CMS — Centers for Medicare & Medicaid Services

aid: cms-gov
url: https://raw.githubusercontent.com/api-evangelist/cms-gov/refs/heads/main/apis.yml
apis:
  - aid: cms-gov:blue-button-2-fhir-api
    name: CMS Blue Button 2.0 API
    tags:
      - Healthcare
      - Medicare
      - FHIR
      - Claims
      - Beneficiary
      - Government
    humanURL: https://bluebutton.cms.gov/developers/
    baseURL: https://api.bluebutton.cms.gov/v2/fhir
    properties:
      - url: https://bluebutton.cms.gov/developers/
        type: Documentation
      - url: https://bluebutton.cms.gov/api/v2/explorer/
        type: Console
      - url: openapi/cms-gov-blue-button-2-openapi.yml
        type: OpenAPI
      - url: json-schema/cms-gov-explanation-of-benefit-schema.json
        type: JSONSchema
      - url: json-schema/cms-gov-patient-schema.json
        type: JSONSchema
      - url: json-schema/cms-gov-coverage-schema.json
        type: JSONSchema
      - url: json-ld/cms-gov-context.jsonld
        type: JSONLD
    description: >-
      Blue Button 2.0 is a developer-friendly, OAuth 2.0-enabled, HL7 FHIR R4 standard data API that delivers Medicare
      Part A, B, and D claims data for 60+ million Medicare beneficiaries to applications, services, and research
      programs. Includes Patient, Coverage, and ExplanationOfBenefit resources for the beneficiary's consented data.
  - aid: cms-gov:beneficiary-claims-data-api
    name: CMS Beneficiary Claims Data API (BCDA)
    tags:
      - Healthcare
      - Medicare
      - FHIR
      - Bulk Data
      - ACO
      - Claims
      - Government
    humanURL: https://bcda.cms.gov/
    baseURL: https://api.bcda.cms.gov/api/v2
    properties:
      - url: https://bcda.cms.gov/
        type: Documentation
      - url: https://bcda.cms.gov/guide.html
        type: Documentation
      - url: https://sandbox.bcda.cms.gov/
        type: Sandbox
      - url: openapi/cms-gov-bcda-openapi.yml
        type: OpenAPI
    description: >-
      BCDA enables Medicare Shared Savings Program Accountable Care Organizations (ACOs) to retrieve bulk Medicare Parts
      A, B, and D claims data for their assigned and assignable beneficiaries via the HL7 FHIR Bulk Data Access (Flat
      FHIR) specification. Uses asynchronous $export endpoints returning NDJSON resources for Patient, Coverage, and
      ExplanationOfBenefit.
  - aid: cms-gov:ab2d-api
    name: CMS AB2D API
    tags:
      - Healthcare
      - Medicare
      - FHIR
      - Bulk Data
      - Part D
      - Claims
      - Government
    humanURL: https://ab2d.cms.gov/
    baseURL: https://api.ab2d.cms.gov/api/v2
    properties:
      - url: https://ab2d.cms.gov/
        type: Documentation
      - url: https://ab2d.cms.gov/getting-started/
        type: Documentation
      - url: https://sandbox.ab2d.cms.gov/swagger-ui/
        type: Console
      - url: openapi/cms-gov-ab2d-openapi.yml
        type: OpenAPI
    description: >-
      AB2D (Claim and Claim Line Feed) delivers Medicare Parts A, B, and D claims data to Part D prescription drug plan
      sponsors via the HL7 FHIR Bulk Data Access specification. Supports asynchronous $export of ExplanationOfBenefit
      resources as NDJSON for all enrolled Medicare beneficiaries since 2020.
  - aid: cms-gov:data-at-point-of-care-api
    name: CMS Data at the Point of Care API (DPC)
    tags:
      - Healthcare
      - Medicare
      - FHIR
      - Bulk Data
      - Provider
      - Government
    humanURL: https://dpc.cms.gov/
    baseURL: https://sandbox.dpc.cms.gov/api/v1
    properties:
      - url: https://dpc.cms.gov/
        type: Documentation
      - url: https://dpc.cms.gov/docs
        type: Documentation
      - url: openapi/cms-gov-dpc-openapi.yml
        type: OpenAPI
    description: >-
      Data at the Point of Care fills gaps in patient history by delivering Medicare claims data via HL7 FHIR Bulk Data
      Access to fee-for-service providers at the point of care. Providers register Practitioner, Organization, Group,
      and Patient roster resources, then asynchronously $export ExplanationOfBenefit, Coverage, and Patient resources.
