MCP-webfetch
Click on "Install Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type
@followed by the MCP server name and your instructions, e.g., "@MCP-webfetchFetch https://example.com in markdown format"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
MCP-webfetch
通过 SOCKS5 代理抓取网页内容的 MCP 服务器。基于 opencode 官方 webfetch 实现,添加了代理支持。
功能
通过
127.0.0.1:10808SOCKS5 代理获取网页支持格式:markdown(默认)、text、html
HTML→Markdown 转换(TurndownService)
HTML→Text 提取(htmlparser2)
自动跟进重定向(防循环检测)
Cloudflare 反爬检测 + 自动重试
MIME 类型校验(图片/二进制自动拒绝)
Body 大小限制(5MB)
Related MCP server: superFetch MCP Server
安装
# 1. 克隆或复制本目录
cd D:\workplace\MCP-webfetch
# 2. 安装依赖(htmlparser2 + turndown)
npm install配置 opencode
在 opencode.json 中添加:
{
"mcp": {
"webfetch-proxy": {
"type": "local",
"command": ["node", "D:\\workplace\\MCP-webfetch\\webfetch-proxy.js"],
"enabled": true
}
},
"permission": {
"webfetch": "deny"
}
}项目级: 当前目录下的
opencode.json全局级:
~/.config/opencode/opencode.json
禁止内置 webfetch(可选)
在 permission 中设置 webfetch: "deny",让 AI 只能使用本 MCP 工具。
{
"permission": {
"webfetch": "deny"
}
}配置代理地址
编辑 webfetch-proxy.js 顶部:
const PROXY_HOST = "127.0.0.1";
const PROXY_PORT = 10808;重启 opencode
每次修改配置后需要重启 opencode 生效。
测试
node -e "
const { spawn } = require('child_process');
const proc = spawn('node', ['D:\\\\workplace\\\\MCP-webfetch\\\\webfetch-proxy.js']);
proc.stdin.write(JSON.stringify({jsonrpc:'2.0',id:1,method:'initialize',params:{protocolVersion:'2024-11-05',capabilities:{},clientInfo:{name:'t',version:'1'}}})+'\n');
setTimeout(() => {
proc.stdin.write(JSON.stringify({jsonrpc:'2.0',id:2,method:'tools/call',params:{name:'webfetch',arguments:{url:'https://httpbin.org/get',format:'text',timeout:5}}})+'\n');
}, 500);
setTimeout(() => { proc.kill(); process.exit(); }, 5000);
proc.stdout.on('data', (d) => { console.log(d.toString()); });
"依赖
effect— 函数式运行时(HttpClient、Stream、Effect)htmlparser2— HTML 解析(文本提取)socks-proxy-agent— SOCKS5 代理客户端turndown— HTML→Markdown 转换
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