generated: '2026-09-12'
method: searched
source: >-
  Searched npm (registry.npmjs.org), PyPI, Packagist, RubyGems and the GSA /
  GSA-TTS GitHub organizations for first-party client libraries against the GSA
  API surface documented at https://open.gsa.gov/api/.
description: >-
  GSA publishes no first-party API client SDK in any language registry. Every
  API on open.gsa.gov is documented as a plain HTTPS call carrying an
  api.data.gov key, and none of the 28 API pages links a client library. What
  GSA does publish to npm is front-end material — USWDS-based UI component
  libraries for SAM.gov and for GSA-TTS products — which is captured here and,
  in more detail, in components/. The only GSA-authored code that behaves like a
  client is the GSA-TTS MCP server set (see mcp/), which is distributed as
  source and as a container image rather than as a registry package.
sdk_count: 0
packages:
  - language: javascript
    registry: npm
    name: '@gsa-sam/sam-styles'
    url: https://www.npmjs.com/package/@gsa-sam/sam-styles
    source: https://github.com/GSA/sam-styles
    install: npm install @gsa-sam/sam-styles
    official: true
    kind: ui-components
    api_client: false
    version: 3.1.1
    published: '2026-08-25'
    note: >-
      SASS/CSS component library for SAM.gov built on USWDS. First-party (GSA
      GitHub org) but not an API client — it wraps no SAM.gov API operation.
  - language: javascript
    registry: npm
    name: '@gsa-tts/graymatter-ui'
    url: https://www.npmjs.com/package/@gsa-tts/graymatter-ui
    source: https://github.com/GSA-TTS
    install: npm install @gsa-tts/graymatter-ui
    official: true
    kind: ui-components
    api_client: false
    version: 2.0.5
    published: '2026-09-11'
    note: >-
      Svelte 5 UI component library from GSA Technology Transformation Services.
      First-party, actively released, but not an API client.
  - language: javascript
    registry: npm
    name: '@gsa-tts/svelte-ui-uswds'
    url: https://www.npmjs.com/package/@gsa-tts/svelte-ui-uswds
    source: https://github.com/GSA-TTS/svelte-ui
    install: npm install @gsa-tts/svelte-ui-uswds
    official: true
    kind: ui-components
    api_client: false
    version: 2.2.0
    published: null
    note: >-
      Publish date not read back from the registry metadata endpoint in this
      pass; version taken from the npm search index. Honest gap, not a guess.
  - language: python
    registry: pypi
    name: mcp-server-gsa-perdiem
    url: https://github.com/GSA-TTS/mcp-server-gsa-perdiem
    source: https://github.com/GSA-TTS/mcp-server-gsa-perdiem
    install: 'uv run --directory /path/to/mcp-server-gsa-perdiem python main.py'
    official: true
    kind: mcp-server
    api_client: true
    registry_published: false
    version: 0.1.0
    published: null
    note: >-
      Version 0.1.0 read from the repository pyproject.toml. NOT published to
      PyPI (pypi.org/pypi/gsa-perdiem/json -> 404), so there is no registry
      metadata endpoint and no release date to record. A consumer must clone the
      repository; that is the finding.
  - language: python
    registry: ghcr
    name: ghcr.io/gsa-tts/mcp-server-regulations-gov
    url: https://github.com/GSA-TTS/mcp-server-regulations-gov
    source: https://github.com/GSA-TTS/mcp-server-regulations-gov
    install: 'docker run ghcr.io/gsa-tts/mcp-server-regulations-gov:0.2.0'
    official: true
    kind: mcp-server
    api_client: true
    version: 0.2.0
    published: null
    note: >-
      Version pinned in the GSA MCP Server Hub catalog entry
      (GSA-TTS/mcp-server-hub-catalog regulations_gov.yaml,
      containerizedConfig.image). A container registry tag carries no dated
      release metadata comparable to npm/PyPI, so published is null by
      inspection rather than by omission.
third_party_note: >-
  pypi.org/project/perdiem exists (0.1.2, "A simple per diem library") but is a
  personal project, not a GSA publication, and is recorded here only so a future
  pass does not mistake it for a first-party SDK.