Update Polymarket documentation - March 27, 2026

Added 19 new documentation pages: - Rebates API: get-current-rebated-fees-for-a-maker - Relayer API: 7 new endpoints (safe check, transactions, nonce, API keys) - Rewards API: 6 new endpoints (earnings, configurations, percentages) - Data API: get-midpoint-price (replaces empty market-data version) - Resources: blockchain-data, referral-program - Trading: matching-engine Updated TARGET.md with new URL entries.
2026-03-27 13:12:05 +01:00
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+> ## Documentation Index
+> Fetch the complete documentation index at: https://docs.polymarket.com/llms.txt
+> Use this file to discover all available pages before exploring further.
+
+# Get midpoint price
+
+> Retrieves the midpoint price for a specific token ID.
+The midpoint is calculated as the average of the best bid and best ask prices.
+
+
+
+
+## OpenAPI
+
+````yaml /api-spec/clob-openapi.yaml get /midpoint
+openapi: 3.1.0
+info:
+  title: Polymarket CLOB API
+  description: Polymarket CLOB API Reference
+  license:
+    name: MIT
+    identifier: MIT
+  version: 1.0.0
+servers:
+  - url: https://clob.polymarket.com
+    description: Production CLOB API
+  - url: https://clob-staging.polymarket.com
+    description: Staging CLOB API
+security: []
+tags:
+  - name: Trade
+    description: Trade endpoints
+  - name: Markets
+    description: Market data endpoints
+  - name: Account
+    description: Account and authentication endpoints
+  - name: Notifications
+    description: User notification endpoints
+  - name: Rewards
+    description: Rewards and earnings endpoints
+  - name: Rebates
+    description: Maker rebate endpoints
+paths:
+  /midpoint:
+    get:
+      tags:
+        - Data
+      summary: Get midpoint price
+      description: >
+        Retrieves the midpoint price for a specific token ID.
+
+        The midpoint is calculated as the average of the best bid and best ask
+        prices.
+      operationId: getMidpoint
+      parameters:
+        - name: token_id
+          in: query
+          description: Token ID (asset ID)
+          required: true
+          schema:
+            type: string
+          example: 0xabc123def456...
+      responses:
+        '200':
+          description: Successfully retrieved midpoint price
+          content:
+            application/json:
+              schema:
+                type: object
+                required:
+                  - mid_price
+                properties:
+                  mid_price:
+                    type: string
+                    description: Midpoint price as a string
+                    example: '0.45'
+        '400':
+          description: Bad request - Invalid token id
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ErrorResponse'
+              example:
+                error: Invalid token id
+        '404':
+          description: Not found - No orderbook exists for the requested token id
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ErrorResponse'
+              example:
+                error: No orderbook exists for the requested token id
+      security: []
+components:
+  schemas:
+    ErrorResponse:
+      type: object
+      required:
+        - error
+      properties:
+        error:
+          type: string
+          description: Error message
+
+````
+
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