CMS Open Payments · Authentication Profile

Open Payments Authentication

Authentication

CMS Open Payments secures its APIs with none across 1 declared security scheme, as derived from its OpenAPI definitions.

Government DataHealthcareOpen DataTransparencyPaymentsClinical DataPhysiciansOpen GovernmentPublic Sector
Methods: none Schemes: 1 OAuth flows: API key in:

Security Schemes

none none

Source

Authentication Profile

Raw ↑
generated: '2026-07-11'
method: manual
source: https://openpaymentsdata.cms.gov/about/api
summary:
  types:
  - none
schemes:
- name: none
  type: none
  description: >-
    All public read access to the CMS Open Payments data API is open and requires
    no authentication - no API key, no token, no account. The metastore catalog,
    search, datastore query, SQL, and download endpoints are all reachable
    anonymously over HTTPS. This was confirmed live against the API on the review
    date.
  sources:
  - https://openpaymentsdata.cms.gov/about/api
notes: >-
  The underlying DKAN platform exposes write and content-moderation endpoints that
  require HTTP Basic Authentication, but those are reserved for CMS data
  publishers and are not part of the public consumer surface documented here.
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Work with this as data

Every security artifact 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 security posture

4 MCP tools reach this
  • find_securityBrowse and filter every security artifact in the catalog.
  • 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 security artifact
curl "https://apis.io/api/v1/security/open-payments-authentication"
All security posture
curl "https://apis.io/api/v1/security?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.

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