> ## 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 fee rate > Retrieves the base fee rate for a specific token ID. The fee rate can be provided either as a query parameter or as a path parameter. ## OpenAPI ````yaml /api-spec/clob-openapi.yaml get /fee-rate 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: /fee-rate: get: tags: - Market Data summary: Get fee rate description: > Retrieves the base fee rate for a specific token ID. The fee rate can be provided either as a query parameter or as a path parameter. operationId: getFeeRate parameters: - name: token_id in: query description: Token ID (asset ID) required: false schema: type: string example: 0xabc123def456... responses: '200': description: Successfully retrieved fee rate content: application/json: schema: $ref: '#/components/schemas/FeeRate' example: base_fee: 30 '400': description: Bad request - Invalid token id content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' example: error: Invalid token id '404': description: Not found - Fee rate not found for market content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' example: error: fee rate not found for market '500': description: Internal server error content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' example: error: Internal server error security: [] components: schemas: FeeRate: type: object required: - base_fee properties: base_fee: type: integer format: int64 description: Base fee in basis points example: 30 ErrorResponse: type: object required: - error properties: error: type: string description: Error message ````