93eab67d3aace965"
 dependencies = [
- "autocfg",
  "scopeguard",
 ]
 
@@ -2739,7 +3107,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a4a650543ca06a924e8b371db273b2756685faae30f8487da1b56505a8f78b0c"
 dependencies = [
  "libc",
- "wasi 0.11.0+wasi-snapshot-preview1",
+ "wasi",
  "windows-sys 0.48.0",
 ]
 
@@ -2797,10 +3165,10 @@ dependencies = [
  "libc",
  "log",
  "openssl",
- "openssl-probe",
+ "openssl-probe 0.1.5",
  "openssl-sys",
  "schannel",
- "security-framework",
+ "security-framework 2.6.1",
  "security-framework-sys",
  "tempfile",
 ]
@@ -2842,7 +3210,7 @@ dependencies = [
  "copypasta",
  "glob",
  "heck",
- "hyper",
+ "hyper 0.14.27",
  "local-ip-address",
  "nimbus-fml",
  "percent-encoding",
@@ -2853,8 +3221,8 @@ dependencies = [
  "termcolor",
  "thiserror 2.0.3",
  "tokio",
- "tower",
- "tower-http",
+ "tower 0.4.13",
+ "tower-http 0.4.2",
  "tower-livereload",
  "unicode-segmentation",
  "update-informer",
@@ -2975,16 +3343,86 @@ dependencies = [
 ]
 
 [[package]]
-name = "num-conv"
-version = "0.2.0"
+name = "num"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "35bd024e8b2ff75562e5f34e7f4905839deb4b22955ef5e73d2fea1b9813cb23"
+dependencies = [
+ "num-bigint",
+ "num-complex",
+ "num-integer",
+ "num-iter",
+ "num-rational",
+ "num-traits",
+]
+
+[[package]]
+name = "num-bigint"
+version = "0.4.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a5e44f723f1133c9deac646763579fdb3ac745e418f2a7af9cd0c431da1f20b9"
+dependencies = [
+ "num-integer",
+ "num-traits",
+]
+
+[[package]]
+name = "num-cmp"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "63335b2e2c34fae2fb0aa2cecfd9f0832a1e24b3b32ecec612c3426d46dc8aaa"
+
+[[package]]
+name = "num-complex"
+version = "0.4.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "73f88a1307638156682bada9d7604135552957b7818057dcef22705b4d509495"
+dependencies = [
+ "num-traits",
+]
+
+[[package]]
+name = "num-conv"
+version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cf97ec579c3c42f953ef76dbf8d55ac91fb219dde70e49aa4a6b7d74e9919050"
 
+[[package]]
+name = "num-integer"
+version = "0.1.46"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7969661fd2958a5cb096e56c8e1ad0444ac2bbcd0061bd28660485a44879858f"
+dependencies = [
+ "num-traits",
+]
+
+[[package]]
+name = "num-iter"
+version = "0.1.45"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1429034a0490724d0075ebb2bc9e875d6503c3cf69e235a8941aa757d83ef5bf"
+dependencies = [
+ "autocfg",
+ "num-integer",
+ "num-traits",
+]
+
+[[package]]
+name = "num-rational"
+version = "0.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f83d14da390562dca69fc84082e73e548e1ad308d24accdedd2720017cb37824"
+dependencies = [
+ "num-bigint",
+ "num-integer",
+ "num-traits",
+]
+
 [[package]]
 name = "num-traits"
-version = "0.2.17"
+version = "0.2.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "39e3200413f237f41ab11ad6d161bc7239c84dcb631773ccd7de3dfe4b5c267c"
+checksum = "071dfc062690e90b734c0b2273ce72ad0ffa95f0c74596bc250dcfd960262841"
 dependencies = [
  "autocfg",
  "libm",
@@ -3101,7 +3539,7 @@ version = "0.10.72"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fedfea7d58a1f73118430a55da6a286e7b044961736ce96a16a17068ea25e5da"
 dependencies = [
- "bitflags 2.8.0",
+ "bitflags 2.11.0",
  "cfg-if",
  "foreign-types",
  "libc",
@@ -3127,6 +3565,12 @@ version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ff011a302c396a5197692431fc1948019154afc178baf7d8e37367442a4601cf"
 
+[[package]]
+name = "openssl-probe"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7c87def4c32ab89d880effc9e097653c8da5d6ef28e6b539d313baaacfbafcbe"
+
 [[package]]
 name = "openssl-src"
 version = "300.3.1+3.3.1"
@@ -3164,11 +3608,17 @@ dependencies = [
  "num-traits",
 ]
 
+[[package]]
+name = "outref"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1a80800c0488c3a21695ea981a54918fbb37abf04f4d0720c453632255e2ff0e"
+
 [[package]]
 name = "parking_lot"
-version = "0.12.1"
+version = "0.12.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3742b2c103b9f06bc9fff0a37ff4912935851bee6d36f3c02bcc755bcfec228f"
+checksum = "93857453250e3077bd71ff98b6a65ea6621a19bb0f559a85248955ac12c45a1a"
 dependencies = [
  "lock_api",
  "parking_lot_core",
@@ -3176,15 +3626,15 @@ dependencies = [
 
 [[package]]
 name = "parking_lot_core"
-version = "0.9.3"
+version = "0.9.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "09a279cbf25cb0757810394fbc1e359949b59e348145c643a939a525692e6929"
+checksum = "2621685985a2ebf1c516881c026032ac7deafcda1a2c9b7850dc81e3dfcb64c1"
 dependencies = [
  "cfg-if",
  "libc",
- "redox_syscall 0.2.13",
+ "redox_syscall 0.5.17",
  "smallvec",
- "windows-sys 0.36.1",
+ "windows-link 0.2.1",
 ]
 
 [[package]]
@@ -3478,6 +3928,12 @@ dependencies = [
  "proc-macro2",
 ]
 
+[[package]]
+name = "r-efi"
+version = "5.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "69cdb34c158ceb288df11e18b4bd39de994f6657d83847bdffdbd7f346754b0f"
+
 [[package]]
 name = "rand"
 version = "0.8.5"
@@ -3505,7 +3961,7 @@ version = "0.6.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ec0be4795e2f6a28069bec0b5ff3e2ac9bafc99e6a9a7dc3547996c5c816922c"
 dependencies = [
- "getrandom 0.2.7",
+ "getrandom 0.2.17",
 ]
 
 [[package]]
@@ -3592,7 +4048,7 @@ version = "0.5.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5407465600fb0548f1442edf71dd20683c6ed326200ace4b1ef0763521bb3b77"
 dependencies = [
- "bitflags 2.8.0",
+ "bitflags 2.11.0",
 ]
 
 [[package]]
@@ -3607,11 +4063,46 @@ version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b033d837a7cf162d7993aded9304e30a83213c648b6e389db233191f891e5c2b"
 dependencies = [
- "getrandom 0.2.7",
+ "getrandom 0.2.17",
  "redox_syscall 0.2.13",
  "thiserror 1.0.69",
 ]
 
+[[package]]
+name = "ref-cast"
+version = "1.0.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f354300ae66f76f1c85c5f84693f0ce81d747e2c3f21a45fef496d89c960bf7d"
+dependencies = [
+ "ref-cast-impl",
+]
+
+[[package]]
+name = "ref-cast-impl"
+version = "1.0.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b7186006dcb21920990093f30e3dea63b7d6e977bf1256be20c3563a5db070da"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.106",
+]
+
+[[package]]
+name = "referencing"
+version = "0.43.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "37add1aa1d619a975521d262d09f100f1f767791c9386c03679450f30acd78c1"
+dependencies = [
+ "ahash",
+ "fluent-uri",
+ "getrandom 0.3.4",
+ "hashbrown 0.16.1",
+ "parking_lot",
+ "percent-encoding",
+ "serde_json",
+]
+
 [[package]]
 name = "regex"
 version = "1.11.1"
@@ -3723,10 +4214,10 @@ dependencies = [
  "encoding_rs",
  "futures-core",
  "futures-util",
- "h2",
- "http",
- "http-body",
- "hyper",
+ "h2 0.3.26",
+ "http 0.2.9",
+ "http-body 0.4.5",
+ "hyper 0.14.27",
  "hyper-tls",
  "ipnet",
  "js-sys",
@@ -3749,6 +4240,45 @@ dependencies = [
  "winreg",
 ]
 
+[[package]]
+name = "reqwest"
+version = "0.13.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ab3f43e3283ab1488b624b44b0e988d0acea0b3214e694730a055cb6b2efa801"
+dependencies = [
+ "base64 0.22.1",
+ "bytes",
+ "futures-channel",
+ "futures-core",
+ "futures-util",
+ "h2 0.4.13",
+ "http 1.4.0",
+ "http-body 1.0.1",
+ "http-body-util",
+ "hyper 1.8.1",
+ "hyper-rustls",
+ "hyper-util",
+ "js-sys",
+ "log",
+ "percent-encoding",
+ "pin-project-lite",
+ "rustls",
+ "rustls-pki-types",
+ "rustls-platform-verifier",
+ "serde",
+ "serde_json",
+ "sync_wrapper 1.0.2",
+ "tokio",
+ "tokio-rustls",
+ "tower 0.5.3",
+ "tower-http 0.6.8",
+ "tower-service",
+ "url",
+ "wasm-bindgen",
+ "wasm-bindgen-futures",
+ "web-sys",
+]
+
 [[package]]
 name = "restmail-client"
 version = "0.1.0"
@@ -3760,6 +4290,20 @@ dependencies = [
  "viaduct",
 ]
 
+[[package]]
+name = "ring"
+version = "0.17.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a4689e6c2294d81e88dc6261c768b63bc4fcdb852be6d1352498b114f61383b7"
+dependencies = [
+ "cc",
+ "cfg-if",
+ "getrandom 0.2.17",
+ "libc",
+ "untrusted",
+ "windows-sys 0.52.0",
+]
+
 [[package]]
 name = "rkv"
 version = "0.20.0"
@@ -3768,7 +4312,7 @@ checksum = "0f67a9dbc634fcd36a2d1d800ca818065dcf71a1d907dc35130c2d1552c6e1dc"
 dependencies = [
  "arrayref",
  "bincode",
- "bitflags 2.8.0",
+ "bitflags 2.11.0",
  "id-arena",
  "lazy_static",
  "log",
@@ -3786,7 +4330,7 @@ version = "0.37.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "165ca6e57b20e1351573e3729b958bc62f0e48025386970b6e4d29e7a7e71f3f"
 dependencies = [
- "bitflags 2.8.0",
+ "bitflags 2.11.0",
  "fallible-iterator",
  "fallible-streaming-iterator",
  "hashlink",
@@ -3846,6 +4390,80 @@ dependencies = [
  "windows-sys 0.48.0",
 ]
 
