MCP Server Go

What is MCP Server Go?

MCP Server Go is a Go implementation of the Model Context Protocol (MCP), enabling seamless integration between LLM applications and external data sources and tools. It handles complex protocol details and server management, allowing developers to focus on building tools.

How to use MCP Server Go?

Install via go get github.com/shaneholloman/mcp-server-go. Create a server with server.NewMCPServer, add tools, resources, or prompts, then start with server.ServeStdio. See the Quickstart section for a complete example.

Key features of MCP Server Go

• Fast: High-level interface reduces code and accelerates development.
• Simple: Build MCP servers with minimal boilerplate.
• Complete*: Aims to provide full core MCP specification implementation (active development).
• Supports Resources (static and dynamic), Tools, and Prompts.
• Built-in server management and protocol compliance.
• Uses stdio transport for communication.

Use cases of MCP Server Go

• Expose data (via Resources) to LLM applications in a standardized way.
• Provide executable functionality (via Tools) such as calculations, HTTP requests, database queries.
• Define reusable interaction patterns (via Prompts) for consistent LLM behavior.
• Build custom MCP servers that integrate with internal APIs or external services.

FAQ from MCP Server Go

What is the Model Context Protocol (MCP)?

MCP lets you build servers that expose data and functionality to LLM applications in a secure, standardized way. It’s like a web API designed for LLM interactions, supporting Resources, Tools, and Prompts.

What are the runtime requirements for MCP Server Go?

MCP Server Go is written in Go and requires a Go environment to compile and run. The README shows usage with Go modules via go get.

How does MCP Server Go compare to other MCP libraries?

The README emphasizes a high-level, simple interface with minimal boilerplate. It is under active development, with core features working but some advanced capabilities still in progress.

Where does data live when using MCP Server Go?

Data is handled by the server’s resource/tool handlers. The library itself does not store data; it forwards requests and responses according to protocol. Static resources can load data from files; dynamic resources can query databases or APIs.

What transport protocols are supported?

The README demonstrates only stdio transport via server.ServeStdio. No other transports (e.g., HTTP/WebSocket) are mentioned or implied.