Official Implementations

modelcontextprotocol/typescript-sdk

13.6k TypeScript #Official#TypeScript#SDK

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The official MCP TypeScript SDK: the best way to build MCP servers and clients in the JS/TS ecosystem, seamless with the Node stack.

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modelcontextprotocol/python-sdk Details →

Python

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The official MCP Python SDK: quickly build MCP servers and clients in Python. Officially maintained with thorough docs — the standard starting point for developers.

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modelcontextprotocol/go-sdk Details →

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The official MCP Go SDK: write high-performance MCP servers and clients in Go. Great for building production-grade, high-concurrency MCP tools.

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modelcontextprotocol/csharp-sdk Details →

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The official MCP C# SDK: the standard way for .NET developers to integrate MCP, covering both servers and clients. Suited to enterprise projects.

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Java

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The official MCP Java SDK: build MCP servers and clients in the Java ecosystem, friendly to Spring and other frameworks. A top pick for back-end teams.

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