generated: '2026-09-19'
method: probed
source: Live GET probes of the named /.well-known/* path list on every host the record knows, 2026-09-19 (re-issued at write
  time so each status below is the one returned).
summary:
  hosts_probed: 5
  paths_per_host: 19
  documents_saved: 35
  note: 'Delx serves an unusually complete discovery surface. delx.ai, api.delx.ai and ontology.delx.ai each answer RFC 8414
    oauth-authorization-server and RFC 9728 oauth-protected-resource metadata (all declaring delx:oauth_supported false and
    a single ''public'' scope: the documents exist to advertise the access mode and an agent_auth block, not an OAuth flow),
    an RFC 9116 security.txt (Expires 2027-02-17 on delx.ai/ontology, 2027-07-29 on api), an RFC 9727 api-catalog linkset,
    an MCP server card, an agentskills.io discovery index and an A2A agent card at both the canonical and legacy paths. api.delx.ai
    is the MCP resource host and the A2A host, so its rows are the ones RFC 9728 cares about. commerce.delx.ai serves OAuth
    metadata, an api-catalog and its own agent card but no security.txt. www.delx.ai does not respond at all. Misses that
    matter: no APIs.json at any of the three probed locations on any host, no AAuth resource document, and no UCP/ACP manifests
    even though the agent card''s commerce.protocols lists ucp and acp. The 200s are real documents, not a catch-all: a negative-control
    path 404s on every host, and 404s come back as real JSON/plain-text 404 bodies (api, commerce) or the site''s 404 page
    (delx.ai, ontology).'
  pointer_basis: 'WellKnown and SecurityTxt pointers are earned: real security.txt, OAuth metadata, api-catalog, MCP card
    and agent cards were fetched and saved.'
  host_quirks:
  - api.delx.ai serves a byte-identical body at /.well-known/openid-configuration and /.well-known/oauth-authorization-server
    (the RFC 8414 document is aliased onto the OIDC path).
  - delx.ai /.well-known/openid-configuration declares issuer https://ontology.delx.ai and delx:oidc_supported false.
  - delx.ai /.well-known/acp.json 308-redirects to api.delx.ai/.well-known/acp.json, which 404s.
  - 'delx.ai and ontology.delx.ai serve additional non-standard discovery documents not in the closed probe list: /.well-known/delx-capabilities.json
    (1.8 MB tool registry), /.well-known/a2a-agent-card.json and /.well-known/a2a.json (compatibility aliases), /spec/openapi.json,
    /spec/mcp.json, /spec/a2a.json, /agents.txt, /auth.md, /research/catalog.json, /solutions/catalog.json. api.delx.ai adds
    /.well-known/x402 (6.2 MB x402 resource manifest), /x402-portfolio.json, /openapi.x402.json and /openapi.protocol.json.'
  - delx.ai /openapi.json (and ontology.delx.ai /openapi.json) is an OpenAPI 3.1.0 document with ZERO paths - only securitySchemes,
    four empty schemas and an x-delx discovery/tools block. The api-catalog advertises it as the Delx Agent Utilities OpenAPI;
    the real contracts are api.delx.ai/openapi.protocol.json (15 ops) and api.delx.ai/openapi.json = openapi.x402.json (987
    ops).
hosts:
- host: delx.ai
  role: Registrable domain / Website; also fronts (proxies or mirrors) the ontology docs discovery documents
  documents:
  - path: /.well-known/security.txt
    status: 200
    content_type: text/plain
    bytes: 304
    file: delx-ai-security.txt
  - path: /.well-known/openid-configuration
    status: 200
    content_type: application/json
    bytes: 433
    file: delx-ai-openid-configuration.json
  - path: /.well-known/oauth-authorization-server
    status: 200
    content_type: application/json
    bytes: 971
    file: delx-ai-oauth-authorization-server.json
  - path: /.well-known/oauth-protected-resource
    status: 200
    content_type: application/json
    bytes: 450
    file: delx-ai-oauth-protected-resource.json
  - path: /.well-known/api-catalog
    status: 200
    content_type: application/linkset+json
    bytes: 2343
    file: delx-ai-api-catalog.json
  - path: /.well-known/ai-plugin.json
    status: 200
    content_type: application/json
    bytes: 1880
    file: delx-ai-ai-plugin.json
  - path: /.well-known/ucp.json
    status: 404
    content_type: text/html
    bytes: 51890
  - path: /.well-known/acp.json
    status: 308
    content_type: text/plain
    bytes: 15
    redirect: https://api.delx.ai/.well-known/acp.json
  - path: /.well-known/aauth-resource.json
    status: 404
    content_type: text/html
    bytes: 51890
  - path: /.well-known/apis.json
    status: 404
    content_type: text/html
    bytes: 51890
  - path: /apis.json
    status: 404
    content_type: text/html
    bytes: 20752
  - path: /apis.yml
    status: 404
    content_type: text/html
    bytes: 20752
  - path: /.well-known/agent-card.json
    status: 200
    content_type: application/json
    bytes: 21532
    file: (identical body to api.delx.ai card except the extra ontology block; the api.delx.ai copy is saved at ../a2a/delx-ai-agent-card.json)
  - path: /.well-known/agent.json
    status: 200
    content_type: application/json
    bytes: 21532
    note: Served (200, non-HTML) but not saved as a separate file; see notes.
