docs(splits): reflect Pro-tier gating across splits page, overview, and pricing comparison

The /splits + /splits/history endpoints were never surfaced in the
api-reference overview or pricing feature comparison, and the splits
page claimed "Available on all tiers." All three surfaces now show
Pro-tier ($229/mo) as the minimum.

Reported by Phil Goodrich 2026-04-22 after hitting 403 tier_restricted
against what the docs described.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: Mlaz-code

content/en/api-reference/overview.mdx

@@ -37,7 +37,7 @@ This spec covers all endpoints, request/response schemas, and authentication req
 
 ## Endpoint Summary
 
-SharpAPI exposes 33 routes across 6 namespaces plus reference and health endpoints.
+SharpAPI exposes 35 routes across 7 namespaces plus reference and health endpoints.
 
 ### Odds
 
@@ -66,6 +66,13 @@ SharpAPI exposes 33 routes across 6 namespaces plus reference and health endpoin
 | `GET` | `/api/v1/opportunities/arbitrage` | Yes | Hobby |
 | `GET` | `/api/v1/opportunities/middles` | Yes | Pro |
 
+### Splits
+
+| Method | Path | Auth | Min Tier |
+|--------|------|------|----------|
+| `GET` | `/api/v1/splits` | Yes | Pro |
+| `GET` | `/api/v1/splits/history` | Yes | Pro |
+
 ### Streaming
 
 | Method | Path | Auth | Min Tier |

content/en/api-reference/splits.mdx

@@ -14,7 +14,7 @@ GET /api/v1/splits
 
 ## Authentication
 
-Requires API key. Available on all tiers.
+Requires API key. Requires **Pro tier** ($229/mo) or higher.
 
 ## What are betting splits?
 

content/en/pricing.mdx

@@ -14,7 +14,7 @@ Choose the plan that fits your betting strategy. All plans include access to our
 |------|-------|---------|---------|------------|-------|----------|
 | **Free** | $0/mo | 12 | 0 | 60s | 2 | Odds, Schedule |
 | **Hobby** | $79/mo | 120 | 0* | Real-time | 5 | Odds, Schedule, Arbitrage |
-| **Pro** | $229/mo | 300 | 0* | Real-time | 15 | + EV, Middles, Low Hold |
+| **Pro** | $229/mo | 300 | 0* | Real-time | 15 | + EV, Middles, Low Hold, Splits |
 | **Sharp** | $399/mo | 1,000 | 0* | Real-time | All 32 | + Priority Support |
 | **Enterprise** | Custom | Custom | Custom | Real-time | All | + History, Futures, Game State, SLA |
 
@@ -63,6 +63,7 @@ Choose the plan that fits your betting strategy. All plans include access to our
     - Arbitrage Alerts
     - Middles Detection
     - Low Hold Detection
+    - Betting Splits
 
     Get Started
   </Cards.Card>
@@ -124,6 +125,8 @@ Need higher limits, custom features, or an SLA? Contact us for enterprise pricin
 | `GET /opportunities/arbitrage` | No | Yes | Yes | Yes | Yes |
 | `GET /opportunities/middles` | No | No | Yes | Yes | Yes |
 | `GET /opportunities/low_hold` | No | No | Yes | Yes | Yes |
+| `GET /splits` | No | No | Yes | Yes | Yes |
+| `GET /splits/history` | No | No | Yes | Yes | Yes |
 | `GET /futures` | No | No | No | No | Yes |
 | `GET /gamestate` | No | No | No | No | Yes |
 | CSV Export | No | No | Yes | Yes | Yes |