openapi: 3.0.1 info: title: Payerset Data Lake Billing Codes Payers API description: The Payerset Data Lake API provides programmatic access to U.S. healthcare price transparency data parsed from payer Transparency in Coverage (TiC) machine-readable files and hospital price transparency MRFs, enriched with provider, payer, and billing-code reference metadata. Endpoints support payer/provider negotiated rate lookups, NPI and TIN provider mapping, billing-code classification, and hospital MRF discovery. Authentication is via an API key supplied in the x-api-key header. contact: name: Payerset Support email: support@payerset.com url: https://www.payerset.com version: '2024-10-31' servers: - url: https://api.payerset.com description: Payerset Data Lake production API security: - api_key: [] tags: - name: Payers description: Payer reference metadata and payer listings. paths: /v1/metadata/payers/payer_detail: get: operationId: getPayerDetail tags: - Payers summary: Get payer detail description: Returns descriptive metadata for payers, including region, category, friendly name, and system name. responses: '200': description: 200 response headers: Access-Control-Allow-Origin: schema: type: string content: application/json: schema: $ref: '#/components/schemas/payerDetail' security: - api_key: [] /v1/metadata/payers/payer_list: get: operationId: getPayerList tags: - Payers summary: Get payer list description: Returns the list of payer system names available in the Data Lake. responses: '200': description: 200 response headers: Access-Control-Allow-Origin: schema: type: string content: application/json: schema: $ref: '#/components/schemas/payerList' security: - api_key: [] components: schemas: payerList: required: - payers type: object properties: payers: type: array items: type: string payerDetail: type: object properties: items: type: array items: type: object properties: payer_region: type: string payer_category: type: string payer_friendly_name: type: string payer_system_name: type: string securitySchemes: api_key: type: apiKey name: x-api-key in: header