MCP

The open standard for connecting LLM apps to tools, resources and prompts; start here for transports and auth.

Official collection of reference servers (filesystem, git, fetch, memory) to learn from or run directly.

Official SDK for building MCP servers and clients in TypeScript with stdio and streamable HTTP transports.

Official Python SDK including FastMCP-style decorators for quickly exposing tools.

Developer tool to connect to any MCP server and interactively test tools, resources and prompts.

Pythonic high-level framework for MCP servers and clients with auth, proxying and composition.

GitHub's official server exposing repos, issues, PRs and Actions to agents.

Microsoft's server that lets agents drive a browser via accessibility snapshots instead of screenshots.

Official community registry for discovering published MCP servers.

Hub for finding, hosting and installing MCP servers into clients.

MCP server that injects up-to-date, version-specific library docs into coding agents' context.

Guide to building and deploying remote MCP servers with OAuth on Cloudflare Workers.