+[[package]]
+name = "rustls"
+version = "0.23.37"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "758025cb5fccfd3bc2fd74708fd4682be41d99e5dff73c377c0646c6012c73a4"
+dependencies = [
+ "aws-lc-rs",
+ "once_cell",
+ "rustls-pki-types",
+ "rustls-webpki",
+ "subtle",
+ "zeroize",
+]
+
+[[package]]
+name = "rustls-native-certs"
+version = "0.8.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "612460d5f7bea540c490b2b6395d8e34a953e52b491accd6c86c8164c5932a63"
+dependencies = [
+ "openssl-probe 0.2.1",
+ "rustls-pki-types",
+ "schannel",
+ "security-framework 3.7.0",
+]
+
+[[package]]
+name = "rustls-pki-types"
+version = "1.14.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "be040f8b0a225e40375822a563fa9524378b9d63112f53e19ffff34df5d33fdd"
+dependencies = [
+ "zeroize",
+]
+
+[[package]]
+name = "rustls-platform-verifier"
+version = "0.6.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1d99feebc72bae7ab76ba994bb5e121b8d83d910ca40b36e0921f53becc41784"
+dependencies = [
+ "core-foundation 0.10.1",
+ "core-foundation-sys",
+ "jni",
+ "log",
+ "once_cell",
+ "rustls",
+ "rustls-native-certs",
+ "rustls-platform-verifier-android",
+ "rustls-webpki",
+ "security-framework 3.7.0",
+ "security-framework-sys",
+ "webpki-root-certs",
+ "windows-sys 0.61.2",
+]
+
+[[package]]
+name = "rustls-platform-verifier-android"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f87165f0995f63a9fbeea62b64d10b4d9d8e78ec6d7d51fb2125fda7bb36788f"
+
+[[package]]
+name = "rustls-webpki"
+version = "0.103.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d7df23109aa6c1567d1c575b9952556388da57401e4ace1d15f79eedad0d8f53"
+dependencies = [
+ "aws-lc-rs",
+ "ring",
+ "rustls-pki-types",
+ "untrusted",
+]
+
 [[package]]
 name = "rustversion"
 version = "1.0.12"
@@ -3939,7 +4557,20 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2dc14f172faf8a0194a3aded622712b0de276821addc574fa54fc0a1167e10dc"
 dependencies = [
  "bitflags 1.3.2",
- "core-foundation",
+ "core-foundation 0.9.3",
+ "core-foundation-sys",
+ "libc",
+ "security-framework-sys",
+]
+
+[[package]]
+name = "security-framework"
+version = "3.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b7f4bc775c73d9a02cde8bf7b2ec4c9d12743edf609006c7facc23998404cd1d"
+dependencies = [
+ "bitflags 2.11.0",
+ "core-foundation 0.10.1",
  "core-foundation-sys",
  "libc",
  "security-framework-sys",
@@ -3947,9 +4578,9 @@ dependencies = [
 
 [[package]]
 name = "security-framework-sys"
-version = "2.6.1"
+version = "2.17.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0160a13a177a45bfb43ce71c01580998474f556ad854dcbca936dd2841a5c556"
+checksum = "6ce2691df843ecc5d231c0b14ece2acc3efb62c0a398c7e1d875f3983ce020e3"
 dependencies = [
  "core-foundation-sys",
  "libc",
@@ -4185,6 +4816,16 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "socket2"
+version = "0.6.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3a766e1110788c36f4fa1c2b71b387a7815aa65f88ce0229841826633d93723e"
+dependencies = [
+ "libc",
+ "windows-sys 0.61.2",
+]
+
 [[package]]
 name = "sql-support"
 version = "0.1.0"
@@ -4400,6 +5041,15 @@ version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2047c6ded9c721764247e62cd3b03c09ffc529b2ba5b10ec482ae507a4a70160"
 
+[[package]]
+name = "sync_wrapper"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0bf256ce5efdfa370213c1dabab5935a12e49f2c58d15e9eac2870d3b4f27263"
+dependencies = [
+ "futures-core",
+]
+
 [[package]]
 name = "synstructure"
 version = "0.13.1"
@@ -4592,7 +5242,7 @@ dependencies = [
  "mio",
  "num_cpus",
  "pin-project-lite",
- "socket2",
+ "socket2 0.4.9",
  "tokio-macros",
  "windows-sys 0.48.0",
 ]
@@ -4618,6 +5268,16 @@ dependencies = [
  "tokio",
 ]
 
+[[package]]
+name = "tokio-rustls"
+version = "0.26.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1729aa945f29d91ba541258c8df89027d5792d85a8841fb65e8bf0f4ede4ef61"
+dependencies = [
+ "rustls",
+ "tokio",
+]
+
 [[package]]
 name = "tokio-util"
 version = "0.7.3"
@@ -4713,18 +5373,33 @@ dependencies = [
  "tracing",
 ]
 
+[[package]]
+name = "tower"
+version = "0.5.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ebe5ef63511595f1344e2d5cfa636d973292adc0eec1f0ad45fae9f0851ab1d4"
+dependencies = [
+ "futures-core",
+ "futures-util",
+ "pin-project-lite",
+ "sync_wrapper 1.0.2",
+ "tokio",
+ "tower-layer",
+ "tower-service",
+]
+
 [[package]]
 name = "tower-http"
 version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7ac8060a61f8758a61562f6fb53ba3cbe1ca906f001df2e53cccddcdbee91e7c"
 dependencies = [
- "bitflags 2.8.0",
+ "bitflags 2.11.0",
  "bytes",
  "futures-core",
  "futures-util",
- "http",
- "http-body",
+ "http 0.2.9",
+ "http-body 0.4.5",
  "http-range-header",
  "httpdate",
  "mime",
@@ -4738,11 +5413,29 @@ dependencies = [
  "tracing",
 ]
 
+[[package]]
+name = "tower-http"
+version = "0.6.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d4e6559d53cc268e5031cd8429d05415bc4cb4aefc4aa5d6cc35fbf5b924a1f8"
+dependencies = [
+ "bitflags 2.11.0",
+ "bytes",
+ "futures-util",
+ "http 1.4.0",
+ "http-body 1.0.1",
+ "iri-string",
+ "pin-project-lite",
+ "tower 0.5.3",
+ "tower-layer",
+ "tower-service",
+]
+
 [[package]]
 name = "tower-layer"
-version = "0.3.2"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c20c8dbed6283a09604c3e69b4b7eeb54e298b8a600d4d5ecb5ad39de609f1d0"
+checksum = "121c2a6cda46980bb0fcd1647ffaf6cd3fc79a013de288782836f6df9c48780e"
 
 [[package]]
 name = "tower-livereload"
@@ -4751,18 +5444,18 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7e90e6da0427c5e111e03c764d49c4e970f5a9f6569fe408e5a1cbe257f48388"
 dependencies = [
  "bytes",
- "http",
- "http-body",
+ "http 0.2.9",
+ "http-body 0.4.5",
  "pin-project-lite",
  "tokio",
- "tower",
+ "tower 0.4.13",
 ]
 
 [[package]]
 name = "tower-service"
-version = "0.3.2"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b6bc1c9ce2b5135ac7f93c72918fc37feb872bdc6a5533a8b85eb4b86bfdae52"
+checksum = "8df9b6e13f2d32c91b9bd719c00d1958837bc7dec474d94952798cc8e69eeec3"
 
 [[package]]
 name = "tracing"
@@ -4866,6 +5559,12 @@ dependencies = [
  "version_check",
 ]
 
+[[package]]
+name = "unicode-general-category"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0b993bddc193ae5bd0d623b49ec06ac3e9312875fdae725a975c51db1cc1677f"
+
 [[package]]
 name = "unicode-ident"
 version = "1.0.18"
@@ -5032,6 +5731,12 @@ version = "0.2.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1865806a559042e51ab5414598446a5871b561d21b6764f2eabb0dd481d880a6"
 
+[[package]]
+name = "untrusted"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8ecb6da28b8a351d773b68d5825ac39017e680750f980f3a1a85cd8dd28a47c1"
+
 [[package]]
 name = "update-informer"
 version = "1.0.0"
@@ -5068,10 +5773,20 @@ version = "1.13.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ced87ca4be083373936a67f8de945faa23b6b42384bd5b64434850802c6dccd0"
 dependencies = [
- "getrandom 0.3.1",
+ "getrandom 0.3.4",
  "serde",
 ]
 
+[[package]]
+name = "uuid-simd"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "23b082222b4f6619906941c17eb2297fff4c2fb96cb60164170522942a200bd8"
+dependencies = [
+ "outref",
+ "vsimd",
+]
+
 [[package]]
 name = "vcpkg"
 version = "0.2.15"
@@ -5122,7 +5837,7 @@ version = "0.2.0"
 dependencies = [
  "async-trait",
  "error-support",
- "hyper",
+ "hyper 0.14.27",
  "hyper-tls",
  "tokio",
  "uniffi",
@@ -5136,10 +5851,16 @@ version = "0.2.0"
 dependencies = [
  "error-support",
  "once_cell",
- "reqwest",
+ "reqwest 0.11.18",
  "viaduct",
 ]
 
+[[package]]
+name = "vsimd"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5c3082ca00d5a5ef149bb8b555a72ae84c9c59f7250f013ac822ac2e49b19c64"
+
 [[package]]
 name = "walkdir"
 version = "2.5.0"
@@ -5167,12 +5888,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
 
 [[package]]
-name = "wasi"
-version = "0.13.3+wasi-0.2.2"
+name = "wasip2"
+version = "1.0.2+wasi-0.2.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "26816d2e1a4a36a2940b96c5296ce403917633dff8f3440e9b236ed6f6bacad2"
+checksum = "9517f9239f02c069db75e65f174b3da828fe5f5b945c4dd26bd25d89c03ebcf5"
 dependencies = [
- "wit-bindgen-rt",
+ "wit-bindgen",
 ]
 
 [[package]]
@@ -5378,6 +6099,15 @@ dependencies = [
  "webext-storage",
 ]
 
+[[package]]
+name = "webpki-root-certs"
+version = "1.0.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "804f18a4ac2676ffb4e8b5b5fa9ae38af06df08162314f96a68d2a363e21a8ca"
+dependencies = [
+ "rustls-pki-types",
+]
+
 [[package]]
 name = "weedle2"
 version = "5.0.0"
@@ -5443,6 +6173,12 @@ version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5e6ad25900d524eaabdbbb96d20b4311e1e7ae1699af4fb28c17ae66c80d798a"
 
