lighthouse-mcp
Provides tools for running Lighthouse web performance audits, including Core Web Vitals (LCP, CLS, INP), performance scores, and optimization opportunities.
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., "@lighthouse-mcpAudit https://example.com performance"
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.
Lighthouse MCP Server
通过 MCP 协议在 Claude 中直接运行 Lighthouse 网页性能审计,获取 Core Web Vitals、性能评分和优化建议。
功能
提供两个 MCP 工具:
audit_url — 单页审计
对一个 URL 运行 Lighthouse,返回:
Core Web Vitals: LCP、CLS、INP
其他性能指标: FCP、TTFB、Speed Index、TBT
分类评分: Performance / Accessibility / SEO / Best Practices (0-100)
优化建议: 按预计可节省时间排序的改进机会
audit_batch — 批量审计
对多个 URL(最多 10 个)并行运行 Lighthouse,返回每个页面的核心指标,适合跨页面对比。
Related MCP server: LightScout MCP
前置条件
Node.js >= 18
Google Chrome — Lighthouse 依赖 Chrome 运行,
chrome-launcher会自动查找。macOS 上安装 Chrome 即可。
安装
git clone <repo-url>/lighthouse-mcp.git
cd lighthouse-mcp
npm install
npm run build在 Claude Code 中使用
在 ~/.claude/claude_desktop_config.json(或对应配置文件)中添加:
{
"mcpServers": {
"lighthouse": {
"command": "node",
"args": ["/path/to/lighthouse-mcp/build/index.js"]
}
}
}配置后重启 Claude Code,即可使用:
帮我审计一下 https://example.com 的性能
对比这三个页面的性能: https://a.com https://b.com https://c.com
用桌面模式审计 https://example.com输出示例
{
"url": "https://example.com",
"device": "mobile",
"scores": { "performance": 85 },
"coreWebVitals": {
"lcp_ms": 2500,
"cls": 0.1,
"inp_ms": 150
},
"otherMetrics": {
"fcp_ms": 1800,
"ttfb_ms": 200,
"speedIndex_ms": 3000,
"tbt_ms": 200
},
"opportunities": [
{ "title": "Reduce unused JavaScript", "potentialSavingsMs": 500 }
]
}技术栈
@modelcontextprotocol/sdk— MCP 协议实现lighthouse— Google Chrome 网页审计工具chrome-launcher— 无头 Chrome 启动TypeScript + ESM
License
MIT
Maintenance
Resources
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Looking for Admin?
If you are the server author, to access and configure the admin panel.
Tools
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