diff --git a/pkg/client/client.go b/pkg/client/client.go
index bd3ed90..bb7a9aa 100644
--- a/pkg/client/client.go
+++ b/pkg/client/client.go
@@ -74,6 +74,8 @@ type Request struct {
 	Body            any
 	BodyContentType string
 	Headers         map[string]string
+	// NoAccountID, when true, omits the accountIdentifier query param for this request.
+	NoAccountID bool
 }
 
 // Client makes authenticated HTTP requests to the Harness API.
@@ -82,6 +84,10 @@ type Client struct {
 	resolved   *auth.ResolvedAuth
 	http       *http.Client
 	cliCommand string // value for X-CLI-Command header; "completion" for completion requests
+	// NoAccountID, when true, omits the accountIdentifier query param from every
+	// request made by this Client. Set by callers that build requests via the
+	// Get/Post/Put/Delete/etc. shorthand methods, which don't accept per-request options.
+	NoAccountID bool
 }
 
 // New creates a Client from a command context.
@@ -243,7 +249,9 @@ func (c *Client) buildRequest(r Request) (*http.Request, *url.URL, error) {
 		return nil, nil, fmt.Errorf("building URL: %w", err)
 	}
 	q := u.Query()
-	q.Set("accountIdentifier", c.resolved.AccountID)
+	if !r.NoAccountID && !c.NoAccountID {
+		q.Set("accountIdentifier", c.resolved.AccountID)
+	}
 	for k, v := range r.QueryParams {
 		if v != "" {
 			q.Set(k, v)
diff --git a/pkg/client/client_test.go b/pkg/client/client_test.go
new file mode 100644
index 0000000..162ac9c
--- /dev/null
+++ b/pkg/client/client_test.go
@@ -0,0 +1,74 @@
+// Copyright © 2026 Harness Inc.
+// SPDX-License-Identifier: Apache-2.0
+
+package client
+
+import (
+	"context"
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"testing"
+
+	"github.com/harness/cli/v3/pkg/auth"
+)
+
+func testClient(apiURL string) *Client {
+	return &Client{
+		ctx: context.Background(),
+		resolved: &auth.ResolvedAuth{
+			APIUrl:    apiURL,
+			AccountID: "acct",
+			AuthType:  auth.AuthTypePAT,
+			PATToken:  "pat.test",
+		},
+		http: &http.Client{},
+	}
+}
+
+func TestBuildRequest_AccountIdentifier(t *testing.T) {
+	tests := []struct {
+		name           string
+		reqNoAccountID bool
+		clientNoAcctID bool
+		wantPresent    bool
+	}{
+		{name: "default_present", wantPresent: true},
+		{name: "request_suppressed", reqNoAccountID: true, wantPresent: false},
+		{name: "client_suppressed", clientNoAcctID: true, wantPresent: false},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			c := testClient("https://example.test")
+			c.NoAccountID = tc.clientNoAcctID
+			req, u, err := c.buildRequest(Request{Method: "GET", Path: "/items", NoAccountID: tc.reqNoAccountID})
+			if err != nil {
+				t.Fatalf("unexpected error: %v", err)
+			}
+			_ = req
+			got := u.Query().Get("accountIdentifier") != ""
+			if got != tc.wantPresent {
+				t.Fatalf("accountIdentifier present = %v, want %v (query=%q)", got, tc.wantPresent, u.RawQuery)
+			}
+		})
+	}
+}
+
+func TestDoRequest_AccountIdentifierOmittedOnWire(t *testing.T) {
+	var gotQuery url.Values
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		gotQuery = r.URL.Query()
+		w.Write([]byte(`{}`))
+	}))
+	defer srv.Close()
+
+	c := testClient(srv.URL)
+	c.NoAccountID = true
+	if _, _, err := c.DoRequest(Request{Method: "GET", Path: "/items"}); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if got := gotQuery.Get("accountIdentifier"); got != "" {
+		t.Fatalf("accountIdentifier = %q, want empty", got)
+	}
+}
diff --git a/pkg/endpoint/paging.go b/pkg/endpoint/paging.go
index a94bc6d..d56eda3 100644
--- a/pkg/endpoint/paging.go
+++ b/pkg/endpoint/paging.go
@@ -73,6 +73,7 @@ func BuildRequest(ctx *cmdctx.Ctx, ep *spec.EndpointSpec) (*client.Request, erro
 		Method:      method,
 		Path:        path,
 		QueryParams: qp,
+		NoAccountID: ep.NoAccountID,
 	}
 	if len(ep.BodyParams) > 0 {
 		req.Body = buildBody(ep, exprEnv)
diff --git a/pkg/endpoint/paging_test.go b/pkg/endpoint/paging_test.go
new file mode 100644
index 0000000..404665d
--- /dev/null
+++ b/pkg/endpoint/paging_test.go
@@ -0,0 +1,44 @@
+// Copyright © 2026 Harness Inc.
+// SPDX-License-Identifier: Apache-2.0
+
+package endpoint
+
+import (
+	"context"
+	"testing"
+
+	"github.com/harness/cli/v3/pkg/auth"
+	"github.com/harness/cli/v3/pkg/cmdctx"
+	"github.com/harness/cli/v3/pkg/spec"
+)
+
+func TestBuildRequest_NoAccountID(t *testing.T) {
+	tests := []struct {
+		name string
+		ep   *spec.EndpointSpec
+		want bool
+	}{
+		{name: "default_false", ep: &spec.EndpointSpec{Path: "/items"}, want: false},
+		{name: "propagated_true", ep: &spec.EndpointSpec{Path: "/items", NoAccountID: true}, want: true},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			ctx := &cmdctx.Ctx{
+				Context: context.Background(),
+				Auth: &auth.ResolvedAuth{
+					AccountID: "acct",
+					OrgID:     "org",
+					ProjectID: "proj",
+				},
+			}
+			req, err := BuildRequest(ctx, tc.ep)
+			if err != nil {
+				t.Fatalf("unexpected error: %v", err)
+			}
+			if req.NoAccountID != tc.want {
+				t.Fatalf("req.NoAccountID = %v, want %v", req.NoAccountID, tc.want)
+			}
+		})
+	}
+}
diff --git a/pkg/registry/endpoint.go b/pkg/registry/endpoint.go
index 35ad187..5dd84fd 100644
--- a/pkg/registry/endpoint.go
+++ b/pkg/registry/endpoint.go
@@ -57,6 +57,7 @@ func callEndpointFull(ctx *cmdctx.Ctx, ep *spec.EndpointSpec, extraQueryParams m
 	}
 