+[[package]]
+name = "windows-link"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f0805222e57f7521d6a62e36fa9163bc891acd422f971defe97d64e70d0a4fe5"
+
 [[package]]
 name = "windows-sys"
 version = "0.36.1"
@@ -5462,13 +6198,22 @@ version = "0.42.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5a3e1820f08b8513f676f7ab6c1f99ff312fb97b553d30ff4dd86f9f15728aa7"
 dependencies = [
- "windows_aarch64_gnullvm 0.42.0",
- "windows_aarch64_msvc 0.42.0",
- "windows_i686_gnu 0.42.0",
- "windows_i686_msvc 0.42.0",
- "windows_x86_64_gnu 0.42.0",
- "windows_x86_64_gnullvm 0.42.0",
- "windows_x86_64_msvc 0.42.0",
+ "windows_aarch64_gnullvm 0.42.2",
+ "windows_aarch64_msvc 0.42.2",
+ "windows_i686_gnu 0.42.2",
+ "windows_i686_msvc 0.42.2",
+ "windows_x86_64_gnu 0.42.2",
+ "windows_x86_64_gnullvm 0.42.2",
+ "windows_x86_64_msvc 0.42.2",
+]
+
+[[package]]
+name = "windows-sys"
+version = "0.45.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "75283be5efb2831d37ea142365f009c02ec203cd29a3ebecbc093d52315b66d0"
+dependencies = [
+ "windows-targets 0.42.2",
 ]
 
 [[package]]
@@ -5480,6 +6225,39 @@ dependencies = [
  "windows-targets 0.48.0",
 ]
 
+[[package]]
+name = "windows-sys"
+version = "0.52.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "282be5f36a8ce781fad8c8ae18fa3f9beff57ec1b52cb3de0789201425d9a33d"
+dependencies = [
+ "windows-targets 0.52.6",
+]
+
+[[package]]
+name = "windows-sys"
+version = "0.61.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ae137229bcbd6cdf0f7b80a31df61766145077ddf49416a728b02cb3921ff3fc"
+dependencies = [
+ "windows-link 0.2.1",
+]
+
+[[package]]
+name = "windows-targets"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e5180c00cd44c9b1c88adb3693291f1cd93605ded80c250a75d472756b4d071"
+dependencies = [
+ "windows_aarch64_gnullvm 0.42.2",
+ "windows_aarch64_msvc 0.42.2",
+ "windows_i686_gnu 0.42.2",
+ "windows_i686_msvc 0.42.2",
+ "windows_x86_64_gnu 0.42.2",
+ "windows_x86_64_gnullvm 0.42.2",
+ "windows_x86_64_msvc 0.42.2",
+]
+
 [[package]]
 name = "windows-targets"
 version = "0.48.0"
@@ -5513,9 +6291,9 @@ dependencies = [
 
 [[package]]
 name = "windows_aarch64_gnullvm"
-version = "0.42.0"
+version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "41d2aa71f6f0cbe00ae5167d90ef3cfe66527d6f613ca78ac8024c3ccab9a19e"
+checksum = "597a5118570b68bc08d8d59125332c54f1ba9d9adeedeef5b99b02ba2b0698f8"
 
 [[package]]
 name = "windows_aarch64_gnullvm"
@@ -5537,9 +6315,9 @@ checksum = "9bb8c3fd39ade2d67e9874ac4f3db21f0d710bee00fe7cab16949ec184eeaa47"
 
 [[package]]
 name = "windows_aarch64_msvc"
-version = "0.42.0"
+version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dd0f252f5a35cac83d6311b2e795981f5ee6e67eb1f9a7f64eb4500fbc4dcdb4"
+checksum = "e08e8864a60f06ef0d0ff4ba04124db8b0fb3be5776a5cd47641e942e58c4d43"
 
 [[package]]
 name = "windows_aarch64_msvc"
@@ -5561,9 +6339,9 @@ checksum = "180e6ccf01daf4c426b846dfc66db1fc518f074baa793aa7d9b9aaeffad6a3b6"
 
 [[package]]
 name = "windows_i686_gnu"
-version = "0.42.0"
+version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fbeae19f6716841636c28d695375df17562ca208b2b7d0dc47635a50ae6c5de7"
+checksum = "c61d927d8da41da96a81f029489353e68739737d3beca43145c8afec9a31a84f"
 
 [[package]]
 name = "windows_i686_gnu"
@@ -5591,9 +6369,9 @@ checksum = "e2e7917148b2812d1eeafaeb22a97e4813dfa60a3f8f78ebe204bcc88f12f024"
 
 [[package]]
 name = "windows_i686_msvc"
-version = "0.42.0"
+version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "84c12f65daa39dd2babe6e442988fc329d6243fdce47d7d2d155b8d874862246"
+checksum = "44d840b6ec649f480a41c8d80f9c65108b92d89345dd94027bfe06ac444d1060"
 
 [[package]]
 name = "windows_i686_msvc"
@@ -5615,9 +6393,9 @@ checksum = "4dcd171b8776c41b97521e5da127a2d86ad280114807d0b2ab1e462bc764d9e1"
 
 [[package]]
 name = "windows_x86_64_gnu"
-version = "0.42.0"
+version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bf7b1b21b5362cbc318f686150e5bcea75ecedc74dd157d874d754a2ca44b0ed"
+checksum = "8de912b8b8feb55c064867cf047dda097f92d51efad5b491dfb98f6bbb70cb36"
 
 [[package]]
 name = "windows_x86_64_gnu"
@@ -5633,9 +6411,9 @@ checksum = "147a5c80aabfbf0c7d901cb5895d1de30ef2907eb21fbbab29ca94c5b08b1a78"
 
 [[package]]
 name = "windows_x86_64_gnullvm"
-version = "0.42.0"
+version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "09d525d2ba30eeb3297665bd434a54297e4170c7f1a44cad4ef58095b4cd2028"
+checksum = "26d41b46a36d453748aedef1486d5c7a85db22e56aff34643984ea85514e94a3"
 
 [[package]]
 name = "windows_x86_64_gnullvm"
@@ -5657,9 +6435,9 @@ checksum = "c811ca4a8c853ef420abd8592ba53ddbbac90410fab6903b3e79972a631f7680"
 
 [[package]]
 name = "windows_x86_64_msvc"
-version = "0.42.0"
+version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f40009d85759725a34da6d89a94e63d7bdc50a862acf0dbc7c8e488f1edcb6f5"
+checksum = "9aec5da331524158c6d1a4ac0ab1541149c0b9505fde06423b02f5ef0106b9f0"
 
 [[package]]
 name = "windows_x86_64_msvc"
@@ -5701,13 +6479,10 @@ dependencies = [
 ]
 
 [[package]]
-name = "wit-bindgen-rt"
-version = "0.33.0"
+name = "wit-bindgen"
+version = "0.51.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3268f3d866458b787f390cf61f4bbb563b922d091359f9608842999eaee3943c"
-dependencies = [
- "bitflags 2.8.0",
-]
+checksum = "d7249219f66ced02969388cf2bb044a09756a083d0fab1e566056b04d9fbcaa5"
 
 [[package]]
 name = "writeable"
@@ -5803,6 +6578,26 @@ dependencies = [
  "synstructure",
 ]
 
+[[package]]
+name = "zerocopy"
+version = "0.8.42"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f2578b716f8a7a858b7f02d5bd870c14bf4ddbbcf3a4c05414ba6503640505e3"
+dependencies = [
+ "zerocopy-derive",
+]
+
+[[package]]
+name = "zerocopy-derive"
+version = "0.8.42"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7e6cc098ea4d3bd6246687de65af3f920c430e236bee1e3bf2e441463f08a02f"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.106",
+]
+
 [[package]]
 name = "zerofrom"
 version = "0.1.5"
@@ -5892,7 +6687,7 @@ dependencies = [
  "deflate64",
  "displaydoc",
  "flate2",
- "getrandom 0.3.1",
+ "getrandom 0.3.4",
  "hmac",
  "indexmap 2.5.0",
  "lzma-rs",
diff --git a/components/ads-client/Cargo.toml b/components/ads-client/Cargo.toml
index 67d93c1ed5..5457e95a46 100644
--- a/components/ads-client/Cargo.toml
+++ b/components/ads-client/Cargo.toml
@@ -31,9 +31,11 @@ viaduct = { path = "../viaduct" }
 sql-support = { path = "../support/sql" }
 
 [dev-dependencies]
+jsonschema = "0.43"
 mockall = "0.12"
 mockito = { version = "0.31", default-features = false }
 viaduct-dev = { path = "../support/viaduct-dev" }
+viaduct-hyper = { path = "../support/viaduct-hyper" }
 
