Official Reference MCP servers
14 servers, ranked by GitHub stars.
Time (official) by modelcontextprotocol · Official
Time and timezone conversion capabilities.
Official Reference
Time and timezone conversion capabilities.
Official Reference
Sequential Thinking (official) by modelcontextprotocol · Official
Dynamic and reflective problem-solving through thought sequences.
Official Reference
Dynamic and reflective problem-solving through thought sequences.
Official Reference
Memory (official) by modelcontextprotocol · Official
Knowledge graph-based persistent memory system.
Official Reference
Knowledge graph-based persistent memory system.
Official Reference
Git (official) by modelcontextprotocol · Official
Tools to read, search, and manipulate Git repositories.
Official Reference
Tools to read, search, and manipulate Git repositories.
Official Reference
Filesystem (official) by modelcontextprotocol · Official
Secure file operations with configurable access controls.
Official Reference
Secure file operations with configurable access controls.
Official Reference
Fetch (official) by modelcontextprotocol · Official
Web content fetching and conversion for efficient LLM usage.
Official Reference
Web content fetching and conversion for efficient LLM usage.
Official Reference
Everything (official) by modelcontextprotocol · Official
Reference / test server with prompts, resources, and tools.
Official Reference
Reference / test server with prompts, resources, and tools.
Official Reference
python-sdk by modelcontextprotocol · ★24576
The official Python SDK for Model Context Protocol servers and clients
Official Reference
The official Python SDK for Model Context Protocol servers and clients
Official Reference
typescript-sdk by modelcontextprotocol · ★13584
The official TypeScript SDK for Model Context Protocol servers and clients
Official Reference
The official TypeScript SDK for Model Context Protocol servers and clients
Official Reference
csharp-sdk by modelcontextprotocol · ★4585
The official C# SDK for Model Context Protocol servers and clients. Maintained in collaboration with Microsoft.
Official Reference
The official C# SDK for Model Context Protocol servers and clients. Maintained in collaboration with Microsoft.
Official Reference
rust-sdk by modelcontextprotocol · ★4018
The official Rust SDK for the Model Context Protocol
Official Reference
The official Rust SDK for the Model Context Protocol
Official Reference
java-sdk by modelcontextprotocol · ★3736
The official Java SDK for Model Context Protocol servers and clients. Maintained in collaboration with Spring AI
Official Reference
The official Java SDK for Model Context Protocol servers and clients. Maintained in collaboration with Spring AI
Official Reference
php-sdk by modelcontextprotocol · ★1629
The official PHP SDK for Model Context Protocol servers and clients. Maintained in collaboration with The PHP Foundation.
Official Reference
The official PHP SDK for Model Context Protocol servers and clients. Maintained in collaboration with The PHP Foundation.
Official Reference
ruby-sdk by modelcontextprotocol · ★928
The official Ruby SDK for the Model Context Protocol servers and clients.
Official Reference
The official Ruby SDK for the Model Context Protocol servers and clients.
Official Reference
Frequently asked questions
What is a Official Reference MCP server?
A Official Reference MCP server lets AI assistants such as Claude, Cursor or GitHub Copilot use official reference tools through the Model Context Protocol. 14 open-source options are listed here.
How is this list ranked?
By GitHub stars and recent activity, using public repository data refreshed on October 15, 2026.
How do I install one?
Most servers are added to your client’s MCP config file as an npx, uvx or Docker command. Our install guides for Claude Desktop, Cursor and VS Code walk through it step by step.
How to install MCP servers in Claude Desktop (step by step)
How to install MCP servers in Cursor (mcp.json guide)