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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 7.1k 1.3k

  2. servers servers Public

    Model Context Protocol Servers

    TypeScript 77.6k 9.4k

  3. python-sdk python-sdk Public

    The official Python SDK for Model Context Protocol servers and clients

    Python 21.4k 3k

  4. typescript-sdk typescript-sdk Public

    The official TypeScript SDK for Model Context Protocol servers and clients

    TypeScript 11.5k 1.6k

  5. csharp-sdk csharp-sdk Public

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

    C# 3.8k 614

  6. inspector inspector Public

    Visual testing tool for MCP servers

    TypeScript 8.5k 1.1k

Repositories

Showing 10 of 34 repositories
  • 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# 3,836 614 131 14 Updated Jan 30, 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 3,734 340 54 (6 issues need help) 20 Updated Jan 30, 2026
  • ext-apps Public

    Official repo for spec & SDK of MCP Apps protocol - standard for UIs embedded AI chatbots, served by MCP servers

    modelcontextprotocol/ext-apps’s past year of commit activity
    TypeScript 950 116 41 44 Updated Jan 30, 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 3,116 MIT 791 216 95 Updated Jan 30, 2026
  • python-sdk Public

    The official Python SDK for Model Context Protocol servers and clients

    modelcontextprotocol/python-sdk’s past year of commit activity
    Python 21,436 MIT 3,037 244 (1 issue needs help) 98 Updated Jan 30, 2026
  • modelcontextprotocol Public

    Specification and documentation for the Model Context Protocol

    modelcontextprotocol/modelcontextprotocol’s past year of commit activity
    TypeScript 7,053 1,267 201 85 Updated Jan 30, 2026
  • conformance Public

    Conformance Tests for MCP

    modelcontextprotocol/conformance’s past year of commit activity
    TypeScript 33 17 8 6 Updated Jan 30, 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 11,450 1,584 181 (9 issues need help) 84 Updated Jan 30, 2026
  • 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 699 93 10 9 Updated Jan 30, 2026
  • rust-sdk Public

    The official Rust SDK for the Model Context Protocol

    modelcontextprotocol/rust-sdk’s past year of commit activity
    Rust 2,910 444 86 9 Updated Jan 30, 2026