 [build-dependencies]
 uniffi = { version = "0.31", features = ["build"] }
diff --git a/components/ads-client/openapi.json b/components/ads-client/openapi.json
new file mode 100644
index 0000000000..388f249223
--- /dev/null
+++ b/components/ads-client/openapi.json
@@ -0,0 +1,1397 @@
+{
+  "openapi": "3.0.0",
+  "security": [],
+  "servers": [
+    {
+      "url": "https://ads.mozilla.org"
+    }
+  ],
+  "info": {
+    "description": "Mozilla Ad Routing Service",
+    "version": "1.0",
+    "title": "MARS"
+  },
+  "paths": {
+    "/v1/ads": {
+      "post": {
+        "summary": "Get Unified API ads",
+        "operationId": "getAds",
+        "parameters": [
+          {
+            "in": "header",
+            "name": "X-User-Agent",
+            "description": "For OHTTP requests, the X-User-Agent header must be populated with a valid User Agent string. This string will typically be acquired from a /v1/ads-preflight response.\n\nFor non-OHTTP requests, the header should be omitted.",
+            "schema": {
+              "type": "string"
+            }
+          },
+          {
+            "in": "header",
+            "name": "X-Geo-Location",
+            "description": "For OHTTP requests, the X-Geo-Location header must be populated with a valide geo location string. This string will typically be acquired from a /v1/ads-preflight response.\n\nFor non-OHTTP requests, the header should be omitted.",
+            "schema": {
+              "type": "string",
+              "pattern": "^(\\d+)?,(\\w+)?,(\\w+)?$",
+              "example": "506,MA,US"
+            }
+          }
+        ],
+        "requestBody": {
+          "required": true,
+          "content": {
+            "application/json": {
+              "schema": {
+                "$ref": "#/components/schemas/AdRequest"
+              }
+            }
+          }
+        },
+        "responses": {
+          "200": {
+            "description": "Successful response. The response can still be empty, no error codes will be returned if no ads can be served after being filtered for correctness and being on the block list.",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/AdResponse"
+                }
+              }
+            }
+          },
+          "400": {
+            "description": "Bad Request. Requests are invalid if they contain unsupported placements or request too many ads for a placement."
+          }
+        }
+      }
+    },
+    "/v1/ads-preflight": {
+      "get": {
+        "summary": "Preflight request for OHTTP callers",
+        "description": "This endpoint is used to obtain information that OHTTP callers will need to include in OHTTP requests to the /v1/ads endpoint.",
+        "parameters": [],
+        "responses": {
+          "200": {
+            "description": "Successful response. The response can still be empty, no error codes will be returned if no ads are available for the given device and location.",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/PreflightResponse"
+                }
+              }
+            }
+          },
+          "400": {
+            "description": "Bad Request. Requests are expected to include a User-Agent header."
+          }
+        }
+      }
+    },
+    "/v1/t": {
+      "get": {
+        "summary": "Report ad interaction",
+        "description": "Interaction callback URLs are returned in an ad response. When the corresponding action on the client occurs, those URLs should be fetched.",
+        "parameters": [
+          {
+            "name": "data",
+            "in": "query",
+            "description": "Encoded interaction data",
+            "required": true,
+            "schema": {
+              "type": "string"
+            }
+          },
+          {
+            "name": "placement_id",
+            "in": "query",
+            "description": "Identifier representing the instance of the placement (different identifier than placement from the ad request), used only in special situations.",
+            "required": false,
+            "schema": {
+              "type": "string"
+            }
+          },
+          {
+            "name": "position",
+            "in": "query",
+            "description": "Identifier indicating the position of the placement (optional). May be a string or numeric.  If a numeric index is used it must be 0-based.",
+            "required": false,
+            "schema": {
+              "type": "string"
+            }
+          },
+          {
+            "name": "reason",
+            "in": "query",
+            "description": "Identifier indicating the reason for the ad reporting interaction. Used only for, and required with, the 'report' action.",
+            "required": false,
+            "schema": {
+              "type": "string",
+              "enum": [
+                "inappropriate",
+                "not_interested",
+                "seen_too_many_times"
+              ]
+            }
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "Successful response"
+          }
+        }
+      }
+    },
+    "/v1/log": {
+      "get": {
+        "summary": "Record client events",
+        "description": "This endpoint can be used to persist a prometheus metric.",
+        "parameters": [
+          {
+            "name": "event",
+            "in": "query",
+            "description": "Identifier of the event to capture.",
+            "required": false,
+            "schema": {
+              "type": "string",
+              "enum": [
+                "init",
+                "error"
+              ]
+            }
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "Successful response"
+          },
+          "400": {
+            "description": "Bad Request. Requests are invalid if they contain unsupported or empty events."
+          }
+        }
+      }
+    },
+    "/v1/delete_user": {
+      "delete": {
+        "summary": "Delete user data",
+        "description": "Delete any data persisted associated with a given context_id.",
+        "requestBody": {
+          "required": true,
+          "content": {
+            "application/json": {
+              "schema": {
+                "type": "object",
+                "required": [
+                  "context_id"
+                ],
+                "properties": {
+                  "context_id": {
+                    "type": "string",
+                    "format": "uuid",
+                    "example": "12347fff-00b0-aaaa-0978-189231239808"
+                  }
+                }
+              }
+            }
+          }
+        },
+        "responses": {
+          "200": {
+            "description": "Successfully deleted user data."
+          }
+        }
+      }
+    },
+    "/v1/images": {
+      "get": {
+        "summary": "Get ad image",
+        "description": "Proxies an ad image from an encoded URL. Encoded image URLs are returned in an ad response, calls to this endpoint shouldn't be constructed manually.",
+        "parameters": [
+          {
+            "name": "image_data",
+            "in": "query",
+            "description": "Encoded ad image url",
+            "required": true,
+            "schema": {
+              "type": "string"
+            }
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "Successful response"
+          }
+        }
+      }
+    },
+    "/v1/attribution": {
+      "get": {
+        "summary": "Get attribution reporting configuration",
+        "description": "The attribution reporting configuration is returned for the partner ID specified in the URL.",
+        "parameters": [
+          {
+            "name": "partner_id",
+            "in": "query",
+            "description": "The ID of the partner.",
+            "required": true,
+            "schema": {
+              "type": "string",
+              "format": "uuid"
+            },
+            "example": "295beef7-1e3b-4128-b8f8-858e12aa660b"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "Successful response. Attribution reporting configuration found for the specified partner ID.",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/Task"
+                }
+              }
+            }
+          },
+          "204": {
+            "description": "Not Found. Returned when no attribution reporting configuration is found for the specified partner ID."
+          },
+          "400": {
+            "description": "Bad Request. Requests are invalid if the parameter includes an invalid partner ID query parameter."
+          }
+        }
+      }
+    },
+    "/spocs": {
+      "post": {
+        "operationId": "getSpocs",
+        "summary": "(legacy) Get sponsored content",
+        "description": "Get a list of spocs based on region and pocket_id. The IP address is used to deduce a rough geographic region, for example \"Texas\" in the U.S. or \"England\" in the U.K. The IP is not stored or shared to preserve privacy.",
+        "parameters": [
+          {
+            "in": "query",
+            "name": "site",
+            "schema": {
+              "type": "integer",
+              "format": "int32",
+              "minimum": 1,
+              "maximum": 2147483647
+            },
+            "required": false,
+            "description": "override siteId in ad decision requests",
+            "example": 2500
+          },
+          {
+            "in": "query",
+            "name": "region",
+            "schema": {
+              "type": "string"
+            },
+            "required": false,
+            "description": "override region in keywords of ad decision requests for testing"
+          },
+          {
+            "in": "query",
+            "name": "country",
+            "schema": {
+              "type": "string"
+            },
+            "required": false,
+            "description": "override country in keywords of ad decision requests for testing"
+          }
+        ],
+        "requestBody": {
+          "required": true,
+          "content": {
+            "application/json": {
+              "schema": {
+                "$ref": "#/components/schemas/SpocRequest"
+              },
+              "examples": {
+                "version_one": {
+                  "summary": "Request from client that does not support collections, FireFox version <= 74",
+                  "value": {
+                    "version": 1,
+                    "consumer_key": "40249-e88c401e1b1f2242d9e441c4",
+                    "pocket_id": "{12345678-8901-2345-aaaa-bbbbbbcccccc}"
+                  }
+                },
+                "version_one_collection_req": {
+                  "summary": "Request for collection placements with version=1",
+                  "value": {
+                    "version": 1,
+                    "consumer_key": "40249-e88c401e1b1f2242d9e441c4",
+                    "pocket_id": "{12345678-8901-2345-aaaa-bbbbbbcccccc}",
+                    "placements": [
+                      {
+                        "name": "collections-div",
+                        "ad_types": [
+                          1234
+                        ],
+                        "zone_ids": [
+                          5000
+                        ],
+                        "count": 10
+                      }
+                    ]
+                  }
+                },
+                "version_two_collection_req": {
+                  "summary": "Request for collection placements with version=2",
+                  "value": {
+                    "version": 2,
+                    "consumer_key": "40249-e88c401e1b1f2242d9e441c4",
+                    "pocket_id": "{12345678-8901-2345-aaaa-bbbbbbcccccc}",
+                    "placements": [
+                      {
+                        "name": "collections-div",
+                        "ad_types": [
+                          1234
+                        ],
+                        "zone_ids": [
+                          5000
+                        ],
+                        "count": 10
+                      }
+                    ]
+                  }
+                }
+              }
+            }
+          }
+        },
+        "responses": {
+          "200": {
+            "description": "Responds with settings and a list of spocs.",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "type": "object",
+                  "additionalProperties": {
+                    "$ref": "#/components/schemas/SpocFeed"
+                  },
+                  "properties": {
+                    "settings": {
+                      "$ref": "#/components/schemas/Settings"
+                    },
+                    "__debug__": {
+                      "description": "Informational object returned in non-prod environments",
+                      "type": "object",
+                      "additionalProperties": true
+                    }
+                  }
+                }
+              }
+            }
+          }
+        }
+      }
+    },
+    "/user": {
+      "delete": {
+        "operationId": "deleteUser",
+        "summary": "(legacy) Delete a user's personal data",
+        "description": "Used when a user opts-out of sponsored content to delete the user's data.",
+        "requestBody": {
+          "required": true,
+          "content": {
+            "application/json": {
+              "schema": {
+                "type": "object",
+                "required": [
+                  "pocket_id"
+                ],
+                "properties": {
+                  "pocket_id": {
+                    "description": "ID that uniquely identifies a session.",
+                    "example": "{12345678-8901-2345-aaaa-bbbbbbcccccc}",
+                    "type": "string"
+                  }
+                }
+              }
+            }
+          }
+        },
+        "responses": {
+          "200": {
+            "description": "Successfully deleted user data."
+          }
+        }
+      }
+    },
+    "/v1/tiles": {
+      "get": {
+        "operationId": "getTiles",
+        "summary": "(legacy) Get tiles",
+        "responses": {
+          "200": {
+            "description": "Get a list of tiles based on region. The IP address is used to deduce a rough geographic region, for example \"Texas\" in the U.S. or \"England\" in the U.K.",
+            "headers": {
+              "cache-control": {
+                "schema": {
+                  "type": "string"
+                },
+                "description": "indicates tiles valid duration."
+              }
+            },
+            "content": {
+              "application/json": {
+                "schema": {
+                  "type": "object",
+                  "properties": {
+                    "tiles": {
+                      "type": "array",
+                      "items": {
+                        "$ref": "#/components/schemas/LegacyTile"
+                      }
+                    },
+                    "sov": {
+                      "type": "string",
+                      "description": "SoV configuration",
+                      "example": "kdfsi90wfglmnds"
+                    }
+                  }
+                }
+              }
+            }
+          },
+          "204": {
+            "description": "No tiles available"
+          },
+          "403": {
+            "description": "Tiles service is for Firefox only"
+          }
+        }
+      }
+    }
+  },
+  "components": {
+    "schemas": {
+      "SpocRequest": {
+        "type": "object",
+        "required": [
+          "version",
+          "consumer_key",
+          "pocket_id"
+        ],
+        "additionalProperties": false,
+        "properties": {
+          "version": {
+            "type": "integer",
+            "description": "API version",
+            "format": "int32",
+            "minimum": 1,
+            "maximum": 2,
+            "example": 2
+          },
+          "consumer_key": {
+            "type": "string",
+            "description": "Identifies that the request is coming from Firefox.",
+            "example": "40249-e88c401e1b1f2242d9e441c4"
+          },
+          "pocket_id": {
+            "type": "string",
+            "description": "ID that uniquely identifies a session.",
+            "example": "{12345678-8901-2345-aaaa-bbbbbbcccccc}",
+            "pattern": "^\\{[0-9a-f]{8}-([0-9a-f]{4}-){3}[0-9a-f]{12}\\}$"
+          },
+          "placements": {
+            "type": "array",
+            "items": {
+              "$ref": "#/components/schemas/Placement"
+            }
+          },
+          "site": {
+            "type": "integer",
+            "format": "int32",
+            "minimum": 1,
+            "maximum": 2147483647,
+            "description": "override siteId in ad decision requests",
+            "example": 2500
+          },
+          "country": {
+            "type": "string",
+            "description": "override country in keywords of ad decision requests for testing"
+          },
+          "region": {
+            "type": "string",
+            "description": "override region in keywords of ad decision requests for testing"
+          }
+        }
+      },
+      "Placement": {
+        "type": "object",
+        "description": "Placement describes parameters for a set of ads to return",
+        "required": [
+          "name"
+        ],
+        "additionalProperties": false,
+        "properties": {
+          "name": {
+            "type": "string",
+            "example": "spocs",
+            "description": "Corresponds to the key in the response object."
+          },
+          "ad_types": {
+            "type": "array",
+            "description": "IDs of Ad Types, indicating the size & dimensions of the ads to return.",
+            "items": {
+              "type": "integer",
+              "format": "int32",
+              "example": 1234,
+              "minimum": 1,
+              "maximum": 2147483647
+            }
+          },
+          "zone_ids": {
+            "type": "array",
+            "description": "ID of Zones, indicating what area these ads will be shown.",
+            "items": {
+              "type": "integer",
+              "format": "int32",
+              "example": 123456,
+              "minimum": 1,
+              "maximum": 2147483647
+            }
+          },
+          "count": {
+            "type": "integer",
+            "example": 20,
+            "minimum": 1,
+            "maximum": 20,
+            "description": "number of ads to return for this placement"
+          }
+        }
+      },
+      "Settings": {
+        "type": "object",
+        "additionalProperties": false,
+        "required": [
+          "feature_flags",
+          "spocsPerNewTabs",
+          "domainAffinityParameterSets",
+          "timeSegments"
+        ],
+        "properties": {
+          "spocsPerNewTabs": {
+            "type": "integer",
+            "minimum": 1,
+            "example": 1
+          },
+          "domainAffinityParameterSets": {
+            "type": "object",
+            "additionalProperties": {
+              "$ref": "#/components/schemas/DomainAffinityParameterSet"
+            }
+          },
+          "timeSegments": {
+            "type": "array",
+            "items": {
+              "$ref": "#/components/schemas/TimeSegment"
+            }
+          },
+          "feature_flags": {
+            "type": "object",
+            "$ref": "#/components/schemas/FeatureFlags"
+          }
+        }
+      },
+      "FeatureFlags": {
+        "type": "object",
+        "additionalProperties": false,
+        "required": [
+          "spoc_v2",
+          "collections"
+        ],
+        "properties": {
+          "spoc_v2": {
+            "type": "boolean"
+          },
+          "collections": {
+            "type": "boolean"
+          }
+        }
+      },
+      "DomainAffinityParameterSet": {
+        "type": "object",
+        "additionalProperties": false,
+        "required": [
+          "recencyFactor",
+          "frequencyFactor",
+          "combinedDomainFactor",
+          "perfectCombinedDomainScore",
+          "multiDomainBoost",
+          "itemScoreFactor"
+        ],
+        "properties": {
+          "recencyFactor": {
+            "type": "number"
+          },
+          "frequencyFactor": {
+            "type": "number"
+          },
+          "combinedDomainFactor": {
+            "type": "number"
+          },
+          "perfectFrequencyVisits": {
+            "type": "number"
+          },
+          "perfectCombinedDomainScore": {
+            "type": "number"
+          },
+          "multiDomainBoost": {
+            "type": "number"
+          },
+          "itemScoreFactor": {
+            "type": "number"
+          }
+        }
+      },
+      "TimeSegment": {
+        "type": "object",
+        "additionalProperties": false,
+        "required": [
+          "id",
+          "startTime",
+          "endTime",
+          "weightPosition"
+        ],
+        "properties": {
+          "id": {
+            "type": "string"
+          },
+          "startTime": {
+            "type": "integer"
+          },
+          "endTime": {
+            "type": "integer"
+          },
+          "weightPosition": {
+            "example": 1
+          }
+        }
+      },
+      "SpocFeed": {
+        "oneOf": [
+          {
+            "type": "array",
+            "items": {
+              "$ref": "#/components/schemas/SpocFeedItem"
+            }
+          },
+          {
+            "type": "object",
+            "additionalProperties": false,
+            "required": [
+              "title",
+              "flight_id"
+            ],
+            "properties": {
+              "title": {
+                "type": "string",
+                "example": "Best of the Web"
+              },
+              "flight_id": {
+                "type": "integer",
+                "example": 4321
+              },
+              "sponsor": {
+                "type": "string",
+                "example": "AdvertiserName"
+              },
+              "context": {
+                "type": "string",