  - aid: cms-gov:bfd-api
    name: CMS Beneficiary FHIR Data Server (BFD)
    tags:
      - Healthcare
      - Medicare
      - FHIR
      - Claims
      - Beneficiary
      - Government
    humanURL: https://bfd.cms.gov/
    properties:
      - url: https://bfd.cms.gov/
        type: Documentation
      - url: https://github.com/CMSgov/beneficiary-fhir-data
        type: SourceCode
      - url: openapi/cms-gov-bfd-openapi.yml
        type: OpenAPI
    description: >-
      The Beneficiary FHIR Data (BFD) Server is the upstream HL7 FHIR R4 service that powers Blue Button 2.0, BCDA,
      AB2D, and DPC. BFD ingests claims from the CMS Chronic Conditions Warehouse (CCW) and exposes Patient, Coverage,
      and ExplanationOfBenefit resources with both synchronous and bulk asynchronous access. Internal/peering access
      only; clients use the downstream Blue Button, BCDA, AB2D, or DPC APIs.
  - aid: cms-gov:marketplace-api
    name: CMS Marketplace API
    tags:
      - Healthcare
      - Marketplace
      - Insurance
      - ACA
      - Plans
      - Government
    humanURL: https://developer.cms.gov/marketplace-api/
    baseURL: https://marketplace.api.healthcare.gov/api/v1
    properties:
      - url: https://developer.cms.gov/marketplace-api/
        type: Documentation
      - url: https://www.cms.gov/marketplace/resources/data/public-use-files
        type: Documentation
      - url: openapi/cms-gov-marketplace-openapi.yml
        type: OpenAPI
    description: >-
      The Marketplace API exposes Qualified Health Plan (QHP) and Stand-alone Dental Plan (SADP) data from
      healthcare.gov including plan finder, plan compare, plan rates, plan benefits, plan crosswalks, and issuer
      details. Powers consumer plan-shopping experiences across HealthCare.gov and partner brokers.
  - aid: cms-gov:data-cms-gov-api
    name: CMS Open Data API (data.cms.gov)
    tags:
      - Healthcare
      - Open Data
      - Datasets
      - Socrata
      - Government
    humanURL: https://data.cms.gov/
    baseURL: https://data.cms.gov/data-api/v1
    properties:
      - url: https://data.cms.gov/
        type: Portal
      - url: https://data.cms.gov/provider-data/
        type: Documentation
      - url: https://data.cms.gov/data.json
        type: Schema
      - url: openapi/cms-gov-open-data-openapi.yml
        type: OpenAPI
    description: >-
      The CMS Open Data API exposes the full catalog of public CMS datasets — Medicare provider utilization and payment
      files, Medicare Advantage and Part D enrollment, Hospital Compare, Nursing Home Compare, Physician Compare, Open
      Payments (Sunshine Act), Marketplace public-use files, and the Provider Data Catalog. Datasets are queryable via
      filtered JSON/CSV downloads and dataset-level data-api endpoints.
  - aid: cms-gov:provider-data-catalog-api
    name: CMS Provider Data Catalog API
    tags:
      - Healthcare
      - Quality
      - Provider
      - Hospitals
      - Compare
      - Government
    humanURL: https://data.cms.gov/provider-data/
    baseURL: https://data.cms.gov/provider-data/api/1
    properties:
      - url: https://data.cms.gov/provider-data/
        type: Portal
      - url: https://data.cms.gov/provider-data/docs
        type: Documentation
      - url: openapi/cms-gov-provider-data-openapi.yml
        type: OpenAPI
    description: >-
      The Provider Data Catalog API surfaces the quality and compare datasets that powered the legacy Hospital Compare,
      Nursing Home Compare, Home Health Compare, Hospice Compare, Long-Term Care Hospital Compare, Inpatient
      Rehabilitation Facility Compare, Dialysis Facility Compare, and Physician Compare sites via CKAN DKAN-compatible
      dataset and resource endpoints.
  - aid: cms-gov:quality-payment-program-api
    name: CMS Quality Payment Program API
    tags:
      - Healthcare
      - Quality
      - MIPS
      - MACRA
      - Provider
      - Government
    humanURL: https://qpp.cms.gov/about/resource-library
    baseURL: https://qpp.cms.gov/api
    properties:
      - url: https://qpp.cms.gov/about/resource-library
        type: Documentation
      - url: https://github.com/CMSgov/qpp-measures-data
        type: SourceCode
      - url: openapi/cms-gov-qpp-openapi.yml
        type: OpenAPI
    description: >-
      The Quality Payment Program (QPP) API supports the Merit-based Incentive Payment System (MIPS) and Advanced
      Alternative Payment Models (APMs) under MACRA. Exposes measures, benchmarks, scoring, and submission endpoints
      used by Qualified Registries, EHR vendors, and QCDRs to submit clinician performance data and retrieve scoring
      metadata.
