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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 5.6k 959

  2. servers servers Public

    Model Context Protocol Servers

    TypeScript 67.8k 8k

  3. python-sdk python-sdk Public

    The official Python SDK for Model Context Protocol servers and clients

    Python 18.5k 2.5k

  4. typescript-sdk typescript-sdk Public

    The official TypeScript SDK for Model Context Protocol servers and clients

    TypeScript 9.7k 1.3k

  5. csharp-sdk csharp-sdk Public

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

    C# 3.2k 504

  6. inspector inspector Public

    Visual testing tool for MCP servers

    TypeScript 6.4k 802

Repositories

Showing 10 of 24 repositories
  • 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 1,042 MIT 155 55 (4 issues need help) 13 Updated Sep 15, 2025
  • example-remote-server Public

    A hosted version of the Everything server - for demonstration and testing purposes, hosted at https://example-server.modelcontextprotocol.io/sse

    modelcontextprotocol/example-remote-server’s past year of commit activity
    TypeScript 30 7 0 3 Updated Sep 15, 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 927 MIT 50 22 5 Updated Sep 15, 2025
  • modelcontextprotocol Public

    Specification and documentation for the Model Context Protocol

    modelcontextprotocol/modelcontextprotocol’s past year of commit activity
    TypeScript 5,616 MIT 959 223 138 Updated Sep 15, 2025
  • registry Public

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

    modelcontextprotocol/registry’s past year of commit activity
    Go 4,161 MIT 314 42 (1 issue needs help) 8 Updated Sep 15, 2025
  • servers Public

    Model Context Protocol Servers

    modelcontextprotocol/servers’s past year of commit activity
    TypeScript 67,791 MIT 7,960 180 53 Updated Sep 14, 2025
  • 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 464 MIT 65 11 10 Updated Sep 14, 2025
  • 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 2,432 MIT 647 153 63 Updated Sep 14, 2025
  • inspector Public

    Visual testing tool for MCP servers

    modelcontextprotocol/inspector’s past year of commit activity
    TypeScript 6,361 MIT 802 120 49 Updated Sep 13, 2025
  • rust-sdk Public

    The official Rust SDK for the Model Context Protocol

    modelcontextprotocol/rust-sdk’s past year of commit activity
    Rust 2,236 MIT 340 46 7 Updated Sep 13, 2025