MCP server for AgentCard v1.0 — the framework-neutral A2A identity standard
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Agents can do it too: POST https://wellknown.network/api/v1/claims with {"agent":"agentcard-mcp-2","method":"well_known_file"} — machine-readable steps at claim.json, guide at /docs/claim.
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# agentcard-mcp > **AgentCard v1.0 identity layer for agent-to-agent (A2A) communication.** > Give any Claude / LLM agent a machine-readable identity using the open [AgentCard](https://github.com/kwailapt/AgentCard) standard. <!-- mcp-name: io.github.kwailapt/agentcard --> [](../../LICENSE) [](https://modelcontextprotocol.io) [](https://github.com/kwailapt/AgentCard) ## What is AgentCard? AgentCard is to A2A communication what HTTP headers are to the web: a standardised, machine-parseable capability declaration that works with any framework (LangChain, CrewAI, AutoGen, MCP, custom). ```json { "agent_id": "01HZQK3P8EMXR9V7T5N2W4J6C0", "name": "WebSearchAgent", "version": "1.0.0", "capabilities": [ {"id": "web.search", "description": "Search the web for current information."}, {"id": "web.scrape", "description": "Extract content from web pages."} ], "endpoint": { "protocol": "https", "url": "https://my-agent.example.com/api" }, "pricing": { "base_cost_joules": 2.854e-21 } } ``` ## Installation ```bash pip install agentcard-mcp ``` ## Quick Start — Claude Desktop Add to `~/Library/Application Support/Claude/claude_desktop_config.json`: ```json { "mcpServers": { "agentcard": { "command": "python", "args": ["-m", "agentcard_mcp"] } } } ``` Then restart Claude Desktop and ask: > *"Register my identity as a code assistant using AgentCard."* ## Tools ### `agentcard_declare` Register your AgentCard identity for this session. ``` Input: card_json (string) — JSON conforming to AgentCard v1.0 schema. Required fields: agent_id — 26-char Crockford Base32 ULID (e.g. 01HZQK3P8EMXR9V7T5N2W4J6C0) name — Display name (1–128 chars) version — Semantic version (e.g. "1.0…
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