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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
  • ext-auth Public

    Extensions to authorization

    modelcontextprotocol/ext-auth's past year of commit activity
    MDX 175 MIT 56 12 16 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 2 Updated Nov 10, 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 13,741 2,379 289 (7 issues need help) 371 Updated Nov 10, 2026
  • modelcontextprotocol Public

    Specification and documentation for the Model Context Protocol

    modelcontextprotocol/modelcontextprotocol's past year of commit activity
    TypeScript 9,657 1,906 70 52 Updated Nov 10, 2026
  • 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 1,487 264 112 (2 issues need help) 16 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 7,456 1,048 86 (1 issue needs help) 36 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 1,668 201 28 (2 issues need help) 6 Updated Nov 10, 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 3,766 MIT 1,114 122 (2 issues need help) 164 Updated Nov 10, 2026
  • go-sdk Public

    The official Go SDK for Model Context Protocol servers and clients. Maintained in collaboration with Google.

    modelcontextprotocol/go-sdk's past year of commit activity
    Go 5,330 614 39 (1 issue needs help) 37 Updated Nov 10, 2026
  • swift-sdk Public

    The official Swift SDK for Model Context Protocol servers and clients. Maintained in collaboration with Apple

    modelcontextprotocol/swift-sdk's past year of commit activity
    Swift 1,573 270 76 39 Updated Nov 10, 2026