MCP Server Boilerplate

@lucianoayres

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基本情報

カテゴリ

開発者ツール

トランスポート

stdio

作者

lucianoayres

MCP Server Boilerplate について

MCP Server Boilerplate is a Node.js example that demonstrates how to build an MCP server with a custom tool, including one that loads an environment variable from a configuration file, to integrate seamlessly with AI-assisted environments like Cursor AI.

#ai #cursor #mcp-server

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このサーバーの README には解析可能な MCP 設定ブロックが含まれていません。インストール手順はリポジトリをご確認ください。

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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 Server Boilerplate?

MCP Server Boilerplate is a reference implementation of an MCP server that provides two basic tools: an addition tool (add) and an environment variable retrieval tool (getApiKey). It is designed for developers integrating custom tools into AI-assisted development environments like Cursor AI.

How to use MCP Server Boilerplate?

Clone the repository and run npm install to install dependencies. Configure the ./cursor/mcp.json file with absolute paths to your Node.js executable and the server script, then optionally move it to ~/.cursor for global recognition. Invoke tools in Cursor Composer's Agent mode using natural language prompts such as “add 3 and 5” or “what is my API key?”.

Key features of MCP Server Boilerplate?

MCP integration for LLM-based IDEs
Addition tool accepting two numeric parameters
Environment variable retrieval via API_KEY
Input validation using Zod schemas
Standard I/O transport (StdioServerTransport)

Use cases of MCP Server Boilerplate?

Learning how to set up an MCP server from scratch
Prototyping custom tools for Cursor AI or similar IDEs
Demonstrating environment variable access within an MCP tool

よくある質問

What is MCP?

Model Context Protocol (MCP) is a framework that allows you to integrate custom tools into AI-assisted development environments. MCP servers expose functionality so that LLM-based IDEs can call these tools on demand.

What are the runtime requirements?

Node.js version 20 or higher is required.

How do I configure the server for Cursor AI?

Edit `./cursor/mcp.json` to include the absolute paths to Node.js and your MCP server file, and optionally set environment variables like `API_KEY`. This file can also be placed in `~/.cursor` for global use.

Where does the API key come from?

The `getApiKey` tool reads the value of the `API_KEY` environment variable, which you must set in the `env` field of the MCP configuration.

What transport does the server use?

It connects via `StdioServerTransport` (standard I/O) for integration with development environments.

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