 	c := client.New(ctx)
+	c.NoAccountID = ep.NoAccountID
 	method := ep.Method
 	if method == "" {
 		method = "GET"
diff --git a/pkg/registry/endpoint_test.go b/pkg/registry/endpoint_test.go
index 5b99cc5..66cbf75 100644
--- a/pkg/registry/endpoint_test.go
+++ b/pkg/registry/endpoint_test.go
@@ -923,6 +923,36 @@ func TestCallEndpointFull_Priority3_DefaultDispatch(t *testing.T) {
 	}
 }
 
+// TestCallEndpointFull_NoAccountID verifies accountIdentifier is set by default
+// and omitted when the endpoint opts out via no_account_id.
+func TestCallEndpointFull_NoAccountID(t *testing.T) {
+	tests := []struct {
+		name string
+		ep   *spec.EndpointSpec
+		want bool // want accountIdentifier present
+	}{
+		{name: "default_present", ep: &spec.EndpointSpec{Path: "/items"}, want: true},
+		{name: "suppressed", ep: &spec.EndpointSpec{Path: "/items", NoAccountID: true}, want: false},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			srv, cap := captureServer(t, `{}`)
+			r := New()
+			ctx := testCtx(srv.URL, nil)
+			ctx.Resolver = r
+
+			if _, _, err := callEndpointFull(ctx, tc.ep, nil); err != nil {
+				t.Fatalf("unexpected error: %v", err)
+			}
+			got := qv(t, cap.rawQuery).Get("accountIdentifier") != ""
+			if got != tc.want {
+				t.Fatalf("accountIdentifier present = %v, want %v (query=%q)", got, tc.want, cap.rawQuery)
+			}
+		})
+	}
+}
+
 // TestCallEndpointFull_Priority3_BodyFn — body_fn supplies the POST body.
 func TestCallEndpointFull_Priority3_BodyFn(t *testing.T) {
 	srv, cap := captureServer(t, `{}`)
diff --git a/pkg/spec/spec.go b/pkg/spec/spec.go
index b3924c7..757b3ea 100644
--- a/pkg/spec/spec.go
+++ b/pkg/spec/spec.go
@@ -456,6 +456,9 @@ type EndpointSpec struct {
 	// NoFields, when true, suppresses all field rendering (noun fields and fields_extra).
 	// Use with text_header/text_footer for commands whose response has no displayable fields.
 	NoFields bool `yaml:"no_fields,omitempty"`
+	// NoAccountID, when true, omits the accountIdentifier query param that is otherwise
+	// set on every request. Use for endpoints that reject or don't expect it.
+	NoAccountID bool `yaml:"no_account_id,omitempty"`
 	// FieldsSubset lists field IDs from the noun that this command's API actually returns.
 	// When set, --list-columns only advertises these IDs.
 	FieldsSubset []string `yaml:"fields_subset,omitempty"`