MCP Golang is an open-source Go framework for building Model Context Protocol (MCP) servers in just a few lines of code. Created by the team behind Metoro, it gives Go developers a clean, idiomatic way to expose tools, resources and prompts to MCP-compatible AI clients such as Claude and other LLM applications. The project is hosted on GitHub, where it has earned roughly 1,200 stars, and it remains actively maintained with recent updates in 2026.
The Model Context Protocol has become the standard way to connect language models to external data and actions, but writing a server from scratch means handling JSON-RPC plumbing, transport negotiation and schema definitions by hand. MCP Golang wraps all of that in a small Go library: you register typed handler functions, and the framework takes care of protocol details, argument binding and error handling. It supports the stdio and HTTP/SSE transports used by popular MCP hosts, so a server written with it can plug into desktop clients, IDEs and agent frameworks alike. Documentation lives at mcpgolang.com with quickstarts and API references.
MCP Golang is completely free and open source under the MIT license. There is no paid tier, hosted version or usage fee; you simply import the library into your Go module and build your server.
Go developers and platform teams who want to connect their internal systems, APIs and data sources to AI assistants through the Model Context Protocol without adopting a heavier framework or switching languages.