modelcontextprotocol/python-sdk

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Python implementation of the Model Context Protocol (MCP)

This README documents v2 of the MCP Python SDK — a pre-release (alpha/beta) line under active development. Do not use v2 in production. Pre-releases are published to PyPI as 2.0.0aN / 2.0.0bN, and each pre-release may contain breaking changes from the previous one. Pin an exact version and expect to update your code when you bump the pin. > v1.x is the only stable release line and remains recommended for production. It lives on the v1.x branch and continues to receive critical bug fixes and security patches; see the v1.x README for its documentation. pip and uv don't select a pre-release unless you explicitly request one, so…

Excerpted from github.com/modelcontextprotocol/python-sdk