  - aid: cms-gov:medicare-coverage-database-api
    name: CMS Medicare Coverage Database API
    tags:
      - Healthcare
      - Medicare
      - Coverage
      - Policy
      - LCD
      - NCD
      - Government
    humanURL: https://www.cms.gov/medicare-coverage-database/
    properties:
      - url: https://www.cms.gov/medicare-coverage-database/
        type: Portal
      - url: https://www.cms.gov/medicare-coverage-database/reports/reports.aspx
        type: Documentation
      - url: openapi/cms-gov-mcd-openapi.yml
        type: OpenAPI
    description: >-
      The Medicare Coverage Database (MCD) exposes National Coverage Determinations (NCDs), Local Coverage
      Determinations (LCDs), Local Coverage Articles, Proposed Decisions, National Coverage Analyses, and Medicare
      Evidence Development & Coverage Advisory Committee (MEDCAC) records. Powers coverage policy lookups by HCPCS code,
      ICD-10, contractor jurisdiction, and state.
name: CMS — Centers for Medicare & Medicaid Services
description: >-
  The Centers for Medicare & Medicaid Services (CMS) is the U.S. federal agency within the Department of Health and
  Human Services that administers Medicare, Medicaid, the Children's Health Insurance Program (CHIP), the Health
  Insurance Marketplace, and the broader CMS open-data program. CMS operates one of the largest collections of HL7 FHIR
  APIs in the U.S. federal government — Blue Button 2.0, BCDA, AB2D, DPC, and the upstream BFD server — alongside the
  Marketplace API, the data.cms.gov open-data catalog, the Provider Data Catalog, the Quality Payment Program API, and
  the Medicare Coverage Database.
tags:
  - Healthcare
  - Medicare
  - Medicaid
  - FHIR
  - Bulk Data
  - Open Data
  - Government
  - Federal
  - Claims
  - Insurance
  - ACA
  - Marketplace
  - Quality
kind: contract
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
access: 3rd-Party
common:
  - url: https://www.cms.gov/
    name: CMS Homepage
    type: Portal
  - url: https://developer.cms.gov/
    name: CMS Developer Hub
    type: Portal
  - url: https://github.com/CMSgov
    name: CMSgov GitHub Org
    type: SourceCode
  - url: https://github.com/CMSgov/bluebutton-developer-help
    name: Blue Button Developer Help
    type: Support
  - url: https://groups.google.com/g/developer-group-for-cms-blue-button-api
    name: Blue Button Google Group
    type: Forum
  - url: https://groups.google.com/g/cms-bcda-api
    name: BCDA Google Group
    type: Forum
  - url: https://groups.google.com/g/cms-ab2d-api
    name: AB2D Google Group
    type: Forum
  - url: https://dpc.cms.gov/contact
    name: DPC Support
    type: Support
  - url: https://bluebutton.cms.gov/developers/#try-the-api
    name: Blue Button Sandbox
    type: Sandbox
  - url: https://sandbox.bcda.cms.gov/
    name: BCDA Sandbox
    type: Sandbox
  - url: https://sandbox.ab2d.cms.gov/
    name: AB2D Sandbox
    type: Sandbox
  - url: https://sandbox.dpc.cms.gov/
    name: DPC Sandbox
    type: Sandbox
  - url: https://bluebutton.cms.gov/developers/#authorization
    name: Blue Button Authentication
    type: Authentication
  - url: https://bcda.cms.gov/guide.html#authentication
    name: BCDA Authentication
    type: Authentication
  - url: https://www.cms.gov/about-cms/contact-current/contact-us
    name: Contact CMS
    type: Support
  - url: https://www.cms.gov/newsroom
    name: CMS Newsroom
    type: Blog
  - url: https://www.cms.gov/about-cms/web-policies-important-links/privacy-policy
    name: Privacy Policy
    type: Privacy
  - url: https://www.cms.gov/cclio/regulations-and-guidance
    name: CCIIO Regulations and Guidance
    type: Documentation
  - url: https://confluence.hl7.org/display/FHIR/Argonaut+Implementation+Guide+Home+Page
    name: Argonaut FHIR Implementation Guide
    type: Documentation
  - url: https://hl7.org/fhir/us/carin-bb/
    name: CARIN Blue Button FHIR IG
    type: Documentation
  - url: https://hl7.org/fhir/uv/bulkdata/
    name: HL7 FHIR Bulk Data Access IG
    type: Documentation
  - url: https://www.cms.gov/about-cms
    name: About CMS
    type: About
  - url: https://www.cms.gov/about-cms/contact-current/cms-rss-feeds
    name: CMS RSS Feeds
    type: Feeds
maintainers:
  - FN: Centers for Medicare & Medicaid Services
    url: https://www.cms.gov/
    email: CMS_Feedback@cms.hhs.gov
created: '2026-05-25'
modified: '2026-05-25'
specificationVersion: '0.18'