generated: '2026-08-04'
method: searched
source: live probes of every apis.yml host and the Flix web/docs hosts
notes: >-
  developer.api.flixbus.com is a client-rendered single-page application whose server
  answers HTTP 200 with the same 4,684-byte HTML shell for every path, including every
  /.well-known/* path. Those 200s are NOT documents and are recorded here as
  spa_catch_all so a later run does not mistake them for hits.
hosts:
- host: https://global.flixbus.com
  documents:
  - path: /.well-known/security.txt
    status: 200
    content_type: text/plain
    file: flixbus-security.txt
  - path: /.well-known/openid-configuration
    status: 404
  - path: /.well-known/oauth-authorization-server
    status: 404
  - path: /.well-known/oauth-protected-resource
    status: 404
  - path: /.well-known/api-catalog
    status: 404
  - path: /.well-known/ai-plugin.json
    status: 404
  - path: /.well-known/agent-card.json
    status: 404
  - path: /.well-known/agent.json
    status: 404
- host: https://global.api.flixbus.com
  note: Flix API gateway; anonymous root returns 403, /api/* returns 401 Unauthorized
  documents:
  - path: /.well-known/security.txt
    status: 404
  - path: /.well-known/openid-configuration
    status: 404
  - path: /.well-known/oauth-authorization-server
    status: 404
  - path: /.well-known/oauth-protected-resource
    status: 404
  - path: /.well-known/api-catalog
    status: 404
  - path: /.well-known/ai-plugin.json
    status: 404
  - path: /.well-known/agent-card.json
    status: 404
  - path: /.well-known/agent.json
    status: 404
- host: https://help.flixbus.com
  note: >-
    Flix help centre on a Salesforce Experience Cloud tenant. The OIDC discovery document
    is the Salesforce identity provider for the help centre itself (issuer
    https://help.flixbus.com, Salesforce scope names such as cdp_api / pardot_api /
    lightning) — it is NOT the authorization server for the Flix partner API.
  documents:
  - path: /.well-known/openid-configuration
    status: 200
    content_type: application/json
    file: flixbus-openid-configuration.json
  - path: /.well-known/security.txt
    status: 401
  - path: /.well-known/oauth-authorization-server
    status: 401
  - path: /.well-known/oauth-protected-resource
    status: 401
  - path: /.well-known/api-catalog
    status: 401
  - path: /.well-known/agent-card.json
    status: 401
  - path: /.well-known/agent.json
    status: 401
- host: https://gtfs.gis.flix.tech
  note: >-
    S3-backed GTFS distribution host. Object keys resolve (gtfs_generic_eu.zip,
    gtfs_generic_us.zip, gtfs_generic_gb.zip); every other path including /.well-known/*
    returns 403 AccessDenied with an application/xml body.
  documents:
  - path: /.well-known/security.txt
    status: 403
  - path: /.well-known/openid-configuration
    status: 403
  - path: /.well-known/api-catalog
    status: 403
  - path: /.well-known/agent-card.json
    status: 403
  - path: /.well-known/agent.json
    status: 403
- host: https://developer.api.flixbus.com
  spa_catch_all: true
  note: >-
    Every path returns 200 text/html with the identical 4,684-byte React shell. No
    /.well-known document is actually served here; do not treat these 200s as hits.
  documents:
  - path: /.well-known/security.txt
    status: 200
    verdict: spa-shell-html-not-a-document
  - path: /.well-known/agent-card.json
    status: 200
    verdict: spa-shell-html-not-a-document
  - path: /.well-known/agent.json
    status: 200
    verdict: spa-shell-html-not-a-document
  - path: /.well-known/openid-configuration
    status: 200
    verdict: spa-shell-html-not-a-document
  - path: /.well-known/api-catalog
    status: 200
    verdict: spa-shell-html-not-a-document
x-evidence:
  fetched: '2026-08-04'
  agent_card_found: false
  security_txt_found: true