Pi previously rejected MCP, but now includes it in core after reevaluating its evolution. The team found MCP’s improvements—like better tool composition and structured data—align with Pi’s needs. Integration enables easier use of Jev and fits Pi’s sandbox model.

While composition remains a challenge, Pi views MCP as closer to Open API with intelligent discovery. The move also supports deferred tool loading and Codemode, addressing limitations in older harnesses. Pi aims to influence MCP’s development by engaging directly rather than observing from afar.