generated: '2026-09-05'
method: searched
provider: Cancer.gov
providerId: cancer-gov
source: https://docs.gdc.cancer.gov/API/Users_Guide/Getting_Started/, https://docs.gdc.cancer.gov/API/Release_Notes/API_Release_Notes/,
  live GET https://api.gdc.cancer.gov/status, https://api.seer.cancer.gov/docs, https://api.seer.cancer.gov/terms,
  and the info.version of each of the eight harvested OpenAPI documents.
summary:
  deprecated_operations: 0
  note: 'Zero operations across the eight first-party specs carry `deprecated: true`. NCI does deprecate
    — the GDC release notes for v8.3.0 and v8.5.0 both record dictionary properties being removed and
    made inaccessible via the API — but the deprecations are announced in prose release notes and never
    surfaced in the machine-readable contract, so a client reading only the spec cannot see them coming.'
versioning:
- api: cancer-gov:gdc-api
  scheme: path-segment + latest alias
  current: 8.5.0
  evidence: https://docs.gdc.cancer.gov/API/Users_Guide/Getting_Started/ documents both https://api.gdc.cancer.gov/<endpoint>
    (latest) and https://api.gdc.cancer.gov/<version>/<endpoint>. Live GET https://api.gdc.cancer.gov/status
    returns tag 8.5.0 and data_release 'Data Release 46.0 - August 10, 2026'. The only version segment
    in service is v0.
- api: cancer-gov:seer-api
  scheme: per-dataset version segment
  current: '1.0'
  evidence: info.version 1.0 in https://api.seer.cancer.gov/v3/api-docs; individual datasets are versioned
    in the path (for example /rest/glossary/latest) rather than the API as a whole.
- api: cancer-gov:evs-api
  scheme: semver release build
  current: 2.4.1.RELEASE
  evidence: info.version in https://api-evsrest.nci.nih.gov/v3/api-docs; the path carries /api/v1. Terminology
    content is versioned separately and returned by https://api-evsrest.nci.nih.gov/api/v1/metadata/terminologies
    (ncit 26.06e, 2026-06-29).
- api: cancer-gov:clinical-trials-api
  scheme: path-segment
  current: v2
  evidence: Base URL https://clinicaltrialsapi.cancer.gov/api/v2.
- api: cancer-gov:glossary-api
  scheme: path-segment
  current: v1
  evidence: https://webapis.cancer.gov/glossary/v1 — the same v1 segment is used by drugdictionary, sitewidesearch,
    bestbets and r4r.
deprecation_policy:
  published: false
  note: No deprecation or sunset policy is published for any of these APIs. No RFC 8594 Sunset or Deprecation
    response header was observed on any live request. Removals are announced only in the GDC release notes
    prose.
  evidence: https://docs.gdc.cancer.gov/API/Release_Notes/API_Release_Notes/
sla:
  published: false
  note: No SLA or uptime commitment is published for any NCI API surface.
status_page:
  published: true
  type: api-endpoint
  url: https://api.gdc.cancer.gov/status
  evidence: Live GET returns HTTP 200 with {"status":"OK","tag":"8.5.0","commit":"8f7c2a51...","data_release":"Data
    Release 46.0 - August 10, 2026"}. This is a machine-readable health-and-version endpoint rather than
    a hosted status dashboard; it covers the GDC API only.
  per_service_health:
  - api: cancer-gov:glossary-api
    operationId: HealthCheck_IsHealthy
    path: /HealthCheck
  - api: cancer-gov:drug-dictionary-api
    operationId: Autosuggest_GetStatus
  - api: cancer-gov:sitewide-search-api
    operationId: Search_GetStatus
  - api: cancer-gov:best-bets-api
    operationId: BestBets_GetStatus
  per_service_note: The five webapis.cancer.gov services each declare their own status/health operation
    in their spec, but there is no aggregate dashboard and no incident history anywhere on the estate.
deprecated_operations: []