  - path: /.well-known/mcp/server-card.json
    status: 200
    content_type: application/json
    bytes: 2781
    file: delx-ai-mcp-server-card.json
  - path: /.well-known/mcp.json
    status: 200
    content_type: application/json
    bytes: 2781
    note: Served (200, non-HTML) but not saved as a separate file; see notes.
  - path: /.well-known/agent-skills/index.json
    status: 200
    content_type: application/json
    bytes: 914
    file: delx-ai-agent-skills-index.json
  - path: /.well-known/ai-catalog.json
    status: 200
    content_type: application/json
    bytes: 3647
    file: delx-ai-ai-catalog.json
  - path: /llms.txt
    status: 200
    content_type: text/plain
    bytes: 16674
    file: ../llms/delx-ai-llms.txt
  path_echo_control:
    path: /.well-known/delx-ai-negative-control-e9b61f72.json
    status: 404
    result: passed
- host: www.delx.ai
  role: www variant
  documents:
  - path: /.well-known/security.txt
    status: 0
    note: Connection failed (no response); host does not resolve or refuses TLS.
  - path: /.well-known/openid-configuration
    status: 0
    note: Connection failed (no response); host does not resolve or refuses TLS.
  - path: /.well-known/oauth-authorization-server
    status: 0
    note: Connection failed (no response); host does not resolve or refuses TLS.
  - path: /.well-known/oauth-protected-resource
    status: 0
    note: Connection failed (no response); host does not resolve or refuses TLS.
  - path: /.well-known/api-catalog
    status: 0
    note: Connection failed (no response); host does not resolve or refuses TLS.
  - path: /.well-known/ai-plugin.json
    status: 0
    note: Connection failed (no response); host does not resolve or refuses TLS.
  - path: /.well-known/ucp.json
    status: 0
    note: Connection failed (no response); host does not resolve or refuses TLS.
  - path: /.well-known/acp.json
    status: 0
    note: Connection failed (no response); host does not resolve or refuses TLS.
  - path: /.well-known/aauth-resource.json
    status: 0
    note: Connection failed (no response); host does not resolve or refuses TLS.
  - path: /.well-known/apis.json
    status: 0
    note: Connection failed (no response); host does not resolve or refuses TLS.
  - path: /apis.json
    status: 0
    note: Connection failed (no response); host does not resolve or refuses TLS.
  - path: /apis.yml
    status: 0
    note: Connection failed (no response); host does not resolve or refuses TLS.
  - path: /.well-known/agent-card.json
    status: 0
    note: Connection failed (no response); host does not resolve or refuses TLS.
  - path: /.well-known/agent.json
    status: 0
    note: Connection failed (no response); host does not resolve or refuses TLS.
  - path: /.well-known/mcp/server-card.json
    status: 0
    note: Connection failed (no response); host does not resolve or refuses TLS.
  - path: /.well-known/mcp.json
    status: 0
    note: Connection failed (no response); host does not resolve or refuses TLS.
  - path: /.well-known/agent-skills/index.json
    status: 0
    note: Connection failed (no response); host does not resolve or refuses TLS.
  - path: /.well-known/ai-catalog.json
    status: 0
    note: Connection failed (no response); host does not resolve or refuses TLS.
