Model Context Protocol Implementation in Go

There has been a lot of activity in the LLM space around Model Context Protocol (MCP). The key use case of MCP is to allow LLMs to communicate with real world application through a standardized protocol.

For work, I have been using Golang quite a bit. It has all the qualities of C (which I really like) with modern conveniences like garbage collection, and great concurrency primitives.

The protocol specification is provided by Anthropic. There are some basic servers that are provided. But the only client that implements the MCP protocol is Claude Desktop app itself.

The steps within the protocol are illustrated in the diagram below.

As a fun side project, I thought it would be interesting to implement a basic MCP server in Go.

Here is the repo: go-mcp