McpServer MCP Server

What is McpServer?

McpServer is an MCP server implementation built on the mcp-go library. It currently provides weather query functionality using the QWeather API and includes enhancements for automatically populating field descriptions to improve AI interpretation of results.

How to use McpServer?

McpServer can be run in two transport modes: stdio (inter-process communication) or sse (HTTP streaming for remote access). To use it, you need to build the executable with go build -o ./bin/weather ./cmd/weather, then configure it in an MCP client with the appropriate command, arguments, and environment variables. For SSE mode, run go run ./cmd/weather/main.go --configDir=<path> -t=sse and provide the SSE URL in the client config.

Key features of McpServer

• Weather data queries powered by QWeather API
• Custom UnmarshalJSON methods that attach struct tag descriptions to response fields
• Supports both stdio and sse transport protocols
• Written in Go using the mcp-go library
• Configuration via YAML file and private key

Use cases of McpServer

• Integrate real-time weather information into AI agent conversations
• Allow remote AI clients to query weather data via SSE transport
• Use as a local MCP tool for weather-related prompts in development
• Extend with additional MCP tools by following the same pattern