  - path: /llms.txt
    status: 0
    note: Connection failed (no response); host does not resolve or refuses TLS.
  path_echo_control:
    path: /.well-known/delx-ai-negative-control-42ecc916.json
    status: 0
    result: passed
- host: api.delx.ai
  role: API baseURL host, OpenAPI servers[] host, MCP server host (RFC 9728 resource server) and A2A JSON-RPC host
  documents:
  - path: /.well-known/security.txt
    status: 200
    content_type: text/plain
    bytes: 149
    file: delx-ai-api-security.txt
  - path: /.well-known/openid-configuration
    status: 200
    content_type: application/json
    bytes: 1090
    file: delx-ai-api-openid-configuration.json
  - path: /.well-known/oauth-authorization-server
    status: 200
    content_type: application/json
    bytes: 1090
    file: delx-ai-api-oauth-authorization-server.json
  - path: /.well-known/oauth-protected-resource
    status: 200
    content_type: application/json
    bytes: 453
    file: delx-ai-api-oauth-protected-resource.json
  - path: /.well-known/api-catalog
    status: 200
    content_type: application/linkset+json
    bytes: 834
    file: delx-ai-api-api-catalog.json
  - path: /.well-known/ai-plugin.json
    status: 404
    content_type: text/plain
    bytes: 9
  - path: /.well-known/ucp.json
    status: 404
    content_type: text/plain
    bytes: 9
  - path: /.well-known/acp.json
    status: 404
    content_type: text/plain
    bytes: 9
  - path: /.well-known/aauth-resource.json
    status: 404
    content_type: text/plain
    bytes: 9
  - path: /.well-known/apis.json
    status: 404
    content_type: text/plain
    bytes: 9
  - path: /apis.json
    status: 404
    content_type: text/plain
    bytes: 9
  - path: /apis.yml
    status: 404
    content_type: text/plain
    bytes: 9
  - path: /.well-known/agent-card.json
    status: 200
    content_type: application/json
    bytes: 20021
    file: ../a2a/delx-ai-agent-card.json
  - path: /.well-known/agent.json
    status: 200
    content_type: application/json
    bytes: 20021
    note: Served (200, non-HTML) but not saved as a separate file; see notes.
  - path: /.well-known/mcp/server-card.json
    status: 200
    content_type: application/json
    bytes: 31647
    file: delx-ai-api-mcp-server-card.json
  - path: /.well-known/mcp.json
    status: 200
    content_type: application/json
    bytes: 1322
    file: delx-ai-api-mcp.json
  - path: /.well-known/agent-skills/index.json
    status: 200
    content_type: application/json
    bytes: 782
    file: delx-ai-api-agent-skills-index.json
  - path: /.well-known/ai-catalog.json
    status: 200
    content_type: application/json
    bytes: 4374
    file: delx-ai-api-ai-catalog.json
  - path: /llms.txt
    status: 200
    content_type: text/plain
    bytes: 5619
    file: ../llms/delx-ai-api-llms.txt
  path_echo_control:
    path: /.well-known/delx-ai-negative-control-1894ccd2.json
    status: 404
    result: passed
- host: ontology.delx.ai
  role: Documentation host (Delx Protocol / Ontology property)
  documents:
  - path: /.well-known/security.txt
    status: 200
    content_type: text/plain
    bytes: 304
    file: delx-ai-security.txt
    note: Byte-identical to the delx.ai copy; saved once under that name.
  - path: /.well-known/openid-configuration
    status: 200
    content_type: application/json
    bytes: 433
    file: delx-ai-openid-configuration.json
    note: Byte-identical to the delx.ai copy; saved once under that name.
  - path: /.well-known/oauth-authorization-server
    status: 200
    content_type: application/json
    bytes: 430
    file: delx-ai-ontology-oauth-authorization-server.json
  - path: /.well-known/oauth-protected-resource
    status: 200
    content_type: application/json
    bytes: 469
    file: delx-ai-ontology-oauth-protected-resource.json
  - path: /.well-known/api-catalog
    status: 200
    content_type: application/linkset+json
    bytes: 2343
    file: delx-ai-api-catalog.json
    note: Byte-identical to the delx.ai copy; saved once under that name.
  - path: /.well-known/ai-plugin.json
    status: 200
    content_type: application/json
    bytes: 1880
    file: delx-ai-ai-plugin.json
    note: Byte-identical to the delx.ai copy; saved once under that name.
