generated: '2026-07-27'
method: searched
source: live probes of the Hydro-Québec open data API host and the corporate host
note: >-
  The open data portal (donnees.hydroquebec.com) is an Opendatasoft-hosted platform, so the
  /.well-known/ surface it serves is the platform vendor's, not one Hydro-Québec authored.
  It is recorded verbatim because it is what a client resolving the API host actually receives.
  www.hydroquebec.com answers every unknown path with an HTTP 200 soft-404 HTML page, so
  probes against that host were validated by page title and are recorded as not-present.
hosts:
- host: https://donnees.hydroquebec.com
  role: api + developer portal
  documents:
  - path: /.well-known/security.txt
    status: 200
    file: hydro-quebec-security.txt
    spec: RFC 9116
  - path: /.well-known/openid-configuration
    status: 404
  - path: /.well-known/oauth-authorization-server
    status: 404
  - path: /.well-known/api-catalog
    status: 404
  - path: /.well-known/ai-plugin.json
    status: 404
- host: https://www.hydroquebec.com
  role: corporate website
  documents:
  - path: /.well-known/security.txt
    status: 200
    present: false
    note: soft-404 — returns the "Erreur 404 | Hydro-Québec" HTML page, not an RFC 9116 document
  - path: /.well-known/api-catalog
    status: 200
    present: false
    note: soft-404 HTML page
adjacent_discovery:
- path: /api/v2/swagger.json
  status: 200
  host: https://donnees.hydroquebec.com
  note: OpenAPI 3.0.3 for Explore API v2.0 (harvested to openapi/)
- path: /api/explore/v2.1/swagger.json
  status: 200
  host: https://donnees.hydroquebec.com
  note: OpenAPI 3.0.3 for Explore API v2.1 (harvested to openapi/)
- path: /api/v1/swagger.json
  status: 404
  host: https://donnees.hydroquebec.com
  note: no machine-readable description published for the legacy Search API v1
- path: /api/explore/v2.1/catalog/exports/dcat
  status: 200
  host: https://donnees.hydroquebec.com
  note: DCAT (RDF/XML) catalog export — the de facto machine-readable dataset catalog
- path: /oauth2/authorize/
  status: 302
  host: https://donnees.hydroquebec.com
  note: platform OAuth2 authorization endpoint (live, redirects to login)
- path: /oauth2/token/
  status: 405
  host: https://donnees.hydroquebec.com
  note: platform OAuth2 token endpoint (live, POST only)