> A2A is an open protocol that complements Anthropic's Model Context Protocol (M... | Hacker News

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flakiness on April 9, 2025 | parent | context | favorite | on: The Agent2Agent Protocol (A2A)

> A2A is an open protocol that complements Anthropic's Model Context Protocol (MCP), which provides helpful tools and context to agents.

A "server" sample: https://github.com/google/A2A/tree/main/samples/js/src/serve...

So it looks like the point is that it keeps the connection/context open for multiple interactions vs. MCP, which is more like pure request-response?

esafak on April 9, 2025 | [–]

MCP is stateful. They are currently developing stateless support. https://github.com/modelcontextprotocol/modelcontextprotocol...

flakiness on April 9, 2025 | | [–]

Oh good to know, thanks for the clarification!

qntty on April 9, 2025 | [–]

I don't know if it would be right to call MCP pure request/response, since unlike HTTP, it's a stateful protocol.

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