Webcheck MCP Server

一个 MCP (Model Context Protocol) 服务器，让 AI 助手能够自动分析任意网站的 SEO、无障碍性、安全性和性能问题。. Its 5 documented tools cluster into check, read & search, compare. It runs locally over stdio via the published package.

People connecting security tools to Claude, Cursor, VS Code, or another MCP client. The project is written in TypeScript.

VERIFIED ACTIVE

LAST COMMIT 2026-04-13 · ★ 3 · #118 OF 182 MAINTAINED SECURITY · VERIFIED 2026-08-25

MIT · TypeScript servers · how we verify → /methodology

01 · Install Webcheck

before you install - you'll need

The README does not document required environment variables for a basic install.

Claude Code

claude mcp add yifanyifan897645-webcheck-mcp -- npx -y webcheck-mcp

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "yifanyifan897645-webcheck-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "webcheck-mcp"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license MIT - declared in the repository

npm package webcheck-mcp - unscoped; check the name against the project README before installing

registry namespace io.github.yifanyifan897645 is GitHub-verified and matches the repo owner

03 · What Webcheck can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

What you can build

An agent gets 5 documented tools across check, read & search, compare, including check_website, check_seo, check_accessibility, find_broken_links.

Capability map

Tools grouped from the project's README - what Webcheck lets an agent do.

Check

3 tools - e.g. Full health check: SEO score, performance, security headers, image analysis; Deep SEO audit: title, meta, headings, content quality, Open Graph, structured data; Accessibility scan: alt texts, ARIA…

check_website · check_seo · check_accessibility

read & search

1 tool - e.g. Crawl all links on a page and report 404s, timeouts, and redirects

find_broken_links

Compare

1 tool - e.g. Side-by-side comparison of two URLs across all metrics

compare_pages

04 · Who maintains Webcheck

webcheck is maintained by yifanyifan897645. We track 3 MCP servers from yifanyifan897645 - 3 actively maintained, 4 combined GitHub stars, oldest repo from Mar 2026.

05 · Facts

repository: github.com/yifanyifan897645/webcheck-mcp
category: security - ranked #118 of 182 actively-maintained security servers as of 2026-08-25.
registry: io.github.yifanyifan897645/webcheck (active, first published 2026-03-30)
packages: npm:webcheck-mcp

06 · Webcheck FAQ

Is Webcheck still maintained?

Yes - as of 2026-08-25, its last commit was 2026-04-13. We re-verify nightly.

What can Webcheck do?

An agent gets 5 documented tools across check, read & search, compare, including check_website, check_seo, check_accessibility, find_broken_links.

How do I install Webcheck?

Run `npx -y webcheck-mcp`. The README does not document required environment variables for a basic install. You can also paste the ready-made client config above.

Does Webcheck run locally?

Yes - it's a stdio server: it runs on your machine (via npx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Webcheck

Alternatives to Webcheck

Maintained security servers if Webcheck isn't the fit.

Pairs well with

Servers that cover what Webcheck doesn't - only shown when the pairing reason fits the companion.

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