generated: '2026-08-13'
method: derived
source: >-
  openapi/transunion-trucontact-tcs-shaken-openapi.yml; github.com/neustar/tcs-apis
  (releases/tags/branches, read 2026-08-13)
note: >-
  No StatusPage and no Deprecation pointer are emitted in apis.yml: TransUnion publishes
  neither a public status page reachable to us nor a deprecation/sunset policy. The
  TruContact TCS API is versioned in the URI path and governed through a public GitHub
  proposal process, which is the whole of the published lifecycle contract.
versioning:
  scheme: uri-path
  current: v2
  spec_version: 1.0.0
  docs: https://neustar.github.io/tcs-apis/
  detail: >-
    Paths are /authn/v2/* and /verify/v2/*. info.version (1.0.0) versions the specification
    document, not the service.
change_process:
  type: public-proposal
  url: https://github.com/neustar/tcs-apis/issues
  detail: >-
    The repo README defines a formal proposal workflow — file an issue, triage to
    accept/decline/design-doc, then implement — and states the intent plainly: "In the
    spirit of being a public API, we've chosen to publicize the generators that create our
    documentation." That is an unusually open governance posture for a credit bureau.
  contributing: https://github.com/neustar/tcs-apis/blob/main/CONTRIBUTING.md
  license: MIT
releases:
  - tag: 3gpp-full-specs
    date: '2023-01-18'
    url: https://github.com/neustar/tcs-apis/releases/tag/3gpp-full-specs
releases_note: >-
  Only one tagged release exists, and there is no dated changelog to capture. The
  repository's CHANGELOG.md is NOT TransUnion's — it is Redocly's, inherited because the
  docs site is a fork of Redoc — so no ChangeLog artifact or pointer is emitted rather than
  crediting TransUnion with another project's release history.
unreleased_work:
  - branch: feature/allEndpoints
    detail: >-
      Extends the 3GPP companion spec from 2 to 6 operations (adds divSigning, rphSigning,
      divVerification, rphVerification). Unmerged as of 2026-08-13, so the published contract
      is the narrower one.
deprecation:
  policy_url: null
  sunset_header: false
  detail: No deprecation policy, no RFC 8594 Sunset/Deprecation header support documented.
deprecated_operations: []
sla:
  url: null
  uptime_target: null
  detail: >-
    Not applicable in the usual sense — TCS AS/VS is deployed inside the carrier's own
    network (templated server block), so availability is governed by the carrier contract,
    not a public SLA page.
status_page: null
status_page_note: >-
  No status.transunion.com or equivalent was found; www.transunion.com answers 403 to
  non-browser clients, so a status page could not be confirmed either way.
end_of_life:
  - surface: developer.transunion.com
    state: gone
    detail: >-
      The host recorded as this provider's humanURL and baseURL since 2026-05 no longer
      resolves — NXDOMAIN on 2026-08-13. The Global Developer Portal as catalogued is dead;
      TransUnion's live technical surfaces are techservices.transunion.com (403 to bots),
      transunion.readme.io (401, credentialed) and the regional CIBIL API Marketplace.
    checked: '2026-08-13'