generated: '2026-07-28'
method: probed
source: https://opensea.io/.well-known/agent-card.json
description: 'A2A Agent Card observed at /.well-known/agent-card.json on opensea.io. Grade is measured
  against the A2A 1.0.0 AgentCard object: ''conformant'' passes every structural check, ''near-conformant''
  is correctly shaped but omits optional fields, ''flavored'' fails a hard check and is an agent card
  in spirit rather than in schema. Provider-published by construction — served from the provider''s own
  host; nothing here is derived or generated.'
discovery:
  path: /.well-known/agent-card.json
  canonical: true
  host: opensea.io
conformance:
  spec: A2A 1.0.0
  grade: near-conformant
  protocol_version: 0.2.5
  preferred_transport: streamable-http
  deviations:
  - nonstandard-supportedInterfaces
card:
  name: OpenSea
  description: Discover, buy, sell, and mint NFTs and swap tokens across dozens of blockchains. The OpenSea
    agent exposes real-time NFT, token, collection, wallet, and marketplace data and actions via the OpenSea
    MCP server.
  url: https://mcp.opensea.io/mcp
  version: 1.0.0
  documentation_url: https://docs.opensea.io/reference/mcp
  skills: 7
  file: opensea-agent-card.json
x-evidence:
  fetched: '2026-07-28'
  url: https://opensea.io/.well-known/agent-card.json
  http_status: 200
  content_type: application/json
  note: Verbatim body saved alongside this manifest. No field inferred.