Workers MCP Demo

Workers MCP Demo

A demonstration project that uses Cloudflare Workers MCP to create custom AI tools that can be integrated with Claude, Cursor, and other AI assistants supporting the Model Context Protocol.

akazwz

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README

MCP Demo

这是一个使用 Cloudflare Workers MCP 创建自定义 AI 工具的简单演示项目,这些工具可以与 Claude、Cursor 和其他支持 MCP 的 AI 助手一起使用。

什么是 MCP?

MCP (Model Context Protocol) 是由 Anthropic 开源的一个标准,用于连接 AI 助手与数据源,包括内容仓库、业务工具和开发环境。它的目标是帮助前沿模型生成更好、更相关的回应。

本项目利用 Cloudflare Workers MCP 创建自定义工具,这些工具可以被 AI 助手访问和使用,从而扩展 AI 的能力。

特点

  • 在 Cloudflare Workers 上运行的自定义 AI 工具
  • 与 Claude、Cursor 和其他 MCP 客户端的无缝集成
  • 能够通过自己的无服务器函数扩展 AI 能力

前提条件

设置步骤

1. 克隆此仓库

git clone https://github.com/akazwz/workers-mcp-demo.git
cd workers-mcp-demo

2. 安装依赖

pnpm install

3. 配置你的 Cloudflare Worker

确保你已经通过 Wrangler 登录到 Cloudflare:

pnpx wrangler login

然后运行 MCP 设置命令:

npx workers-mcp setup

这将自动配置你的 Worker 以支持 MCP。

免费用户配置注意事项

如果你是 Cloudflare Workers 的免费用户(非付费用户),需要修改 wrangler.jsonc 文件,删除或注释掉以下配置:

"browser": {
  "binding": "BROWSER"
}

这是因为 Browser Rendering API 仅适用于付费用户。删除此配置后,screenshotURLextractImagesFromURL 功能将无法使用,但其他功能仍然可以正常工作。

4. 部署你的 Worker

pnpm run deploy

5. 配置你的 MCP 客户端

对于 Claude Desktop:

运行以下命令在 Claude 中安装你的 MCP 服务器:

pnpx workers-mcp install:claude

对于 Cursor:

在 Cursor 的 MCP 配置中添加以下内容:

{
  "type": "command",
  "command": "/path/to/workers-mcp run workers-mcp-demo https://your-worker-url.workers.dev /path/to/workers-mcp-demo"
}

使用方法

配置完成后,你可以直接从 AI 助手使用你的自定义 MCP 工具。例如,在 Claude Desktop 中,你可以使用如下命令:

@workers-mcp-demo getRandomNumber

可用工具

此演示包括以下工具:

  • getRandomNumber:生成一个随机数
  • generateImage:根据文本提示创建图像
  • screenshotURL:对指定 URL 进行截图(需要付费账户)
  • extractImagesFromURL:从网页中提取图像(需要付费账户)

自定义

要添加自己的工具,编辑 src/index.ts 文件并向 Worker 类添加新方法。更改后,使用以下命令重新部署你的 Worker:

pnpm run deploy

故障排除

  • 如果你的 AI 助手看不到你的工具,尝试重启助手。
  • 如果你更改了方法名称或参数,你需要重启 AI 助手才能使更改生效。
  • 检查 Cloudflare Workers 日志以查看部署中的任何错误。
  • 如果使用免费账户时出现 Error: Browser Rendering API is only available for Workers Paid plans 错误,请参考上面的免费用户配置注意事项。

许可证

本项目采用 MIT 许可证

致谢

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