mcp-scan-qr

mcp-scan-qr

An MCP server that provides tools for scanning and extracting data from QR codes using single or multiple image URLs. It supports both individual and batch processing to retrieve encoded information from images hosted online.

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README

mcp-scan-qr

这是一个基于 FastMCP 框架构建的 MCP (Model Context Protocol) 工具包,用于从图像中扫描二维码。

功能

当前实现了以下二维码扫描工具:

  • scanQRCode: 从单个图片URL扫描二维码
  • scanQRCodeBatch: 从多个图片URL批量扫描二维码

安装依赖

bun install

运行项目

bun run dev

调试项目

bun run inspect

构建项目

bun run build

部署 MCP

{
  "mcpServers": {
    "mcp-scan-qr": {
      "args": ["-y","@pidanmoe/mcp-scan-qr"],
      "command": "npx",
      "env": {
        // 环境变量
      }
    }
  }
}

项目结构

  • [src/index.ts](file:///Volumes/SSD/_work/mcp-template/mcp-scan-qr/src/index.ts): 主入口文件,初始化并启动 FastMCP 服务器
  • [src/tools/scanQRCode.ts](file:///Volumes/SSD/_work/mcp-template/mcp-scan-qr/src/tools/scanQRCode.ts): 实现了 scanQRCode 工具,支持从单个图片URL扫描二维码
  • [src/tools/scanQRCodeBatch.ts](file:///Volumes/SSD/_work/mcp-template/mcp-scan-qr/src/tools/scanQRCodeBatch.ts): 实现了 scanQRCodeBatch 工具,支持从多个图片URL批量扫描二维码
  • [src/utils/logger.ts](file:///Volumes/SSD/_work/mcp-template/mcp-scan-qr/src/utils/logger.ts): 日志工具模块

使用说明

该工具包提供了两个MCP工具:

scanQRCode

从单个HTTPS图片URL扫描二维码:

{
  "name": "scanQRCode",
  "arguments": {
    "imageUrl": "https://example.com/qrcode.png"
  }
}

scanQRCodeBatch

从多个HTTPS图片URL批量扫描二维码(最多10个):

{
  "name": "scanQRCodeBatch",
  "arguments": {
    "imageUrls": [
      "https://example.com/qrcode1.png",
      "https://example.com/qrcode2.png"
    ]
  }
}

两个工具都会返回包含扫描结果的JSON字符串。成功时返回二维码内容,失败时返回错误信息。

技术栈

  • Bun - JavaScript/TypeScript 运行时
  • FastMCP - MCP 框架
  • Zod - TypeScript-first schema declaration and validation library
  • jsQR - JavaScript QR code reader
  • Sharp - High performance Node.js image processing
  • Axios - Promise based HTTP client

此项目使用 bun v1.2.19 创建。Bun 是一个快速的一体化 JavaScript 运行时。

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