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Model Context Protocol

An open protocol that enables seamless integration between LLM applications and external data sources and tools.

Model Context Protocol

MCP Logo

A protocol for seamless integration between LLM applications and external data sources

Documentation | Specification | Discussions

The Model Context Protocol (MCP) is an open protocol that enables seamless integration between LLM applications and external data sources and tools. Whether you're building an AI-powered IDE, enhancing a chat interface, or creating custom AI workflows, MCP provides a standardized way to connect LLMs with the context they need.

Getting Started

Project Structure

Contributing

We welcome contributions of all kinds! Whether you want to fix bugs, improve documentation, or propose new features, please see our contributing guide to get started.

Have questions? Join the discussion in our community forum.

About

The Model Context Protocol is an open source project run by Anthropic, PBC. and open to contributions from the entire community.

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  1. modelcontextprotocol modelcontextprotocol Public

    Specification and documentation for the Model Context Protocol

    TypeScript 6.2k 1.1k

  2. servers servers Public

    Model Context Protocol Servers

    TypeScript 72.6k 8.7k

  3. python-sdk python-sdk Public

    The official Python SDK for Model Context Protocol servers and clients

    Python 20k 2.8k

  4. typescript-sdk typescript-sdk Public

    The official TypeScript SDK for Model Context Protocol servers and clients

    TypeScript 10.7k 1.4k

  5. csharp-sdk csharp-sdk Public

    The official C# SDK for Model Context Protocol servers and clients. Maintained in collaboration with Microsoft.

    C# 3.6k 567

  6. inspector inspector Public

    Visual testing tool for MCP servers

    TypeScript 7.5k 976

Repositories

Showing 10 of 29 repositories
  • modelcontextprotocol Public

    Specification and documentation for the Model Context Protocol

    modelcontextprotocol/modelcontextprotocol’s past year of commit activity
    TypeScript 6,240 MIT 1,109 244 134 Updated Nov 14, 2025
  • inspector Public

    Visual testing tool for MCP servers

    modelcontextprotocol/inspector’s past year of commit activity
    TypeScript 7,514 MIT 976 91 (1 issue needs help) 32 Updated Nov 13, 2025
  • php-sdk Public

    The official PHP SDK for Model Context Protocol servers and clients. Maintained in collaboration with The PHP Foundation.

    modelcontextprotocol/php-sdk’s past year of commit activity
    PHP 1,180 MIT 85 18 6 Updated Nov 13, 2025
  • python-sdk Public

    The official Python SDK for Model Context Protocol servers and clients

    modelcontextprotocol/python-sdk’s past year of commit activity
    Python 20,048 MIT 2,755 268 (21 issues need help) 94 Updated Nov 13, 2025
  • typescript-sdk Public

    The official TypeScript SDK for Model Context Protocol servers and clients

    modelcontextprotocol/typescript-sdk’s past year of commit activity
    TypeScript 10,714 MIT 1,414 294 (13 issues need help) 95 Updated Nov 13, 2025
  • kotlin-sdk Public

    The official Kotlin SDK for Model Context Protocol servers and clients. Maintained in collaboration with JetBrains

    modelcontextprotocol/kotlin-sdk’s past year of commit activity
    Kotlin 1,136 MIT 177 61 (4 issues need help) 12 Updated Nov 13, 2025
  • conformance Public

    Conformance Tests for MCP

    modelcontextprotocol/conformance’s past year of commit activity
    TypeScript 16 MIT 2 0 1 Updated Nov 13, 2025
  • rust-sdk Public

    The official Rust SDK for the Model Context Protocol

    modelcontextprotocol/rust-sdk’s past year of commit activity
    Rust 2,564 MIT 400 82 8 Updated Nov 13, 2025
  • registry Public

    A community driven registry service for Model Context Protocol (MCP) servers.

    modelcontextprotocol/registry’s past year of commit activity
    Go 5,877 MIT 469 79 15 Updated Nov 13, 2025
  • access Public

    Infrastructure as Code for MCP access management

    modelcontextprotocol/access’s past year of commit activity
    TypeScript 14 7 0 0 Updated Nov 13, 2025