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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 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 9.3k 1.8k

  2. servers servers Public

    Model Context Protocol Servers

    TypeScript 90.7k 11.7k

  3. python-sdk python-sdk Public

    The official Python SDK for Model Context Protocol servers and clients

    Python 24.4k 4k

  4. typescript-sdk typescript-sdk Public

    The official TypeScript SDK for Model Context Protocol servers and clients

    TypeScript 13.5k 2.2k

  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 817

  6. inspector inspector Public

    Visual testing tool for MCP servers

    TypeScript 11k 1.5k

Repositories

Showing 10 of 42 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 1,464 249 86 (2 issues need help) 15 Updated Sep 29, 2026
  • inspector Public

    Visual testing tool for MCP servers

    modelcontextprotocol/inspector's past year of commit activity
    TypeScript 10,981 1,530 45 2 Updated Sep 29, 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 3,715 MIT 1,147 116 (2 issues need help) 163 Updated Sep 29, 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 13,488 2,233 300 (7 issues need help) 320 Updated Sep 29, 2026
  • access Public

    Infrastructure as Code for MCP access management

    modelcontextprotocol/access's past year of commit activity
    TypeScript 48 66 0 1 Updated Sep 29, 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 24,437 MIT 3,990 266 (1 issue needs help) 191 Updated Sep 29, 2026
  • experimental-ext-interceptors Public

    Status: Experimental. This repository provides a multi-language reference implementation of the proposed interceptor extension for the Model Context Protocol (MCP), as described in SEP-2624.

    modelcontextprotocol/experimental-ext-interceptors's past year of commit activity
    C# 23 Apache-2.0 13 5 9 Updated Sep 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 5,169 558 61 (1 issue needs help) 55 Updated Sep 29, 2026
  • quickstart-resources Public

    A repository of servers and clients from the Model Context Protocol tutorials

    modelcontextprotocol/quickstart-resources's past year of commit activity
    TypeScript 1,209 685 5 0 Updated Sep 29, 2026
  • servers Public

    Model Context Protocol Servers

    modelcontextprotocol/servers's past year of commit activity
    TypeScript 90,683 11,709 236 322 Updated Sep 29, 2026