>MCP is just RPC over a long-lived connection, most cases being a Websocket. My ... | Hacker News

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		EE84M3i 6 months ago \| parent \| context \| favorite \| on: MCP is the coming of Web 2.0 2.0 >MCP is just RPC over a long-lived connection, most cases being a Websocket. My impression was that MCP used SSE and that not using websockets was one of the main reasons it isn't enterprise ready - because it requires maintaining server side state which makes it difficult to deploy at scale. Did they change it to websockets? https://raz.sh/blog/2025-05-02_a_critical_look_at_mcp

mdaniel 6 months ago [–]

Not "change" but it does seem to be an option https://modelcontextprotocol.io/specification/2025-03-26/bas...

As for the stateless part, they heard you and made sure to bring sessions back to SSE: https://modelcontextprotocol.io/specification/2025-03-26/bas...

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