generated: '2026-08-15'
method: searched
source: >-
  https://design.cms.gov/, https://github.com/CMSgov/design-system,
  https://www.npmjs.com/package/@cmsgov/design-system
summary: >-
  CMS publishes a first-party, open-source, Section 508-compliant React and Sass component library —
  the CMS Design System — plus three child design systems themed for CMS.gov, Medicare.gov and
  HealthCare.gov. These are client-side UI components a developer embeds in their own product, which is
  what makes them Components rather than SDKs. There are no embeddable hosted widgets, no prebuilt
  iframes, and no embedded dashboards: CMS ships the building blocks, not a drop-in surface.
families:
  - family: CMS Design System (core)
    description: >-
      Base Sass/CSS and React assets for building Section 508 compliant, responsive, consistent CMS
      products. Built on the U.S. Web Design System.
    docs: https://design.cms.gov/
    repo: https://github.com/CMSgov/design-system
    registry: npm
    package: '@cmsgov/design-system'
    version: 18.1.0
    published: '2026-07-29'
    official: true
  - family: HealthCare.gov design system
    description: Child design system themed for HealthCare.gov products.
    registry: npm
    package: '@cmsgov/ds-healthcare-gov'
    version: 18.1.0
    published: '2026-07-29'
    official: true
  - family: Medicare.gov design system
    description: Child design system themed for Medicare.gov products.
    registry: npm
    package: '@cmsgov/ds-medicare-gov'
    version: 18.1.0
    published: '2026-07-29'
    official: true
  - family: CMS.gov design system
    description: Child design system themed for CMS.gov products.
    registry: npm
    package: '@cmsgov/ds-cms-gov'
    version: 18.1.0
    published: '2026-07-29'
    official: true
loaders:
  - kind: npm
    note: All four packages are consumed through npm and bundled by the consumer; there is no CDN loader script.
hosted_surfaces: []
hosted_surfaces_note: >-
  No CMS API offers a hosted or embeddable UI surface (no hosted checkout equivalent, no embedded
  dashboard, no drop-in authorization widget). The Blue Button OAuth consent screen is hosted by
  Medicare.gov but is a redirect destination, not an embeddable component.