
MCP Reference Servers
Reference MCP server implementations for learning, not production use
The modelcontextprotocol/servers repository holds reference implementations of MCP servers, such as filesystem, Git, fetch, and memory, maintained by the MCP project to demonstrate protocol features. They are examples and starting points rather than production-ready integrations.
Key features
- Filesystem, Git, and fetch servers
- Memory and sequential-thinking servers
- TypeScript and Python examples
- Points to the MCP Registry for production servers
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FastMCP
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MCP Inspector
Official visual testing tool for Model Context Protocol servers

MCP Python SDK
Official Python SDK for Model Context Protocol servers and clients

MCP Registry
Official metadata registry for publicly available MCP servers (preview)

MCP TypeScript SDK
Official TypeScript SDK for building MCP servers and clients
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