Record · mcp-python-sSDK / libraryOpen sourceVerified Sep 23, 2026

MCP Python SDK (official)

The official Python SDK for building MCP servers and clients.

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Sources and review

Checked against public documentation on September 23, 2026. Suitability guidance is our editorial judgment; this is not a performance benchmark or an endorsement.

Best for

Python developers building MCP servers or clients on the reference implementation.

About MCP Python SDK (official)

The official MCP Python SDK implements servers and clients in Python. Version 2, the current stable line, was reworked to support the 2026-07-28 specification and every earlier revision; version 1.x continues on its own branch with critical fixes and security patches. A server fits in about fifteen lines, and a CLI runs servers over stdio or streamable HTTP.

MCP Python SDK (official) is an open-source project written primarily in Python, with 24k stars on GitHub. It was last updated in September 2026.

Install

pip install "mcp[cli]"

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