generated: '2026-08-27'
method: probed
source: https://redocly.com/.well-known/agent-card.json
provider: Redocly
providerId: redocly
name: Redocly A2A Agent Card
description: Redocly serves an A2A agent card from its own host. Redocly runs redocly.com on Realm, the product it sells, so this card is Realm's agent-discovery feature exercised on the vendor's own site. The card names one published agent skill (redocly-cli) and, in capabilities.extensions, points at the Model Context Protocol server at https://redocly.com/mcp.
card:
  file: a2a/redocly-agent-card.json
discovery:
  path: /.well-known/agent-card.json
  canonical: true
  host: redocly.com
x-evidence:
  fetched: '2026-08-27'
  url: https://redocly.com/.well-known/agent-card.json
  http_status: 200
  content_type: application/json
agent:
  name: Redocly
  url: https://redocly.com/a2a
  documentationUrl: https://redocly.com/
  version: 0.0.1
  protocolVersion: 0.3.0
  preferredTransport: HTTP+JSON
  skills:
  - id: redocly-cli
    name: redocly-cli
    url: https://redocly.com/.well-known/agent-skills/redocly-cli/SKILL.md
grade:
  against: A2A 1.0.0
  result: conformant
  checks:
  - check: capabilities is an object
    pass: true
  - check: protocolVersion present
    pass: true
    value: 0.3.0
  - check: skills is an array
    pass: true
    count: 1
  - check: preferredTransport present (optional)
    pass: true
    value: HTTP+JSON
  - check: defaultInputModes present (optional)
    pass: true
    value:
    - text/plain
  - check: defaultOutputModes present (optional)
    pass: true
    value:
    - text/plain
deviations:
- field: capabilities.extensions[0].uri
  note: The MCP endpoint is advertised through an A2A capability extension (uri https://modelcontextprotocol.io, params.url https://redocly.com/mcp) rather than as an A2A transport. This is a legitimate use of the extension slot, not a deviation from the schema, but it means an A2A-only client gets a discovery pointer rather than a callable A2A surface.
- field: agent.url
  note: url is https://redocly.com/a2a. That path was probed on 2026-08-27 and returned the Realm SPA HTML shell rather than an A2A JSON-RPC endpoint, so the declared A2A transport could not be exercised anonymously.
- field: skills[0].tags
  note: Empty array; the card carries no skill tags.