+                "example": "Sponsored by AdvertiserName"
+              },
+              "items": {
+                "type": "array",
+                "items": {
+                  "$ref": "#/components/schemas/SpocFeedItem"
+                }
+              }
+            }
+          }
+        ]
+      },
+      "Shim": {
+        "type": "object",
+        "additionalProperties": false,
+        "properties": {
+          "click": {
+            "type": "string",
+            "example": "1234123asdf4tYadsfQ,xY-01BU12"
+          },
+          "impression": {
+            "type": "string",
+            "example": "a0c3943asdf4tYadsf300,xY-01BU9aadc"
+          },
+          "delete": {
+            "type": "string",
+            "example": "fdea123asdf4tYadsf1000,xY-01BUa654"
+          },
+          "save": {
+            "type": "string",
+            "example": "4567123asdf4tYadsfQcda,xY-01BU123"
+          }
+        }
+      },
+      "Caps": {
+        "type": "object",
+        "additionalProperties": false,
+        "required": [
+          "lifetime",
+          "flight",
+          "campaign"
+        ],
+        "properties": {
+          "lifetime": {
+            "type": "integer",
+            "example": 50
+          },
+          "flight": {
+            "type": "object",
+            "additionalProperties": false,
+            "required": [
+              "count",
+              "period"
+            ],
+            "properties": {
+              "count": {
+                "type": "integer",
+                "example": 10
+              },
+              "period": {
+                "type": "integer",
+                "description": "Period in seconds",
+                "example": 86400
+              }
+            }
+          },
+          "campaign": {
+            "type": "object",
+            "additionalProperties": false,
+            "required": [
+              "count",
+              "period"
+            ],
+            "properties": {
+              "count": {
+                "type": "integer",
+                "example": 10
+              },
+              "period": {
+                "type": "integer",
+                "description": "Period in seconds",
+                "example": 86400
+              }
+            }
+          }
+        }
+      },
+      "SpocFeedItem": {
+        "type": "object",
+        "additionalProperties": false,
+        "properties": {
+          "campaign_id": {
+            "type": "integer",
+            "example": 784
+          },
+          "caps": {
+            "type": "object",
+            "$ref": "#/components/schemas/Caps"
+          },
+          "collection_title": {
+            "type": "string",
+            "description": "Shared title if all ads are one collection"
+          },
+          "context": {
+            "type": "string",
+            "description": "Deprecated. Use sponsor field instead.",
+            "example": "Sponsored by AdvertiserName"
+          },
+          "cta": {
+            "type": "string",
+            "description": "Text to display on CTA button",
+            "example": "Learn more"
+          },
+          "domain": {
+            "type": "string",
+            "example": "mozilla.net"
+          },
+          "domain_affinities": {
+            "type": "object",
+            "additionalProperties": {
+              "type": "number"
+            },
+            "example": {
+              "vanguard.com": 0.9956,
+              "wealthsimple.com": 0.9193
+            }
+          },
+          "excerpt": {
+            "type": "string",
+            "example": "Driving excerpt"
+          },
+          "flight_id": {
+            "type": "integer",
+            "example": 432
+          },
+          "id": {
+            "type": "integer",
+            "example": 30295
+          },
+          "image_src": {
+            "type": "string",
+            "example": "https://img-getpocket.cdn.mozilla.net/ad.gif"
+          },
+          "is_video": {
+            "type": "boolean"
+          },
+          "item_score": {
+            "type": "number",
+            "format": "float",
+            "example": 0.2
+          },
+          "min_score": {
+            "type": "number",
+            "format": "float",
+            "example": 0.1
+          },
+          "parameter_set": {
+            "type": "string",
+            "example": "default"
+          },
+          "personalization_models": {
+            "type": "object",
+            "additionalProperties": true
+          },
+          "priority": {
+            "type": "integer",
+            "description": "The priority order. 1-100, 1 is highest priority.",
+            "minimum": 1,
+            "maximum": 100
+          },
+          "raw_image_src": {
+            "type": "string",
+            "example": "https://mozilla.net/ad.gif"
+          },
+          "shim": {
+            "type": "object",
+            "$ref": "#/components/schemas/Shim"
+          },
+          "sponsor": {
+            "type": "string",
+            "example": "AdvertiserName"
+          },
+          "sponsored_by_override": {
+            "type": "string",
+            "example": "AdvertiserName"
+          },
+          "title": {
+            "type": "string",
+            "example": "Why driving is hard—even for AIs"
+          },
+          "url": {
+            "type": "string",
+            "example": "http://mozilla.net/page"
+          }
+        }
+      },
+      "LegacyTile": {
+        "type": "object",
+        "description": "tile format",
+        "required": [
+          "id",
+          "name",
+          "url",
+          "click_url",
+          "image_url",
+          "image_size",
+          "impression_url"
+        ],
+        "additionalProperties": false,
+        "properties": {
+          "id": {
+            "type": "integer",
+            "format": "int32",
+            "example": 1234,
+            "description": "Partner specific id for ad",
+            "minimum": 1,
+            "maximum": 2147483647
+          },
+          "name": {
+            "type": "string",
+            "example": "Example COM",
+            "description": "Advertiser name"
+          },
+          "url": {
+            "type": "string",
+            "example": "https://www.example.com/desktop_macos",
+            "description": "Advertiser URL"
+          },
+          "click_url": {
+            "type": "string",
+            "example": "https://example.com/desktop_macos?version=16.0.0&key=22.1&ci=6.2&ctag=1612376952400200000",
+            "description": "Click counting URL"
+          },
+          "image_url": {
+            "type": "string",
+            "example": "https://example.com/desktop_macos01.jpg",
+            "description": "Ad image"
+          },
+          "image_size": {
+            "type": "integer",
+            "nullable": true,
+            "format": "int32",
+            "example": 200,
+            "description": "Image size"
+          },
+          "impression_url": {
+            "type": "string",
+            "example": "https://example.com/desktop_macos?id=0001",
+            "description": "Impression counting URL"
+          }
+        }
+      },
+      "AdPlacement": {
+        "type": "object",
+        "properties": {
+          "placement": {
+            "type": "string",
+            "example": "placement_1",
+            "description": "Specifies the placement location of the ad. Values will be Mozilla supplied and specific to the integration."
+          },
+          "count": {
+            "type": "integer",
+            "format": "int32",
+            "default": 1,
+            "minimum": 1,
+            "maximum": 20,
+            "description": "The number of ads to be placed in the specified location."
+          },
+          "content": {
+            "type": "object",
+            "$ref": "#/components/schemas/AdContent"
+          }
+        },
+        "required": [
+          "placement"
+        ]
+      },
+      "AdRequest": {
+        "type": "object",
+        "properties": {
+          "context_id": {
+            "type": "string",
+            "format": "uuid",
+            "example": "12347fff-00b0-aaaa-0978-189231239808",
+            "description": "An identifier for the user's context."
+          },
+          "placements": {
+            "type": "array",
+            "items": {
+              "$ref": "#/components/schemas/AdPlacement"
+            },
+            "minItems": 1,
+            "description": "A list of `AdPlacement` objects, specifying where ads should be placed."
+          },
+          "blocks": {
+            "type": "array",
+            "items": {
+              "type": "string"
+            },
+            "example": [
+              "CAISEm15IHNwZWNpYWwgc3BvbnNvcg"
+            ],
+            "description": "A list of strings specifying blocked content. The string values come from the `block_key` field in returned ads."
+          },
+          "consent": {
+            "type": "object",
+            "$ref": "#/components/schemas/Consent"
+          }
+        },
+        "required": [
+          "context_id",
+          "placements"
+        ]
+      },
+      "AdContent": {
+        "type": "object",
+        "properties": {
+          "taxonomy": {
+            "type": "string",
+            "enum": [
+              "IAB-1.0",
+              "IAB-2.0",
+              "IAB-2.1",
+              "IAB-2.2",
+              "IAB-3.0"
+            ],
+            "description": "A valid taxonomy identifier recognized by MARS",
+            "example": "IAB-1.0"
+          },
+          "categories": {
+            "type": "array",
+            "items": {
+              "type": "string"
+            },
+            "minItems": 1,
+            "example": [
+              "IAB1-5"
+            ]
+          }
+        },
+        "required": [
+          "taxonomy",
+          "categories"
+        ]
+      },
+      "Consent": {
+        "type": "object",
+        "description": "An object to specify consent specifiers for this request",
+        "properties": {
+          "gpp": {
+            "type": "string",
+            "description": "Global Privacy Platform consent string"
+          }
+        }
+      },
+      "AdCallbacks": {
+        "type": "object",
+        "description": "An object containing callback URLs for interactions with an ad.",
+        "properties": {
+          "click": {
+            "type": "string",
+            "description": "This URL should be requested with an HTTP GET when the ad is clicked. Response should be ignored."
+          },
+          "impression": {
+            "type": "string",
+            "description": "This URL should be requested with an HTTP GET when half of the ad is visible in the viewport for 1 second. If the ad's pixel size is greater that 242500 (970 * 250) only 30% visibility is required. Response should be ignored."
+          },
+          "report": {
+            "type": "string",
+            "description": "This URL may be issued by a client on behalf of a user to report an ad that is inappropriate or otherwise unsatisfying. Response should be ignored. The reason parameter is required with this action."
+          }
+        }
+      },
+      "Attributions": {
+        "type": "object",
+        "description": "An object containing attribution configuration for enabled ads.",
+        "properties": {
+          "partner_id": {
+            "type": "string",
+            "format": "uuid",
+            "description": "Advertising partner associated with the ad."
+          },
+          "index": {
+            "type": "number",
+            "description": "Index allocated to be used when a non-default report is sent."
+          }
+        },
+        "required": [
+          "partner_id",
+          "index"
+        ]
+      },
+      "Task": {
+        "type": "object",
+        "properties": {
+          "task_id": {
+            "type": "string",
+            "description": "DAP task ID.",
+            "example": "pL9iVhsLWNFb_W044YEbdOYC5y5_RZlPJZovrlk-8Vs"
+          },
+          "vdaf": {
+            "type": "string",
+            "description": "DAP data type of the task.",
+            "example": "histogram"
+          },
+          "bits": {
+            "type": "number",
+            "description": "DAP data size of the task"
+          },
+          "length": {
+            "type": "number",
+            "description": "DAP legnth of the task.",
+            "example": 10
+          },
+          "time_precision": {
+            "type": "number",
+            "description": "DAP time precision. Determines rounding of dates in DAP report.",
+            "example": 3600
+          },
+          "default_measurement": {
+            "type": "number",
+            "description": "Measurement to be used when a default report is sent.",
+            "example": 0
+          }
+        },
+        "required": [
+          "task_id",
+          "vdaf",
+          "length",
+          "time_precision"
+        ]
+      },
+      "AdFormatBase": {
+        "type": "object",
+        "properties": {
+          "url": {
+            "type": "string",
+            "description": "The target destination URL of the ad."
+          },
+          "callbacks": {
+            "$ref": "#/components/schemas/AdCallbacks"
+          },
+          "attributions": {
+            "$ref": "#/components/schemas/Attributions"
+          }
+        },
+        "required": [
+          "url",
+          "callbacks"
+        ]
+      },
+      "SpocFrequencyCaps": {
+        "type": "object",
+        "description": "Client-side enforced frequency capping information.",
+        "properties": {
+          "cap_key": {
+            "type": "string",
+            "description": "A key that identifies the frequency cap.",
+            "example": 345678901
+          },
+          "day": {
+            "type": "integer",
+            "format": "int32",
+            "description": "Number of times to show the same ad during a one day period.",
+            "example": 10
+          }
+        },
+        "required": [
+          "cap_key",
+          "day"
+        ]
+      },
+      "SpocRanking": {
+        "type": "object",
+        "description": "Ranking information for personalized content.",
+        "properties": {
+          "priority": {
+            "type": "integer",
+            "format": "int32",
+            "description": "The priority in the ranking. Reranking of ads should prefer priority before personalization.",
+            "example": 1
+          },
+          "personalization_models": {
+            "type": "object",
+            "additionalProperties": {
+              "type": "integer",
+              "format": "int32"
+            },
+            "description": "A map of model names to scores for personalization.",
+            "example": {
+              "arts_and_entertainment": 1,
+              "autos_and_vehicles": 1
+            }
+          },
+          "item_score": {
+            "type": "number",
+            "format": "float",
+            "description": "The overall score for the item.",
+            "example": 0.2
+          }
+        },
+        "required": [
+          "priority",
+          "item_score"
+        ]
+      },
+      "Image": {
+        "allOf": [
+          {
+            "$ref": "#/components/schemas/AdFormatBase"
+          },
+          {
+            "type": "object",
+            "properties": {
+              "format": {
+                "type": "string",
+                "description": "The format of the ad, indicating it is an image ad of a specific size. Values include `rectangle`, `billboard`, `skyscraper`, `leaderboard`.",
+                "example": "rectangle"
+              },
+              "image_url": {
+                "type": "string",
+                "description": "URL of the ad image."
+              },
+              "alt_text": {
+                "type": "string",
+                "description": "Alt text to describe the ad image.",
+                "example": "ACME Corp. Spring Launcher"
+              },
+              "block_key": {
+                "type": "string",
+                "description": "The block key generated for the advertiser.",
+                "example": "CAISEm15IHNwZWNpYWwgc3BvbnNvcg"
+              }
+            },
+            "required": [
+              "format",
+              "image_url",
+              "block_key"
+            ]
+          }
+        ]
+      },
+      "Spoc": {
+        "allOf": [
+          {
+            "$ref": "#/components/schemas/AdFormatBase"
+          },
+          {
+            "type": "object",
+            "properties": {
+              "format": {
+                "type": "string",
+                "description": "The format of the ad, `spoc`.",
+                "example": "spoc"
+              },
+              "image_url": {
+                "type": "string",
+                "description": "URL of the ad image."
+              },
+              "title": {
+                "type": "string",
+                "description": "Title of the sponsored content.",
+                "example": "Good news everyone!"
+              },
+              "domain": {
+                "type": "string",
+                "description": "The domain where the content is hosted.",
+                "example": "example.com"
+              },
+              "excerpt": {
+                "type": "string",
+                "description": "A short excerpt from the sponsored content.",
+                "example": "Read more about this..."
+              },
+              "sponsor": {
+                "type": "string",
+                "description": "The name of the sponsor.",
+                "example": "ACME Corp"
+              },
+              "sponsored_by_override": {
+                "type": "string",
+                "description": "An optional override for the sponsor name.",
+                "example": "Organized by ACME Corp"
+              },
+              "block_key": {
+                "type": "string",
+                "description": "The block key generated for the advertiser.",
+                "example": "CAISEm15IHNwZWNpYWwgc3BvbnNvcg"
+              },
+              "caps": {
+                "$ref": "#/components/schemas/SpocFrequencyCaps"
+              },
+              "ranking": {
+                "$ref": "#/components/schemas/SpocRanking"
+              }
+            },
+            "required": [
+              "format",
+              "image_url",
+              "title",
+              "domain",
+              "excerpt",
+              "sponsor",
+              "block_key",
+              "caps",
+              "ranking"
+            ]
+          }
+        ]
+      },
+      "Tile": {
+        "allOf": [
+          {
+            "$ref": "#/components/schemas/AdFormatBase"
+          },
+          {
+            "type": "object",
+            "properties": {
+              "format": {
+                "type": "string",
+                "description": "The format of the ad, `tile`.",
+                "example": "tile"
+              },
+              "image_url": {
+                "type": "string",
+                "description": "URL of the ad image."
+              },
+              "name": {
+                "type": "string",
+                "description": "The name displayed under the tile.",
+                "example": "Amazon"
+              },
+              "block_key": {
+                "type": "string",
+                "description": "The block key generated for the advertiser.",
+                "example": "CAISEm15IHNwZWNpYWwgc3BvbnNvcg"
+              }
+            },
+            "required": [
+              "format",
+              "image_url",
+              "name",
+              "block_key"
+            ]
+          }
+        ]
+      },
+      "AdResponse": {
+        "type": "object",
+        "additionalProperties": {
+          "type": "array",
+          "items": {
+            "anyOf": [
+              {
+                "$ref": "#/components/schemas/Image"
+              },
+              {
+                "$ref": "#/components/schemas/Spoc"
+              },
+              {
+                "$ref": "#/components/schemas/Tile"
+              }
+            ]
+          }
+        }
+      },
+      "TelemetryResponse": {
+        "type": "object",
+        "description": "An empty response object"
+      },
+      "PreflightResponse": {
+        "type": "object",
+        "properties": {
+          "geoname_id": {
+            "type": "string",
+            "pattern": "^\\s*\\d+\\s*(,\\s*\\d+\\s*)*$",
+            "description": "A comma delimited list of geoname IDs representing the caller's location, based on their IP address. The first member of the list is the most specific location, with subsequent members being less specific locations.",
+            "example": "6077243,6252001"
+          },
+          "geo_location": {
+            "type": "string",
+            "pattern": "^(\\d+)?,(\\w+)?,(\\w+)?$",
+            "description": "A structured representation of the caller's location, based on their IP address.",
+            "example": "506,MA,US"
+          },
+          "normalized_ua": {
+            "type": "string",
+            "description": "A user agent string that will be similar to the caller's user agent string in characteristics, but will have some data normalized to make it less unique."
+          }
+        },
+        "required": [
+          "geoname_id",
+          "geo_location"
+        ]
+      }
+    }
+  }
+}
\ No newline at end of file
diff --git a/components/ads-client/src/client/ad_request.rs b/components/ads-client/src/client/ad_request.rs
index 031406d2cd..1ba5e2cffd 100644
--- a/components/ads-client/src/client/ad_request.rs
+++ b/components/ads-client/src/client/ad_request.rs
@@ -84,6 +84,7 @@ impl AdRequest {
 pub struct AdPlacementRequest {
     pub placement: String,
     pub count: u32,
+    #[serde(skip_serializing_if = "Option::is_none")]
     pub content: Option<AdContentCategory>,
 }
 
