generated: '2026-08-26'
method: probed
source: https://docs.paubox.com/.well-known/agent-card.json
description: >-
  Paubox serves an A2A Agent Card from its documentation host. The card is scoped to the
  documentation site rather than to the API hosts: name, url, provider and
  documentationUrl all point at https://docs.paubox.com/, and its single skill links to a
  Paubox-authored Agent Skill markdown file served from the same host. No card is served
  on www.paubox.com, api.paubox.com or mcp.paubox.com (all 404).

discovery:
  path: /.well-known/agent-card.json
  canonical: true
  host: docs.paubox.com

x-evidence:
  fetched: '2026-08-26'
  url: https://docs.paubox.com/.well-known/agent-card.json
  http_status: 200
  content_type: application/json
  body_bytes: 963
  parses_as: JSON object with AgentCard shape (name, url, version, protocolVersion, capabilities, skills)

card:
  file: paubox-agent-card.json
  name: Paubox API Docs
  url: https://docs.paubox.com/
  version: 1.0.0
  protocol_version: '0.3'
  preferred_transport: HTTP+JSON
  provider: Paubox API Docs
  documentation_url: https://docs.paubox.com/
  capabilities:
    streaming: false
    pushNotifications: false
  skills:
    - id: paubox
      name: Paubox
      url: https://docs.paubox.com/.well-known/agent-skills/paubox/skill.md
      captured: ../skills/paubox-provider-published-skill.md

grade: near-conformant
grade_basis: >-
  Graded against A2A 1.0.0. Hard checks all pass: capabilities is an object,
  protocolVersion is present, skills is an array. preferredTransport,
  defaultInputModes and defaultOutputModes are all present. The card falls short of
  conformant on completeness rather than shape — see deviations[].
deviations:
  - field: protocolVersion
    observed: '0.3'
    note: >-
      Declares A2A 0.3, not 1.0.0. The card is a valid 0.3-era document; it is not
      claiming 1.0 conformance.
  - field: skills[].tags
    observed: '[]'
    note: >-
      The single skill declares an empty tags array. A2A expects tags to be usable for
      skill matching; an empty array gives a routing agent nothing to match on beyond the
      description.
  - field: url / supportedInterfaces[].url
    observed: https://docs.paubox.com/
    note: >-
      The card's url and its one supportedInterface both point at the documentation site
      root, not at an A2A JSON-RPC endpoint or the MCP endpoint at
      https://mcp.paubox.com/mcp. An A2A client following this card reaches an HTML docs
      site, not an agent it can call. The card functions as a discovery signpost to the
      published Agent Skill rather than as an invocable agent descriptor.
  - field: provider.organization
    observed: Paubox API Docs
    note: >-
      Names the documentation property rather than the legal entity (Paubox, Inc.), which
      is what the security page uses.