CMS — Centers for Medicare & Medicaid Services

CMS — Centers for Medicare & Medicaid Services Catalog API

The Catalog API from CMS — Centers for Medicare & Medicaid Services — 4 operation(s) for catalog.

Documentation GitHub OpenAPI

Operations 4

GET /dataset List Datasets #

GET /dataset/{datasetId} Get Dataset Metadata #

GET /metastore/schemas/dataset/items List Provider Datasets #

GET /metastore/schemas/dataset/items/{datasetId} Get Provider Dataset #

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/cms-gov-catalog-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 form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

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

OpenAPI Specification

openapi: 3.2.0
info:
  title: Cms Gov Catalog API
  version: '1.0'
  license:
    name: Public Domain (U.S. Government Work)
    url: https://www.usa.gov/government-works
  description: 'Operations tagged Catalog across 2 of this provider''s published API definitions: cms-gov-open-data-openapi.yml, cms-gov-provider-data-openapi.yml. Each path carries the servers of the definition it was published in.'
servers:
- url: https://data.cms.gov/data-api/v1
  description: Production
- url: https://data.cms.gov/data.json
  description: DCAT catalog
- url: https://data.cms.gov/provider-data/api/1
  description: Production
tags:
- name: Catalog
paths:
  /dataset:
    get:
      summary: List Datasets
      operationId: listDatasets
      tags:
      - Catalog
      parameters:
      - name: keyword
        in: query
        schema:
          type: string
      - name: theme
        in: query
        schema:
          type: string
      - name: publisher
        in: query
        schema:
          type: string
      responses:
        '200':
          description: List of datasets
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Dataset'
    servers:
    - url: https://data.cms.gov/data-api/v1
      description: Production
    - url: https://data.cms.gov/data.json
      description: DCAT catalog
  /dataset/{datasetId}:
    get:
      summary: Get Dataset Metadata
      operationId: getDataset
      tags:
      - Catalog
      parameters:
      - name: datasetId
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Dataset metadata
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Dataset'
    servers:
    - url: https://data.cms.gov/data-api/v1
      description: Production
    - url: https://data.cms.gov/data.json
      description: DCAT catalog
  /metastore/schemas/dataset/items:
    get:
      summary: List Provider Datasets
      operationId: listProviderDatasets
      tags:
      - Catalog
      responses:
        '200':
          description: List of provider datasets
    servers:
    - url: https://data.cms.gov/provider-data/api/1
      description: Production
  /metastore/schemas/dataset/items/{datasetId}:
    get:
      summary: Get Provider Dataset
      operationId: getProviderDataset
      tags:
      - Catalog
      parameters:
      - name: datasetId
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Dataset record
    servers:
    - url: https://data.cms.gov/provider-data/api/1
      description: Production
components:
  schemas:
    Dataset:
      type: object
      properties:
        identifier:
          type: string
        title:
          type: string
        description:
          type: string
        keyword:
          type: array
          items:
            type: string
        issued:
          type: string
          format: date
        modified:
          type: string
          format: date
        publisher:
          type: object
        contactPoint:
          type: object
        accessLevel:
          type: string
        distribution:
          type: array
          items:
            type: object
        theme:
          type: array
          items:
            type: string
x-refined-from:
- cms-gov-open-data-openapi.yml
- cms-gov-provider-data-openapi.yml

CMS — Centers for Medicare & Medicaid Services Catalog API

Operations 4

Documentation

Specifications

Schemas & Data

Other Resources