@@ -274,6 +275,90 @@ mod tests {
         assert_eq!(RequestHash::new(&req1), RequestHash::new(&req2));
     }
 
+    /// Validate serialized requests against the MARS OpenAPI spec.
+    mod contract {
+        use super::*;
+        use crate::test_utils::{mars_schema, validate_against_mars_schema};
+        use serde_json::to_value;
+
+        fn ad_request_schema() -> serde_json::Value {
+            mars_schema("AdRequest")
+        }
+
+        #[test]
+        fn test_minimal_request_validates_against_spec() {
+            let url: Url = "https://ads.mozilla.org/v1/ads".parse().unwrap();
+            let request = AdRequest::try_new(
+                "decafbad-0cd1-0cd2-0cd3-decafbad1000".to_string(),
+                vec![AdPlacementRequest {
+                    placement: "newtab_tile_1".to_string(),
+                    count: 1,
+                    content: None,
+                }],
+                url,
+            )
+            .unwrap();
+
+            validate_against_mars_schema(&ad_request_schema(), &to_value(&request).unwrap());
+        }
+
+        #[test]
+        fn test_full_request_with_content_validates_against_spec() {
+            let url: Url = "https://ads.mozilla.org/v1/ads".parse().unwrap();
+            let request = AdRequest::try_new(
+                "decafbad-0cd1-0cd2-0cd3-decafbad1000".to_string(),
+                vec![
+                    AdPlacementRequest {
+                        placement: "newtab_tile_1".to_string(),
+                        count: 2,
+                        content: Some(AdContentCategory {
+                            taxonomy: IABContentTaxonomy::IAB2_1,
+                            categories: vec!["technology".to_string()],
+                        }),
+                    },
+                    AdPlacementRequest {
+                        placement: "pocket_billboard".to_string(),
+                        count: 1,
+                        content: None,
+                    },
+                ],
+                url,
+            )
+            .unwrap();
+
+            validate_against_mars_schema(&ad_request_schema(), &to_value(&request).unwrap());
+        }
+
+        #[test]
+        fn test_all_taxonomy_variants_validate_against_spec() {
+            let schema = ad_request_schema();
+            let url: Url = "https://ads.mozilla.org/v1/ads".parse().unwrap();
+
+            for taxonomy in [
+                IABContentTaxonomy::IAB1_0,
+                IABContentTaxonomy::IAB2_0,
+                IABContentTaxonomy::IAB2_1,
+                IABContentTaxonomy::IAB2_2,
+                IABContentTaxonomy::IAB3_0,
+            ] {
+                let request = AdRequest::try_new(
+                    "decafbad-0cd1-0cd2-0cd3-decafbad1000".to_string(),
+                    vec![AdPlacementRequest {
+                        placement: "test".to_string(),
+                        count: 1,
+                        content: Some(AdContentCategory {
+                            taxonomy,
+                            categories: vec!["cat".to_string()],
+                        }),
+                    }],
+                    url.clone(),
+                )
+                .unwrap();
+                validate_against_mars_schema(&schema, &to_value(&request).unwrap());
+            }
+        }
+    }
+
     #[test]
     fn test_different_placements_produce_different_hash() {
         use crate::http_cache::RequestHash;
diff --git a/components/ads-client/src/client/ad_response.rs b/components/ads-client/src/client/ad_response.rs
index 8cf72206fc..06cd7f3ab9 100644
--- a/components/ads-client/src/client/ad_response.rs
+++ b/components/ads-client/src/client/ad_response.rs
@@ -469,6 +469,176 @@ mod tests {
             .contains("request_hash=abc123def456"));
     }
 
