About
Deno Webfetch — Model Context Protocol server
README
一个可部署到 Deno Deploy 的 MCP Server,提供 fetch_url 工具:传入 URL,抓取页面文本并返回。
本地运行
deno task dev
启动后:
- MCP endpoint:
http://127.0.0.1:8000/mcp - 健康检查:
http://127.0.0.1:8000/
工具说明
工具名:fetch_url
参数:
url(string, 必填): 目标 HTTP/HTTPS URLmax_chars(number, 可选): 最多返回字符数,默认20000timeout_ms(number, 可选): 请求超时毫秒数,默认15000
返回内容包括:
- 请求 URL 与最终 URL(跟随重定向后)
- HTTP 状态码与
Content-Type - 抓取时间、下载字节数
- 页面文本(必要时会截断)
部署到 Deno Deploy
把 main.ts 作为入口部署即可,目前最新的deno deploy注册后,直接把main.ts拷贝到playgroud中,点击deplop即可。

部署完成后会得到一个域名,直接拿来就可以使用了,例如:https://webfetch.xiaogenban.deno.net/mcp这个是我部署的域名,可以直接使用。
配置到 Claude Code
Claude Code 命令添加:
# 这里地址可以替换为你自己部署的,也可以直接用我的
claude mcp add --transport http webfetch https://webfetch.xiaogenban.deno.net/mcp
或者自行修改~/.claude.json
{
"mcpServers": {
"webfetch": {
"type": "url",
"url": "https://webfetch.xiaogenban.deno.net/mcp"
}
}
}
验证:
claude mcp list
或在 Claude Code 会话中输入 /mcp,看到 webfetch 处于可用状态即可。
Installing Deno Webfetch
This server has no published package — it is built from source. Open the repository and follow its README.
▸ github.com/sunwu51/deno-webfetch-mcpFAQ
Is Deno Webfetch MCP free?
Yes, Deno Webfetch MCP is free — one-click install via Unyly at no cost.
Does Deno Webfetch need an API key?
No, Deno Webfetch runs without API keys or environment variables.
Is Deno Webfetch hosted or self-hosted?
Self-hosted: the server runs locally on your machine via the install command above.
How do I install Deno Webfetch in Claude Desktop, Claude Code or Cursor?
Open Deno Webfetch on unyly.org, pick your client tab (Claude Desktop, Claude Code, Cursor) and press Install — the config is generated automatically, no JSON editing.
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