Model Context Protocol

An open protocol that enables seamless integration between LLM applications and external data sources and tools.

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Model Context Protocol

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

📚 Read theDocumentation for guides and tutorials
🔍 Review theSpecification for protocol details
💻 Use our SDKs to start building:

Project Structure

specification - Protocol specification and documentation
typescript-sdk - TypeScript implementation
python-sdk - Python implementation
java-sdk - Java implementation
kotlin-sdk - Kotlin implementation
csharp-sdk - C# implementation
docs - User documentation and guides
create-kotlin-server - Kotlin sample server
servers - List of maintained servers

Contributing

We welcome contributions of all kinds! Whether you want to fix bugs, improve documentation, or propose new features, please see ourcontributing guide to get started.

Have questions? Join the discussion in ourcommunity forum.

About

The Model Context Protocol is an open source project run byAnthropic, PBC. and open to contributions from the entire community.

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modelcontextprotocolmodelcontextprotocolPublic
Specification and documentation for the Model Context Protocol
TypeScript 4.7k 763
serversserversPublic
Model Context Protocol Servers
TypeScript 60.3k 7k
python-sdkpython-sdkPublic
The official Python SDK for Model Context Protocol servers and clients
Python 16.4k 2.1k
typescript-sdktypescript-sdkPublic
The official TypeScript SDK for Model Context Protocol servers and clients
TypeScript 8.6k 1.1k
csharp-sdkcsharp-sdkPublic
The official C# SDK for Model Context Protocol servers and clients. Maintained in collaboration with Microsoft.
C# 2.8k 434
inspectorinspectorPublic
Visual testing tool for MCP servers
TypeScript 5.1k 641

Repositories

Showing 10 of 22 repositories

modelcontextprotocol Public
Specification and documentation for the Model Context Protocol
modelcontextprotocol/modelcontextprotocol’s past year of commit activity
TypeScript 4,690MIT 763 147 112 UpdatedJul 19, 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 2,096MIT 550 123 56 UpdatedJul 18, 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# 2,830MIT 434 67 6 UpdatedJul 18, 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 926MIT 128 42 (5 issues need help) 11 UpdatedJul 18, 2025
python-sdk Public
The official Python SDK for Model Context Protocol servers and clients
modelcontextprotocol/python-sdk’s past year of commit activity
Python 16,380MIT 2,098 348 (5 issues need help) 62 UpdatedJul 18, 2025
servers Public
Model Context Protocol Servers
modelcontextprotocol/servers’s past year of commit activity
TypeScript 60,341MIT 7,003 197 138 UpdatedJul 18, 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 8,634MIT 1,073 253 25 UpdatedJul 18, 2025
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 1,016MIT 76 27 (4 issues need help) 11 UpdatedJul 18, 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 324MIT 48 5 7 UpdatedJul 18, 2025
example-remote-server Public
A hosted version of the Everything server - for demonstration and testing purposes, hosted athttps://example-server.modelcontextprotocol.io/sse
modelcontextprotocol/example-remote-server’s past year of commit activity
TypeScript 10 0 1 UpdatedJul 17, 2025