What is the MCP-Go SDK?
It is a Go SDK for building Model Communication Protocol (MCP) tools and servers. It provides the interfaces and default implementations needed to create MCP‑compliant tools.
MCP-Go SDK
@dentaku7
基本情報
MCP-Go SDK について
MCP Server SDK in Go and some servers I'm using myself
MCP-Go SDK の設定
MCP-Go SDK のツール
ツール一覧はまだありません
この掲載には表示できるツール一覧がまだありません。サーバーにツールがないという意味ではありません。対応機能はプロジェクトのドキュメントをご確認ください。
ツールは README から自動的に抽出されます。メンテナーは ## Tools という見出しの下に記載することで、このタブに反映できます。
概要
What is MCP-Go SDK?
A Go SDK for building Model Communication Protocol (MCP) tools and servers. It provides the building blocks to implement MCP‑compliant tools that can be integrated with AI applications such as Cursor IDE. The SDK is designed for Go developers who want to create custom tools that communicate with AI clients using the MCP standard.
How to use MCP-Go SDK?
Create a Go module, implement the mcp.Tool interface (methods Name(), Description(), Schema(), Execute()), then instantiate a server with the default stdio transport, register the tool, and call Start(). A complete working example is provided in servers/example. To use the tool with Cursor IDE, create a .cursor/mcp.json file in your project root with the command and arguments.
Key features of MCP-Go SDK
- Implements the Model Communication Protocol (MCP) for Go
- Defines a clear
Toolinterface with required methods - Provides a flexible
Transportinterface with built‑in stdio support - Enforces a standard MCP response format (content + optional metadata)
- Includes an example server to get started quickly
Use cases of MCP-Go SDK
- Building custom MCP tools that can be called by AI applications like Cursor IDE
- Creating an echo tool that returns input messages with metadata
- Extending the SDK with custom transports beyond stdio
- Developing reusable MCP‑compliant services for integration with AI clients
よくある質問
What are the runtime requirements to use the SDK?
You need a Go development environment. The SDK itself is imported as a Go module; no external runtime dependencies beyond the Go standard library are mentioned.
How do I register a tool and start the server?
Create a new server with `server.NewServer(transport.NewStdioTransport())`, register your tool with `srv.RegisterTool(&MyTool{})`, then start it with `srv.Start()`. Your tool must implement the `mcp.Tool` interface.
How can I integrate my MCP tool with Cursor IDE?
Create a `.cursor/mcp.json` file in your project root with the command and optional arguments. See the Configuration section in the README for the exact JSON structure.
What transport options are available?
The SDK includes a `stdio` transport (`transport.NewStdioTransport()`). The `Transport` interface is extensible, allowing you to implement custom transports (e.g., WebSocket or HTTP) if needed.
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