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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 11.9k

  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 13.7k 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
  • servers Public

    Model Context Protocol Reference Servers

    modelcontextprotocol/servers's past year of commit activity
    TypeScript 91,897 11,931 9 3 Updated Nov 10, 2026
  • 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 1,666 200 43 (2 issues need help) 9 Updated Nov 10, 2026
  • modelcontextprotocol Public

    Specification and documentation for the Model Context Protocol

    modelcontextprotocol/modelcontextprotocol's past year of commit activity
    TypeScript 9,655 1,906 70 48 Updated Nov 10, 2026
  • registry Public

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

    modelcontextprotocol/registry's past year of commit activity
    Go 7,455 1,047 87 (1 issue needs help) 36 Updated Nov 10, 2026
  • access Public

    Infrastructure as Code for MCP access management

    modelcontextprotocol/access's past year of commit activity
    TypeScript 52 72 0 3 Updated Nov 9, 2026
  • core-primitives-wg Public

    Coordination and proposals for the MCP Core Primitives Working Group.

    modelcontextprotocol/core-primitives-wg's past year of commit activity
    0 Apache-2.0 0 0 3 Updated Nov 9, 2026
  • typescript-sdk Public

    The official TypeScript SDK for Model Context Protocol servers and clients

    modelcontextprotocol/typescript-sdk's past year of commit activity
    TypeScript 13,740 2,377 289 (7 issues need help) 372 Updated Nov 9, 2026
  • java-sdk Public

    The official Java SDK for Model Context Protocol servers and clients. Maintained in collaboration with Spring AI

    modelcontextprotocol/java-sdk's past year of commit activity
    Java 3,765 MIT 1,114 122 (2 issues need help) 162 Updated Nov 9, 2026
  • progressive-disclosure-wg Public

    About experimental exploration of organization for MCP primitives. Maintained by the Primitive Grouping Interest Group.

    modelcontextprotocol/progressive-disclosure-wg's past year of commit activity
    JavaScript 16 6 1 8 Updated Nov 9, 2026
  • ext-auth Public

    Extensions to authorization

    modelcontextprotocol/ext-auth's past year of commit activity
    MDX 174 MIT 55 12 15 Updated Nov 9, 2026