generated: '2026-08-14'
method: probed
source: https://api.builtwith.com/.well-known/agent-card.json
discovery:
  path: /.well-known/agent-card.json
  canonical: true
  host: api.builtwith.com
  also_served_at:
  - https://builtwith.com/.well-known/agent-card.json
  - https://api.builtwith.com/.well-known/agent.json
  - https://builtwith.com/.well-known/agent.json
  note: >-
    All four paths return the byte-identical document (md5 64f4a6e4242bba9021f3bafb288c3b27),
    so BuiltWith serves both the A2A canonical path and the pre-0.3 legacy path on both
    the API host and the marketing host. The card is also advertised from the provider's
    own RFC 9727 api-catalog linkset.
conformance:
  spec: A2A 1.0.0
  grade: conformant
  protocol_version: 0.3.0
  preferred_transport: HTTP+JSON
  checks:
    capabilities_is_object: true
    protocol_version_present: true
    skills_is_array: true
    preferred_transport_present: true
    default_input_modes_present: true
    default_output_modes_present: true
  deviations: []
card:
  name: BuiltWith
  url: https://api.builtwith.com/mcp
  version: 1.3.0
  provider: BuiltWith Pty Ltd
  documentation_url: https://api.builtwith.com/llms.txt
  skills: 7
  skill_ids:
  - domain-technology-profile
  - technology-changes
  - website-relationships
  - technology-lists-and-trends
  - company-and-firmographics
  - keywords-and-recommendations
  - natural-language-site-discovery
  security_schemes:
  - name: builtwithApiKey
    type: http
    scheme: bearer
  additional_interfaces:
  - url: https://api.builtwith.com/mcp
    transport: HTTP+JSON
  file: builtwith-agent-card.json
notes:
- >-
  The card's url and its only additionalInterface both point at the MCP endpoint
  (https://api.builtwith.com/mcp) rather than a dedicated A2A JSON-RPC endpoint, so the
  agent surface this card advertises is the MCP server captured in mcp/builtwith-mcp.yml.
x-evidence:
  fetched: '2026-08-14'
  url: https://api.builtwith.com/.well-known/agent-card.json
  http_status: 200
  content_type: application/json