01 · ABOUT

What MCP Python SDK does

The official Python SDK for the Model Context Protocol, used to build MCP servers that expose tools, resources and prompts and MCP clients that connect to them. Its v2 release line implements the 2026-07-28 protocol revision and answers both 2025-era and 2026-era clients from the same stdio or Streamable HTTP server.

Why teams reach for it: It is the official Python SDK for MCP and covers both sides of the protocol in one package: a server is two type-hinted Python functions with no JSON Schema, parsing, validation or protocol code to write, and the same package is a full client over stdio, Streamable HTTP and SSE.

LibraryOpen SourcePythonMCP Server & Client
02 · TECHNICAL SPECIFICATIONS

How MCP Python SDK compares

Fields the vendor doesn't document are left blank here rather than guessed — a blank means nothing verified, not a "no."

Language
Python
Official Sdk
Yes
Spec Revision Implemented
2026-07-28
Transports
SSE, Streamable HTTP, stdio
Builds Servers
Yes
Builds Clients
Yes
Auth Helpers
Built-in
Generates From Openapi
No
Mcp Apps Support
Yes
Server Composition
No
Package Registry
PyPI
Package Name
mcp
03 · NEW TO MCP?
What will you use to implement the protocol?

A framework or SDK gives developers pre-built code for creating an MCP server or client, so they don't have to implement the protocol from scratch.