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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 6.9k 1.2k

  2. servers servers Public

    Model Context Protocol Servers

    TypeScript 75.9k 9.2k

  3. python-sdk python-sdk Public

    The official Python SDK for Model Context Protocol servers and clients

    Python 21k 3k

  4. typescript-sdk typescript-sdk Public

    The official TypeScript SDK for Model Context Protocol servers and clients

    TypeScript 11.3k 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 597

  6. inspector inspector Public

    Visual testing tool for MCP servers

    TypeScript 8.2k 1.1k

Repositories

Showing 10 of 32 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 1,211 MIT 185 69 (4 issues need help) 14 Updated Jan 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 3,587 MIT 328 54 (5 issues need help) 17 Updated Jan 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 11,268 MIT 1,554 182 (9 issues need help) 79 Updated Jan 10, 2026
  • ext-apps Public

    Official repo for SDK of upcoming Apps / UI extension

    modelcontextprotocol/ext-apps’s past year of commit activity
    TypeScript 347 MIT 58 31 26 Updated Jan 10, 2026
  • 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# 3,767 MIT 597 126 12 Updated Jan 10, 2026
  • registry Public

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

    modelcontextprotocol/registry’s past year of commit activity
    Go 6,236 MIT 555 92 16 Updated Jan 9, 2026
  • inspector Public

    Visual testing tool for MCP servers

    modelcontextprotocol/inspector’s past year of commit activity
    TypeScript 8,233 MIT 1,087 108 (1 issue needs help) 40 Updated Jan 10, 2026
  • rust-sdk Public

    The official Rust SDK for the Model Context Protocol

    modelcontextprotocol/rust-sdk’s past year of commit activity
    Rust 2,812 MIT 437 83 18 Updated Jan 9, 2026
  • ext-auth Public

    Extensions to authorization

    modelcontextprotocol/ext-auth’s past year of commit activity
    MDX 39 MIT 9 0 4 Updated Jan 9, 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 678 MIT 91 10 7 Updated Jan 9, 2026