generated: '2026-09-17'
method: probed
source: https://docs.celestia.org/.well-known/api-catalog
description: >-
  Probe of the RFC 8615 /.well-known/ namespace plus /llms.txt on every host this record
  knows: the registrable domain and www, the documentation host, the blog host, the forum
  host, and the historical Node API reference host. docs.celestia.org serves a real RFC 9727
  api-catalog linkset pointing at the first-party OpenRPC specification, the llms.txt index,
  the full LLM context dump, and a published Agent Skill. Every other path 404s.
hosts:
- host: celestia.org
  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: 200
    note: >-
      Marketing-site LLM index (4,083 bytes). Not saved here; the documentation
      llms.txt in llms/celestia-llms.txt is the developer-facing one.
- host: www.celestia.org
  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: 200
- host: docs.celestia.org
  documents:
  - path: /.well-known/api-catalog
    status: 200
    file: celestia-api-catalog.json
    content_type: application/json
    note: >-
      RFC 9727 linkset. service-desc points at the Celestia Node API OpenRPC
      specification (openrpc-v0.31.4.json); describedby points at llms.txt,
      llms-full.txt and SKILL.md; source-code at github.com/celestiaorg/docs.
  - path: /.well-known/agent-skills/index.json
    status: 200
    file: celestia-agent-skills-index.json
    content_type: application/json
    note: >-
      agentskills.io discovery 0.2.0 index declaring one skill-md skill with a
      sha256 digest. The digest matches the copy saved at skills/celestia.md byte
      for byte.
  - path: /llms.txt
    status: 200
    note: Saved verbatim to llms/celestia-llms.txt.
  - 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/ai-plugin.json
    status: 404
  - path: /.well-known/agent-card.json
    status: 404
  - path: /.well-known/agent.json
    status: 404
- host: blog.celestia.org
  documents:
  - path: /.well-known/security.txt
    status: 404
  - path: /.well-known/api-catalog
    status: 404
  - path: /.well-known/agent-card.json
    status: 404
  - path: /.well-known/agent.json
    status: 404
- host: forum.celestia.org
  documents:
  - path: /.well-known/security.txt
    status: 404
  - path: /.well-known/api-catalog
    status: 404
  - path: /.well-known/agent-card.json
    status: 404
  - path: /.well-known/agent.json
    status: 404
- host: node-rpc-docs.celestia.org
  documents:
  - path: /.well-known/agent-card.json
    status: 0
    note: >-
      Host does not resolve. dig A/CNAME against 8.8.8.8 returns NOERROR with zero
      answers while docs.celestia.org resolves normally, so this is the subdomain
      being retired rather than a local resolver failure. This host was the
      humanURL and Documentation pointer on all ten API entries in this record;
      those pointers have been repointed at
      https://docs.celestia.org/build/rpc/node-api/.
findings:
  agent_card: none
  api_catalog: served
  security_txt: none
  oauth_metadata: none
  ai_plugin: none