Playwright Lighthouse Audit
Most browser automation work still happens through a UI a human drives. Playwright MCP server moves it into the conversation instead. Playwright Lighthouse Audit.
Lighthouse is a tool developed by Google that analyzes web apps and web pages, collecting modern performance metrics and insights on developer best practices.
The server publishes 3 tools. What each one is for:
v3.x.x — 10v4.x.x — 11Installation — Add the playwright-lighthouse, playwright & lighthouse libraries to your project:The server ships on npm as playwright-lighthouse, so your MCP client can launch it on demand — there is no separate build step. Add the server block to your client's configuration, restart it, and the tools register themselves.
Configuration is passed through the environment: LIGHTHOUSE_LAMBDATEST, LT_ACCESS_KEY. Treat anything key-shaped as a real credential — scope it to the minimum the server needs, and rotate it if it ever lands in a shared config.
This sits in the browser automation group, where several servers overlap in what they claim to do but differ sharply once you actually set them up. Playwright's toolset — v3.x.x, v4.x.x, Installation — is a fair guide to whether it matches your workflow. It is maintained by abhinaba-ghosh; worth a glance at recent repository activity before you build anything load-bearing on it.
We check each listing at SyncDev against the project's documentation before it goes live — if something here drifts out of date, it is a bug worth reporting.
| Tool | What it does |
|---|---|
| v3.x.x | 10 |
| v4.x.x | 11 |
| Installation | Add the playwright-lighthouse, playwright & lighthouse libraries to your project: |
{
"mcpServers": {
"playwright-lighthouse": {
"command": "npx",
"args": ["-y", "playwright-lighthouse"],
"env": {
"LIGHTHOUSE_LAMBDATEST": "your-value",
"LT_ACCESS_KEY": "your-value"
}
}
}
}Add to claude_desktop_config.json, then restart Claude Desktop.
| Variable | Description | Required |
|---|---|---|
| LIGHTHOUSE_LAMBDATEST | Configuration value read at startup. | Optional |
| LT_ACCESS_KEY | Credential the server authenticates with. | Yes |
Microsoft's official browser automation server — drive a real browser through the accessibility tree, no screenshots needed.
Industrial-strength web extraction — render, scrape, crawl and search entire sites into clean markdown.
The original Chromium automation reference server — simple, screenshot-driven browser control.
Give your coding agent the full DevTools toolbox: traces, network, console, heap snapshots and Lighthouse.
Puppeteer-powered browser control that drives pages from the accessibility tree instead of pixels.
Cloud browsers for AI agents — automation sessions that run in Browserbase's fleet, not on your machine.