Skip to content
@modelcontextprotocol

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.

Pinned Loading

  1. modelcontextprotocol modelcontextprotocol Public

    Specification and documentation for the Model Context Protocol

    TypeScript 6k 1.1k

  2. servers servers Public

    Model Context Protocol Servers

    TypeScript 71.3k 8.5k

  3. python-sdk python-sdk Public

    The official Python SDK for Model Context Protocol servers and clients

    Python 19.6k 2.7k

  4. typescript-sdk typescript-sdk Public

    The official TypeScript SDK for Model Context Protocol servers and clients

    TypeScript 10.5k 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# 3.5k 547

  6. inspector inspector Public

    Visual testing tool for MCP servers

    TypeScript 7.2k 923

Repositories

Showing 10 of 27 repositories
  • ruby-sdk Public

    The official Ruby SDK for the Model Context Protocol. Maintained in collaboration with Shopify.

    modelcontextprotocol/ruby-sdk’s past year of commit activity
    Ruby 585 MIT 76 13 6 Updated Oct 26, 2025
  • registry Public

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

    modelcontextprotocol/registry’s past year of commit activity
    Go 5,742 MIT 444 66 19 Updated Oct 25, 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 10,459 MIT 1,372 294 (4 issues need help) 84 Updated Oct 25, 2025
  • access Public

    Infrastructure as Code for MCP access management

    modelcontextprotocol/access’s past year of commit activity
    TypeScript 13 4 0 0 Updated Oct 25, 2025
  • csharp-sdk Public

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

    modelcontextprotocol/csharp-sdk’s past year of commit activity
    C# 3,472 MIT 547 133 11 Updated Oct 25, 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 19,607 MIT 2,674 236 (2 issues need help) 65 Updated Oct 24, 2025
  • modelcontextprotocol Public

    Specification and documentation for the Model Context Protocol

    modelcontextprotocol/modelcontextprotocol’s past year of commit activity
    TypeScript 6,025 MIT 1,073 265 132 Updated Oct 24, 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 1,132 MIT 74 18 15 Updated Oct 24, 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 1,113 MIT 169 65 (4 issues need help) 13 Updated Oct 24, 2025
  • ext-auth Public

    Extensions to authorization

    modelcontextprotocol/ext-auth’s past year of commit activity
    MDX 14 MIT 2 0 0 Updated Oct 24, 2025