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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 6.4k 1.1k

  2. servers servers Public

    Model Context Protocol Servers

    TypeScript 73.6k 8.9k

  3. python-sdk python-sdk Public

    The official Python SDK for Model Context Protocol servers and clients

    Python 20.4k 2.8k

  4. typescript-sdk typescript-sdk Public

    The official TypeScript SDK for Model Context Protocol servers and clients

    TypeScript 10.9k 1.5k

  5. csharp-sdk csharp-sdk Public

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

    C# 3.6k 579

  6. inspector inspector Public

    Visual testing tool for MCP servers

    TypeScript 7.8k 1k

Repositories

Showing 10 of 30 repositories
  • python-sdk Public

    The official Python SDK for Model Context Protocol servers and clients

    modelcontextprotocol/python-sdk’s past year of commit activity
    Python 20,351 MIT 2,813 293 (21 issues need help) 99 Updated Dec 1, 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 10,890 MIT 1,458 283 (12 issues need help) 85 Updated Dec 1, 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# 3,636 MIT 579 146 23 Updated Dec 1, 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 1,158 MIT 181 71 (4 issues need help) 15 Updated Dec 1, 2025
  • modelcontextprotocol Public

    Specification and documentation for the Model Context Protocol

    modelcontextprotocol/modelcontextprotocol’s past year of commit activity
    TypeScript 6,436 MIT 1,142 245 80 Updated Dec 1, 2025
  • ext-apps Public

    Official repo for SDK of upcoming Apps / UI extension

    modelcontextprotocol/ext-apps’s past year of commit activity
    TypeScript 196 27 12 8 Updated Dec 1, 2025
  • registry Public

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

    modelcontextprotocol/registry’s past year of commit activity
    Go 5,962 MIT 502 80 25 Updated Nov 30, 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 1,227 MIT 95 26 6 Updated Nov 30, 2025
  • .github Public

    Discussions and README for Model Context Protocol

    modelcontextprotocol/.github’s past year of commit activity
    57 51 1 7 Updated Nov 29, 2025
  • inspector Public

    Visual testing tool for MCP servers

    modelcontextprotocol/inspector’s past year of commit activity
    TypeScript 7,759 MIT 1,018 106 (1 issue needs help) 34 Updated Nov 29, 2025