Farm Credit Administration Authentication

generated: '2026-09-07'
method: probed
source: >-
  https://wgis.fca.gov/arcgis/rest/info?f=json (fetched 2026-09-07, HTTP 200) plus anonymous
  request/response observation against the FCA map services.
summary: >-
  The public FCA map services require NO credential. Every service definition, layer definition and
  /query call in arcgis/ and examples/ was made anonymously and returned 200. The ArcGIS Server
  behind them does advertise token-based security for privileged operations, so the token service is
  recorded here as the escalation path, not as a requirement for public reads.
schemes:
  - id: anonymous
    type: none
    applies_to:
      - GET /arcgis/rest/services
      - GET /arcgis/rest/services/FCA
      - GET /arcgis/rest/services/FCA/{service}/MapServer
      - GET /arcgis/rest/services/FCA/{service}/MapServer/{layerId}
      - GET /arcgis/rest/services/FCA/{service}/MapServer/{layerId}/query
    verified: probed
    evidence: >-
      https://wgis.fca.gov/arcgis/rest/services/FCA/hq/MapServer/0/query?where=1=1&returnCountOnly=true&f=json
      returned {"count":55} with no Authorization header and no token parameter.
  - id: arcgis-token
    type: token
    style: query parameter or header (Esri ArcGIS Server token)
    token_service: https://wgis.fca.gov/arcgis/tokens/
    short_lived_token_validity_minutes: 60
    required_for_public_read: false
    scope_note: >-
      Reported by the server itself in /arcgis/rest/info as
      authInfo.isTokenBasedSecurity=true, tokenServicesUrl=https://wgis.fca.gov/arcgis/tokens/,
      shortLivedTokenValidity=60. This governs administrative and secured services; the three FCA
      folder services are open.
oauth2: false
openid_connect: false
mutual_tls: false
api_keys: false
docs: null
docs_note: >-
  FCA publishes no authentication documentation of any kind for this surface, because it publishes no
  developer documentation of any kind for it. The auth model above was established by probing, not by
  reading. The generic protocol reference is Esri's (ArcGIS REST API), not FCA's.
gaps:
  - No developer portal, API reference, or getting-started page names these endpoints.
  - No /.well-known/oauth-authorization-server or openid-configuration on any FCA host.
  - No rate-limit, quota or terms-of-use statement attached to the anonymous read surface.