Qilin MCP Framework

What is Qilin MCP Framework?

Qilin MCP Framework is a Go library for building servers that implement the Model Context Protocol (MCP). It helps developers define tools and resources that large language models can discover and invoke. The framework is currently a work in progress.

How to use Qilin MCP Framework?

Install with go get github.com/miyamo2/qilin (requires Go 1.24+). In your code, create a new qilin instance, define tools using q.Tool() and resources using q.Resource(), then call q.Start() to listen and serve on stdio. The README provides a complete example of a calculator tool server.

Key features of Qilin MCP Framework

• Written in Go (requires Go 1.24+)
• Stdio transport (SSE transport planned but not yet supported)
• Tool listing and calling with middleware support
• Resource listing and reading with middleware support
• Resource templates and list‑changed notifications
• Resource subscriptions are not yet implemented

Use cases of Qilin MCP Framework

• Build a custom calculator server for an MCP‑aware AI assistant
• Expose existing Go functions as callable tools via MCP
• Serve dynamic resource templates (e.g., user‑specific data) to language models
• Create a middleware layer for logging, validation, or error handling on tool/resource calls