Payerset Rates API

Payer-provider negotiated rate lookups from Transparency in Coverage MRFs.

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this
  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools

Call it yourself

curl for this page
This API
curl "https://apis.io/api/v1/apis/payerset-rates-api"
All apis
curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no email required.

A second provider on the same verified email joins the account you already have.

OpenAPI Specification

payerset-rates-api-openapi.yml Raw ↑
openapi: 3.0.1
info:
  title: Payerset Data Lake Billing Codes Rates 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: Rates
  description: Payer-provider negotiated rate lookups from Transparency in Coverage MRFs.
paths:
  /v1/rates/rate_query:
    get:
      operationId: queryRate
      tags:
      - Rates
      summary: Query negotiated rate
      description: Returns the negotiated rate(s) for a given combination of billing code, payer, and provider NPI, derived from payer Transparency in Coverage machine-readable files.
      parameters:
      - name: billing_code
        in: query
        required: true
        description: Service billing code (e.g., CPT/HCPCS/MS-DRG such as "27447").
        schema:
          type: string
      - name: payer
        in: query
        required: true
        description: Payer system name (e.g., "Aetna").
        schema:
          type: string
      - name: npi
        in: query
        required: true
        description: National Provider Identifier of the provider.
        schema:
          type: string
      responses:
        '200':
          description: 200 response
          headers:
            Access-Control-Allow-Origin:
              schema:
                type: string
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/rateQuery'
      security:
      - api_key: []
components:
  schemas:
    rateQuery:
      type: object
      description: Negotiated rate query result. The published API definition references a generic object schema for this response; fields are not enumerated in the provider's machine-readable definition.
      additionalProperties: true
  securitySchemes:
    api_key:
      type: apiKey
      name: x-api-key
      in: header