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@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 hosted by The Linux Foundation 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 9.7k 1.9k

  2. servers servers Public

    Model Context Protocol Reference Servers

    TypeScript 91.9k 12k

  3. python-sdk python-sdk Public

    The official Python SDK for Model Context Protocol servers and clients

    Python 24.8k 4.1k

  4. typescript-sdk typescript-sdk Public

    The official TypeScript SDK for Model Context Protocol servers and clients

    TypeScript 13.8k 2.4k

  5. csharp-sdk csharp-sdk Public

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

    C# 4.6k 847

  6. inspector inspector Public

    Deterministic testing tools for MCP servers

    TypeScript 11.3k 1.6k

Repositories

Showing 10 of 49 repositories
  • inspector Public

    Deterministic testing tools for MCP servers

    modelcontextprotocol/inspector's past year of commit activity
    TypeScript 11,283 1,567 13 1 Updated Nov 12, 2026
  • servers Public

    Model Context Protocol Reference Servers

    modelcontextprotocol/servers's past year of commit activity
    TypeScript 91,942 11,954 8 2 Updated Nov 12, 2026
  • modelcontextprotocol Public

    Specification and documentation for the Model Context Protocol

    modelcontextprotocol/modelcontextprotocol's past year of commit activity
    TypeScript 9,675 1,911 72 54 Updated Nov 12, 2026
  • transports-wg Public

    Transports Working Group

    modelcontextprotocol/transports-wg's past year of commit activity
    TypeScript 25 13 3 19 Updated Nov 12, 2026
  • quickstart-resources Public

    A repository of servers and clients from the Model Context Protocol tutorials

    modelcontextprotocol/quickstart-resources's past year of commit activity
    TypeScript 1,238 702 12 5 Updated Nov 11, 2026
  • registry Public

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

    modelcontextprotocol/registry's past year of commit activity
    Go 7,465 1,051 86 (1 issue needs help) 40 Updated Nov 11, 2026
  • experimental-ext-filesystems Public

    Experimental MCP extension for filesystem operations on Resources. Maintained by the Filesystems Working Group.

    modelcontextprotocol/experimental-ext-filesystems's past year of commit activity
    Python 4 Apache-2.0 4 0 0 Updated Nov 11, 2026
  • rust-sdk Public

    The official Rust SDK for the Model Context Protocol

    modelcontextprotocol/rust-sdk's past year of commit activity
    Rust 4,109 706 32 (1 issue needs help) 39 Updated Nov 11, 2026
  • 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# 4,628 848 151 (13 issues need help) 74 Updated Nov 11, 2026
  • ruby-sdk Public

    The official Ruby SDK for the Model Context Protocol servers and clients.

    modelcontextprotocol/ruby-sdk's past year of commit activity
    Ruby 950 143 3 2 Updated Nov 11, 2026