+    /// Validate fixtures against the MARS OpenAPI spec, then deserialize into our types.
+    mod contract {
+        use super::*;
+        use crate::test_utils::{mars_schema, validate_against_mars_schema};
+        use serde_json::json;
+
+        #[test]
+        fn test_image_full_validates_and_deserializes() {
+            let schema = mars_schema("Image");
+            let fixture = json!({
+                "url": "https://example.com/landing",
+                "callbacks": {
+                    "click": "https://ads.mozilla.org/v1/t?click",
+                    "impression": "https://ads.mozilla.org/v1/t?impression",
+                    "report": "https://ads.mozilla.org/v1/t?report"
+                },
+                "format": "billboard",
+                "image_url": "https://example.com/image.png",
+                "alt_text": "Example ad",
+                "block_key": "block-abc-123"
+            });
+            validate_against_mars_schema(&schema, &fixture);
+            serde_json::from_value::<AdImage>(fixture)
+                .expect("Image should deserialize from spec JSON");
+        }
+
+        #[test]
+        fn test_image_minimal_validates_and_deserializes() {
+            let schema = mars_schema("Image");
+            let fixture = json!({
+                "url": "https://example.com/landing",
+                "callbacks": {
+                    "click": "https://ads.mozilla.org/v1/t?click",
+                    "impression": "https://ads.mozilla.org/v1/t?impression"
+                },
+                "format": "rectangle",
+                "image_url": "https://example.com/image.png",
+                "block_key": "block-abc-123"
+            });
+            validate_against_mars_schema(&schema, &fixture);
+            serde_json::from_value::<AdImage>(fixture)
+                .expect("Image should deserialize without optional fields");
+        }
+
+        // Spec marks click/impression as optional; we require them so ads
+        // without callbacks are dropped during deserialization.
+        #[test]
+        fn test_image_missing_click_is_spec_valid_but_fails_our_deserialization() {
+            let schema = mars_schema("Image");
+            let fixture = json!({
+                "url": "https://example.com/landing",
+                "callbacks": { "impression": "https://ads.mozilla.org/v1/t?impression" },
+                "format": "rectangle",
+                "image_url": "https://example.com/image.png",
+                "block_key": "block-abc-123"
+            });
+            validate_against_mars_schema(&schema, &fixture);
+            assert!(serde_json::from_value::<AdImage>(fixture).is_err());
+        }
+
+        #[test]
+        fn test_image_missing_impression_is_spec_valid_but_fails_our_deserialization() {
+            let schema = mars_schema("Image");
+            let fixture = json!({
+                "url": "https://example.com/landing",
+                "callbacks": { "click": "https://ads.mozilla.org/v1/t?click" },
+                "format": "rectangle",
+                "image_url": "https://example.com/image.png",
+                "block_key": "block-abc-123"
+            });
+            validate_against_mars_schema(&schema, &fixture);
+            assert!(serde_json::from_value::<AdImage>(fixture).is_err());
+        }
+
+        // We don't model attributions; serde ignores unknown fields.
+        #[test]
+        fn test_image_with_attributions_validates_and_deserializes() {
+            let schema = mars_schema("Image");
+            let fixture = json!({
+                "url": "https://example.com/landing",
+                "callbacks": {
+                    "click": "https://ads.mozilla.org/v1/t?click",
+                    "impression": "https://ads.mozilla.org/v1/t?impression"
+                },
+                "format": "billboard",
+                "image_url": "https://example.com/image.png",
+                "block_key": "block-abc-123",
+                "attributions": {
+                    "partner_id": "00000000-0000-0000-0000-000000000001",
+                    "index": 0
+                }
+            });
+            validate_against_mars_schema(&schema, &fixture);
+            serde_json::from_value::<AdImage>(fixture)
+                .expect("attributions field should be ignored");
+        }
+
+        #[test]
+        fn test_spoc_full_validates_and_deserializes() {
+            let schema = mars_schema("Spoc");
+            let fixture = json!({
+                "url": "https://example.com/article",
+                "callbacks": {
+                    "click": "https://ads.mozilla.org/v1/t?click",
+                    "impression": "https://ads.mozilla.org/v1/t?impression"
+                },
+                "format": "spoc",
+                "image_url": "https://example.com/image.png",
+                "title": "Sponsored article title",
+                "domain": "example.com",
+                "excerpt": "A short excerpt of the sponsored content.",
+                "sponsor": "Example Sponsor",
+                "sponsored_by_override": "Override text",
+                "block_key": "block-spoc-123",
+                "caps": { "cap_key": "example-cap", "day": 3 },
+                "ranking": {
+                    "priority": 1,
+                    "personalization_models": { "model_a": 42 },
+                    "item_score": 0.95
+                }
+            });
+            validate_against_mars_schema(&schema, &fixture);
+            serde_json::from_value::<AdSpoc>(fixture)
+                .expect("Spoc should deserialize from spec JSON");
+        }
+
+        #[test]
+        fn test_spoc_minimal_validates_and_deserializes() {
+            let schema = mars_schema("Spoc");
+            let fixture = json!({
+                "url": "https://example.com/article",
+                "callbacks": {
+                    "click": "https://ads.mozilla.org/v1/t?click",
+                    "impression": "https://ads.mozilla.org/v1/t?impression"
+                },
+                "format": "spoc",
+                "image_url": "https://example.com/image.png",
+                "title": "Sponsored article title",
+                "domain": "example.com",
+                "excerpt": "A short excerpt.",
+                "sponsor": "Example Sponsor",
+                "block_key": "block-spoc-123",
+                "caps": { "cap_key": "example-cap", "day": 3 },
+                "ranking": { "priority": 1, "item_score": 0.5 }
+            });
+            validate_against_mars_schema(&schema, &fixture);
+            serde_json::from_value::<AdSpoc>(fixture)
+                .expect("Spoc should deserialize without optional fields");
+        }
+
+        #[test]
+        fn test_tile_validates_and_deserializes() {
+            let schema = mars_schema("Tile");
+            let fixture = json!({
+                "url": "https://example.com",
+                "callbacks": {
+                    "click": "https://ads.mozilla.org/v1/t?click",
+                    "impression": "https://ads.mozilla.org/v1/t?impression"
+                },
+                "format": "tile",
+                "image_url": "https://example.com/logo.png",
+                "name": "Example Site",
+                "block_key": "block-tile-123"
+            });
+            validate_against_mars_schema(&schema, &fixture);
+            serde_json::from_value::<AdTile>(fixture)
+                .expect("Tile should deserialize from spec JSON");
+        }
+    }
+
     #[test]
     fn test_pop_request_hash_from_url() {
         let mut url_with_hash =
diff --git a/components/ads-client/src/test_utils.rs b/components/ads-client/src/test_utils.rs
index 6e5407da66..5669058e74 100644
--- a/components/ads-client/src/test_utils.rs
+++ b/components/ads-client/src/test_utils.rs
@@ -14,6 +14,54 @@ use crate::client::{
     },
 };
 
