generated: '2026-08-02'
method: probed
source: live probes of /.well-known/ and discovery paths on every Atmosphere host
result: none
summary: >-
  Atmosphere publishes no /.well-known/ discovery documents on any host. Every
  canonical path was probed on the marketing site, the API backend, the help
  centre, the venue admin console and the advertising site; all returned 404 or
  an HTML single-page-app shell. No security.txt, no OIDC/OAuth metadata, no
  api-catalog, no ai-plugin.json, no agent card, no llms.txt.
hosts:
- host: https://www.atmosphere.tv
  documents:
  - path: /.well-known/security.txt          # RFC 9116
    status: 404
  - path: /.well-known/openid-configuration
    status: 301
    note: redirects to the same path with a trailing slash; no document served
  - path: /.well-known/oauth-authorization-server   # RFC 8414
    status: 404
  - path: /.well-known/api-catalog            # RFC 9727
    status: 301
    note: redirects to the same path with a trailing slash; no document served
  - path: /.well-known/ai-plugin.json
    status: 404
  - path: /.well-known/agent-card.json        # A2A 1.0.0
    status: 404
  - path: /.well-known/agent.json             # A2A pre-0.3 legacy
    status: 404
  - path: /llms.txt
    status: 404
  - path: /security.txt
    status: 404
  - path: /openapi.json
    status: 404
- host: https://api.atmosphere.tv
  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     # RFC 9728
    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
  - path: /llms.txt
    status: 404
  - path: /openapi.json
    status: 404
  - path: /openapi.yaml
    status: 404
  - path: /swagger.json
    status: 404
  - path: /v1/openapi.json
    status: 404
  - path: /api-docs
    status: 404
  - path: /docs
    status: 404
  - path: /redoc
    status: 404
  - path: /graphql
    status: 404
  - path: /mcp
    status: 404
  - path: /sse
    status: 404
  - path: /status
    status: 200
    note: 'health probe only: {"ping":"pong","mysql":"up","redis":"up"}'
- host: https://help.atmosphere.tv
  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/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
  - path: /llms.txt
    status: 404
- host: https://admin.atmosphere.tv
  documents:
  - path: /.well-known/security.txt
    status: 404
  - path: /.well-known/openid-configuration
    status: 200
    valid: false
    content_type: text/html
    note: SPA catch-all returning the Atmosphere Admin HTML shell - rejected
  - path: /.well-known/oauth-authorization-server
    status: 200
    valid: false
    content_type: text/html
    note: SPA catch-all returning the Atmosphere Admin HTML shell - rejected
  - path: /.well-known/oauth-protected-resource
    status: 200
    valid: false
    content_type: text/html
    note: SPA catch-all returning the Atmosphere Admin HTML shell - rejected
  - path: /.well-known/api-catalog
    status: 200
    valid: false
    content_type: text/html
    note: SPA catch-all returning the Atmosphere Admin HTML shell - rejected
  - path: /.well-known/agent-card.json
    status: 404
  - path: /.well-known/agent.json
    status: 404
  - path: /llms.txt
    status: 404
- host: https://advertise.atmosphere.tv
  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
  - path: /llms.txt
    status: 404
notes: >-
  The four HTTP 200 responses on admin.atmosphere.tv are the dominant
  false-positive shape for this probe: a single-page-app catch-all answers 200
  with text/html for arbitrary /.well-known/* paths. All four bodies are the
  identical "Atmosphere Admin" HTML document, so none is recorded as a published
  discovery document and no AgentCard artifact was written.