  - path: /.well-known/ucp.json
    status: 404
    content_type: text/html
    bytes: 51890
  - path: /.well-known/acp.json
    status: 308
    content_type: text/plain
    bytes: 15
    redirect: https://api.delx.ai/.well-known/acp.json
  - path: /.well-known/aauth-resource.json
    status: 404
    content_type: text/html
    bytes: 51890
  - path: /.well-known/apis.json
    status: 404
    content_type: text/html
    bytes: 51890
  - path: /apis.json
    status: 404
    content_type: text/html
    bytes: 51890
  - path: /apis.yml
    status: 404
    content_type: text/html
    bytes: 51890
  - path: /.well-known/agent-card.json
    status: 200
    content_type: application/json
    bytes: 21532
    note: Served (200, non-HTML) but not saved as a separate file; see notes.
  - path: /.well-known/agent.json
    status: 200
    content_type: application/json
    bytes: 21532
    note: Served (200, non-HTML) but not saved as a separate file; see notes.
  - path: /.well-known/mcp/server-card.json
    status: 200
    content_type: application/json
    bytes: 2781
    file: delx-ai-mcp-server-card.json
    note: Byte-identical to the delx.ai copy; saved once under that name.
  - path: /.well-known/mcp.json
    status: 200
    content_type: application/json
    bytes: 2781
    note: Served (200, non-HTML) but not saved as a separate file; see notes.
  - path: /.well-known/agent-skills/index.json
    status: 200
    content_type: application/json
    bytes: 914
    file: delx-ai-agent-skills-index.json
    note: Byte-identical to the delx.ai copy; saved once under that name.
  - path: /.well-known/ai-catalog.json
    status: 404
    content_type: text/html
    bytes: 51890
  - path: /llms.txt
    status: 200
    content_type: text/plain
    bytes: 11325
    file: ../llms/delx-ai-ontology-llms.txt
  path_echo_control:
    path: /.well-known/delx-ai-negative-control-f10ff1c3.json
    status: 404
    result: passed
- host: commerce.delx.ai
  role: Delx Commerce storefront (named as related_services in the Protocol OpenAPI and in the protected-resource notes)
  documents:
  - path: /.well-known/security.txt
    status: 404
    content_type: text/plain
    bytes: 79
  - path: /.well-known/openid-configuration
    status: 404
    content_type: text/plain
    bytes: 79
  - path: /.well-known/oauth-authorization-server
    status: 200
    content_type: application/json
    bytes: 1306
    file: delx-ai-commerce-oauth-authorization-server.json
  - path: /.well-known/oauth-protected-resource
    status: 200
    content_type: application/json
    bytes: 574
    file: delx-ai-commerce-oauth-protected-resource.json
  - path: /.well-known/api-catalog
    status: 200
    content_type: application/linkset+json
    bytes: 1860
    file: delx-ai-commerce-api-catalog.json
  - path: /.well-known/ai-plugin.json
    status: 404
    content_type: text/plain
    bytes: 79
  - path: /.well-known/ucp.json
    status: 404
    content_type: text/plain
    bytes: 79
  - path: /.well-known/acp.json
    status: 404
    content_type: text/plain
    bytes: 79
  - path: /.well-known/aauth-resource.json
    status: 404
    content_type: text/plain
    bytes: 79
  - path: /.well-known/apis.json
    status: 404
    content_type: text/plain
    bytes: 79
  - path: /apis.json
    status: 404
    content_type: text/plain
    bytes: 79
  - path: /apis.yml
    status: 404
    content_type: text/plain
    bytes: 79
  - path: /.well-known/agent-card.json
    status: 200
    content_type: application/json
    bytes: 6402
    file: ../a2a/delx-ai-commerce-agent-card.json
  - path: /.well-known/agent.json
    status: 200
    content_type: application/json
    bytes: 4566
    note: Served (200, non-HTML) but not saved as a separate file; see notes.
  - path: /.well-known/mcp/server-card.json
    status: 200
    content_type: application/json
    bytes: 1246
    note: Served (200, non-HTML) but not saved as a separate file; see notes.
  - path: /.well-known/mcp.json
    status: 404
    content_type: text/plain
    bytes: 79
  - path: /.well-known/agent-skills/index.json
    status: 200
    content_type: application/json
    bytes: 1699
    note: Served (200, non-HTML) but not saved as a separate file; see notes.
  - path: /.well-known/ai-catalog.json
    status: 200
    content_type: application/json
    bytes: 4525
    note: Served (200, non-HTML) but not saved as a separate file; see notes.
  - path: /llms.txt
    status: 200
    content_type: text/plain
    bytes: 22057
    note: Served (200, non-HTML) but not saved as a separate file; see notes.
  path_echo_control:
    path: /.well-known/delx-ai-negative-control-cce8de06.json
    status: 404
    result: passed