+const OPENAPI_JSON: &str = include_str!("../openapi.json");
+
+/// Load a named schema from the MARS OpenAPI spec with `$ref` pointers resolved.
+pub fn mars_schema(name: &str) -> serde_json::Value {
+    let root: serde_json::Value =
+        serde_json::from_str(OPENAPI_JSON).expect("openapi.json should parse");
+    let schema = root["components"]["schemas"][name].clone();
+    assert!(
+        !schema.is_null(),
+        "Schema '{name}' not found in openapi.json"
+    );
+    resolve_refs(&schema, &root)
+}
+
+pub fn validate_against_mars_schema(schema: &serde_json::Value, instance: &serde_json::Value) {
+    let validator = jsonschema::validator_for(schema).expect("schema should compile");
+    if let Err(e) = validator.validate(instance) {
+        panic!(
+            "JSON Schema validation failed:\n  {e}\nInstance:\n{}",
+            serde_json::to_string_pretty(instance).unwrap()
+        );
+    }
+}
+
+fn resolve_refs(value: &serde_json::Value, root: &serde_json::Value) -> serde_json::Value {
+    match value {
+        serde_json::Value::Object(map) => {
+            if let Some(serde_json::Value::String(ref_path)) = map.get("$ref") {
+                let pointer = ref_path.trim_start_matches('#');
+                let resolved = root
+                    .pointer(pointer)
+                    .unwrap_or_else(|| panic!("$ref '{ref_path}' not found in openapi.json"));
+                resolve_refs(resolved, root)
+            } else {
+                let new_map: serde_json::Map<String, serde_json::Value> = map
+                    .iter()
+                    .map(|(k, v)| (k.clone(), resolve_refs(v, root)))
+                    .collect();
+                serde_json::Value::Object(new_map)
+            }
+        }
+        serde_json::Value::Array(arr) => {
+            serde_json::Value::Array(arr.iter().map(|v| resolve_refs(v, root)).collect())
+        }
+        other => other.clone(),
+    }
+}
+
 pub const TEST_CONTEXT_ID: &str = "00000000-0000-4000-8000-000000000001";
 
 pub fn make_happy_placement_requests() -> Vec<AdPlacementRequest> {
diff --git a/components/ads-client/tests/integration_test.rs b/components/ads-client/tests/integration_test.rs
index b73d8fa542..2f2620b429 100644
--- a/components/ads-client/tests/integration_test.rs
+++ b/components/ads-client/tests/integration_test.rs
@@ -8,12 +8,13 @@ use std::time::Duration;
 
 use ads_client::{
     http_cache::{ByteSize, CacheOutcome, HttpCache, RequestCachePolicy},
-    MozAdsClientBuilder, MozAdsPlacementRequest, MozAdsPlacementRequestWithCount,
+    MozAdsClientBuilder, MozAdsEnvironment, MozAdsPlacementRequest,
+    MozAdsPlacementRequestWithCount,
 };
+use std::sync::Arc;
 use url::Url;
 use viaduct::Request;
 
-/// Test-only hashable wrapper around Request.
 #[derive(Clone)]
 struct TestRequest(Request);
 
@@ -30,102 +31,82 @@ impl From<TestRequest> for Request {
     }
 }
 
-#[test]
-#[ignore]
-fn test_mock_pocket_billboard_1_placement() {
-    viaduct_dev::init_backend_dev();
-
-    let client = MozAdsClientBuilder::new().build();
-
-    let placement_request = MozAdsPlacementRequest {
-        placement_id: "mock_pocket_billboard_1".to_string(),
-        iab_content: None,
-    };
-
-    let result = client.request_image_ads(vec![placement_request], None);
-
-    assert!(result.is_ok(), "Failed to request ads: {:?}", result.err());
-
-    let placements = result.unwrap();
-
-    assert!(
-        placements.contains_key("mock_pocket_billboard_1"),
-        "Response should contain placement_id 'mock_pocket_billboard_1'"
-    );
+fn init_backend() {
+    let _ = viaduct_hyper::viaduct_init_backend_hyper();
+}
 
-    placements
-        .get("mock_pocket_billboard_1")
-        .expect("Placement should exist");
+fn staging_client() -> ads_client::MozAdsClient {
+    Arc::new(MozAdsClientBuilder::new())
+        .environment(MozAdsEnvironment::Staging)
+        .build()
 }
 
 #[test]
-#[ignore]
-fn test_newtab_spocs_placement() {
-    viaduct_dev::init_backend_dev();
-
-    let client = MozAdsClientBuilder::new().build();
-
-    let count = 3;
-    let placement_request = MozAdsPlacementRequestWithCount {
-        placement_id: "newtab_spocs".to_string(),
-        count,
-        iab_content: None,
-    };
-
-    let result = client.request_spoc_ads(vec![placement_request], None);
-
-    assert!(result.is_ok(), "Failed to request ads: {:?}", result.err());
-
-    let placements = result.unwrap();
-
-    assert!(
-        placements.contains_key("newtab_spocs"),
-        "Response should contain placement_id 'newtab_spocs'"
+#[ignore = "contract test: hits MARS staging"]
+fn test_contract_image_staging() {
+    init_backend();
+
+    let client = staging_client();
+    let result = client.request_image_ads(
+        vec![MozAdsPlacementRequest {
+            placement_id: "mock_billboard_1".to_string(),
+            iab_content: None,
+        }],
+        None,
     );
 
-    let spocs = placements
-        .get("newtab_spocs")
-        .expect("Placement should exist");
-
-    assert_eq!(
-        spocs.len(),
-        count as usize,
-        "Number of spocs should equal count parameter"
+    assert!(
+        result.is_ok(),
+        "Image ad request failed: {:?}",
+        result.err()
     );
+    let placements = result.unwrap();
+    assert!(placements.contains_key("mock_billboard_1"));
 }
 
 #[test]
-#[ignore]
-fn test_newtab_tile_1_placement() {
-    viaduct_dev::init_backend_dev();
-
-    let client = MozAdsClientBuilder::new().build();
-
-    let placement_request = MozAdsPlacementRequest {
-        placement_id: "newtab_tile_1".to_string(),
-        iab_content: None,
-    };
-
-    let result = client.request_tile_ads(vec![placement_request], None);
-
-    assert!(result.is_ok(), "Failed to request ads: {:?}", result.err());
+#[ignore = "contract test: hits MARS staging"]
+fn test_contract_spoc_staging() {
+    init_backend();
+
+    let client = staging_client();
+    let result = client.request_spoc_ads(
+        vec![MozAdsPlacementRequestWithCount {
+            placement_id: "mock_spoc_1".to_string(),
+            count: 1,
+            iab_content: None,
+        }],
+        None,
+    );
 
+    assert!(result.is_ok(), "Spoc ad request failed: {:?}", result.err());
     let placements = result.unwrap();
+    assert!(placements.contains_key("mock_spoc_1"));
+}
 
-    assert!(
-        placements.contains_key("newtab_tile_1"),
-        "Response should contain placement_id 'newtab_tile_1'"
+#[test]
+#[ignore = "contract test: hits MARS staging"]
+fn test_contract_tile_staging() {
+    init_backend();
+
+    let client = staging_client();
+    let result = client.request_tile_ads(
+        vec![MozAdsPlacementRequest {
+            placement_id: "mock_tile_1".to_string(),
+            iab_content: None,
+        }],
+        None,
     );
 
-    placements
-        .get("newtab_tile_1")
-        .expect("Placement should exist");
+    assert!(result.is_ok(), "Tile ad request failed: {:?}", result.err());
+    let placements = result.unwrap();
+    assert!(placements.contains_key("mock_tile_1"));
 }
 
 #[test]
 #[ignore]
 fn test_cache_works_using_real_timeouts() {
-    viaduct_dev::init_backend_dev();
+    init_backend();
 
     let cache: HttpCache<TestRequest> = HttpCache::builder("integration_tests.db")
         .default_ttl(Duration::from_secs(60))
@@ -138,7 +119,7 @@ fn test_cache_works_using_real_timeouts() {
         "context_id": "12347fff-00b0-aaaa-0978-189231239808",
         "placements": [
             {
-            "placement": "mock_pocket_billboard_1",
+            "placement": "mock_billboard_1",
             "count": 1,
             }
         ],