web-reader

web-reader

A self-hosted MCP server that reads web pages and converts them to Markdown, with built-in web search and anti-crawl fallback using Playwright.

Category
Visit Server

README

MCP Web Server

一个自托管的 MCP (Model Context Protocol) 服务器,把网页内容读取并转换为 Markdown,供 Claude、Cursor 等 MCP 客户端使用。零第三方付费 API 依赖。

功能特点

  • 🔌 两个工具read_url(读网页)/ web_search(搜索)
  • 🔎 搜索web_search 搜索关键词返回 URL 列表 → 再用 read_url 读全文。全网搜后端 SearXNG(自托管)优先、Tavily 回退topic="academic" 走 DBLP + Semantic Scholar(免费,无需 key)
  • 🛤️ 专用通道:GitHub(raw README / Issue API)、arXiv(Atom API)、Stack Overflow(SE API)、Reddit(.json)、PDF 交接
  • 📄 统一提取:本地 fetch + Mozilla Readability + turndown,代码语言 / 表格 / 链接 / og: 元数据保真
  • 🌐 站点适配:掘金等按 host 优先选择器(知乎/微信实测被反爬,已移除)
  • 🧯 降级策略:本地解析 → 检测到访问限制(403 / 429 / Cloudflare 等)→ Playwright 浏览器渲染
  • 缓存:文件系统缓存,按 host 分级 TTL;失败 URL 短期负缓存;自动淘汰
  • 🔁 重试:5xx / 429 / 网络错误指数退避重试
  • 🛡️ SSRF 防护:拦截私有 IP / 云元数据端点 / 危险 host

部署

  1. 克隆并构建:
git clone https://github.com/PPParticle/web-server.git
cd web-server
npm install
npm run build
npx playwright install chromium   # 可选,用于 JS 渲染 / 反爬降级
  1. 接入 MCP 客户端:在所用 MCP 客户端配置中加入(Linux 下配置文件路径自行查阅客户端文档):
{
  "mcpServers": {
    "web-server": {
      "command": "node",
      "args": ["/absolute/path/to/web-server/dist/index.js"]
    }
  }
}
  1. 环境变量(可选):
变量 作用
GITHUB_TOKEN GitHub Personal Access Token。仅 issue 通道走 REST API(api.github.com),不设时限 60 次/小时、设置后 5000 次/小时;README 通道走 raw 不受影响。不设也能读公开仓库
SEARXNG_URL 自托管 SearXNG 实例地址(如 http://localhost:8080),需开启 JSON 输出。全网搜的首选后端
TAVILY_API_KEY Tavily API key(免费注册,1000 次/月)。全网搜的回退后端 —— SearXNG 失败时兜底。受限网络(无法访问 Google/Bing)也能搜,建议配上
WEB_SERVER_CACHE_DIR 覆盖缓存目录(默认 ~/.cache/mcp-web-server/

搜索后端(全网搜 web_search 默认 topic 所需)

  • SearXNG(首选,自托管、免费、无 key,但实例要能访问 Google/Bing):
    docker run -d --name searxng -p 8080:8080 searxng/searxng
    # 需在 settings.yml 的 search.formats 加 json;然后 export SEARXNG_URL=http://localhost:8080
    
  • Tavily(回退,受限网络也能搜):注册 tavily.com 拿 key → export TAVILY_API_KEY=tvly-...。建议配上,SearXNG 搜不到时兜底。

两个都配时:SearXNG 优先,失败自动回退 Tavily。只配其一则用那方;都不配则全网搜报错。topic="academic" 无需任何 key,直接走 DBLP + Semantic Scholar。

配套 Skill(可选,强烈推荐)

仓库自带一个 web-server skill(skills/web-server/SKILL.md),教会 agent 如何用好这两个工具 —— 尤其学术搜索的关键词 fan-out 策略:DBLP 按标题精确匹配,多词 query(如 kv offloading storage)单发会返回 0,必须拆子集 / 换同义词 / 搜系统名并行再合并,否则召回严重偏低。

安装到 Claude Code:

cp -r skills/web-server ~/.claude/skills/

其它 MCP 客户端(Cursor 等)按各自 skill 加载机制放置即可。不装也能用工具,只是 agent 不会自动遵循 fan-out 策略,学术搜索召回会偏低。

工具

read_url

读取单个 URL 并转为 Markdown。

参数 类型 默认 说明
url string (必填) http/https URL
engine enum auto auto=自动;local=强制本地解析;playwright=强制浏览器;jina=已移除(付费第三方,调用会返回明确错误)
no_cache bool false true 时跳过缓存、重新抓取
with_links bool false true 时在结果末尾附上正文链接清单,供 agent 决定是否进一步探索

web_search

搜索关键词,返回结果列表(标题 + URL + 摘要)。拿到 URL 后用 read_url 读全文。全网搜后端:SearXNG 优先、Tavily 回退;topic="academic" 走 DBLP + Semantic Scholar(免 key)。

参数 类型 默认 说明
query string (必填) 搜索关键词
topic enum general general=全网;academic=arxiv/dblp/semanticscholar/github;technical=stackoverflow/github/dev.to/MDN;community=reddit/HN
domains string[] (可选) 自定义域名覆盖(优先于 topic),如 ["juejin.cn"]
num number 10 返回结果数上限

典型流程:web_search("attention mechanism", topic="academic") → 从结果里挑 URL → read_url(url)。(学术搜记得按 Skill 里的 fan-out 策略发多个 query 变体。)

贡献

欢迎提交 Pull Request。

许可证

MIT License

Recommended Servers

playwright-mcp

playwright-mcp

A Model Context Protocol server that enables LLMs to interact with web pages through structured accessibility snapshots without requiring vision models or screenshots.

Official
Featured
TypeScript
Magic Component Platform (MCP)

Magic Component Platform (MCP)

An AI-powered tool that generates modern UI components from natural language descriptions, integrating with popular IDEs to streamline UI development workflow.

Official
Featured
Local
TypeScript
Audiense Insights MCP Server

Audiense Insights MCP Server

Enables interaction with Audiense Insights accounts via the Model Context Protocol, facilitating the extraction and analysis of marketing insights and audience data including demographics, behavior, and influencer engagement.

Official
Featured
Local
TypeScript
VeyraX MCP

VeyraX MCP

Single MCP tool to connect all your favorite tools: Gmail, Calendar and 40 more.

Official
Featured
Local
graphlit-mcp-server

graphlit-mcp-server

The Model Context Protocol (MCP) Server enables integration between MCP clients and the Graphlit service. Ingest anything from Slack to Gmail to podcast feeds, in addition to web crawling, into a Graphlit project - and then retrieve relevant contents from the MCP client.

Official
Featured
TypeScript
Kagi MCP Server

Kagi MCP Server

An MCP server that integrates Kagi search capabilities with Claude AI, enabling Claude to perform real-time web searches when answering questions that require up-to-date information.

Official
Featured
Python
E2B

E2B

Using MCP to run code via e2b.

Official
Featured
Neon Database

Neon Database

MCP server for interacting with Neon Management API and databases

Official
Featured
Exa Search

Exa Search

A Model Context Protocol (MCP) server lets AI assistants like Claude use the Exa AI Search API for web searches. This setup allows AI models to get real-time web information in a safe and controlled way.

Official
Featured
Qdrant Server

Qdrant Server

This repository is an example of how to create a MCP server for Qdrant, a vector search engine.

Official
Featured