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Lighthouse MCP

by danielsogl (community)

MCP server that enables AI agents to perform comprehensive web audits using Google Lighthouse. Performance, accessibility, SEO, and best-practice scoring. 57 GitHub stars and 6 commits on main in the last 30 days.

57·5 tools·Released DEC 2025·MIT
npx -y lighthouse-mcp-server
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MCP server that enables AI agents to perform comprehensive web audits using Google Lighthouse. Performance, accessibility, SEO, and best-practice scoring. 57 stars and 6 commits on main in the last 30 days.

Reviewed by M. Nouriel · MAY 2026

INSTALL THIS SERVER

{ "mcpServers": { "lighthouse": { "command": "npx", "args": [ "-y", "lighthouse-mcp-server" ] } } }
PrereqNPM: `lighthouse-mcp-server`. First run downloads headless Chromium (~100MB). Path: ~/Library/Application Support/Claude/claude_desktop_config.json (macOS).
{ "mcpServers": { "lighthouse": { "command": "npx", "args": [ "-y", "lighthouse-mcp-server" ] } } }
{ "mcpServers": { "lighthouse": { "command": "npx", "args": [ "-y", "lighthouse-mcp-server" ] } } }
{ "mcpServers": { "lighthouse": { "command": "npx", "args": [ "-y", "lighthouse-mcp-server" ] } } }
{ "mcpServers": { "lighthouse": { "command": "npx", "args": [ "-y", "lighthouse-mcp-server" ] } } }

5 TOOLS AVAILABLE

run_audit
Run a full Lighthouse audit on a URL
Read
get_scores
Retrieve performance, accessibility, SEO, and best-practice scores
Read
get_core_web_vitals
Retrieve LCP, CLS, INP, and other Core Web Vitals
Read

OUR ASSESSMENT

Strengths
  • 57 GitHub stars.
  • 6 commits on main in the last 30 days.
  • MIT license.
  • No authentication required.
  • Covers all four Lighthouse audit categories (performance, accessibility, SEO, best-practices).
  • Audit comparison supports before/after measurement.
Weaknesses
  • Lighthouse audits take 20-60 seconds; agent invocation timeout may need raising.
  • Headless Chromium download on first run (~100MB).
  • Community-maintained.
Security Notes

No authentication. Lighthouse runs a headless browser against arbitrary URLs; honour target site Terms of Service before running large audit batches. Audit reports may include screenshots; treat scan output as having access to whatever was rendered.

Best For

Performance-budget agents that audit pages on every PR; SEO flows where the agent runs Lighthouse and proposes fixes; accessibility audits inside the agent loop.

TECHNICAL DETAILS

Language
typescript
Transport
stdio
Clients
Claude DesktopClaude CodeCursorVS CodeWindsurf
License
MIT
npm
lighthouse-mcp-server
Last Release
lighthouse-mcp-server (npm latest)MAY 9, 2026
First Released
DEC 1, 2025

ADOPTION METRICS

// GitHub Stars
57

// Reading this57 stars on danielsogl/lighthouse-mcp-server. 6 commits on main in the last 30 days.

// Popularity Rank
#9
Globally · #9 in Dev Tools

// Reading thisPairs with Chrome DevTools, Playwright, BrowserStack, Windows MCP, XcodeBuildMCP, Mobile MCP in dev-tools. Lighthouse MCP owns the web-quality-audit slot.

SOURCES & VERIFICATION

We don't take any single directory's word for it. Before scoring, we cross-reference 4 public MCP sources, install the server ourselves against the clients we cover, and record when we last re-verified.

01
Discovered
Manual submission
First indexed MAY 9, 2026
02
Cross-referenced
4 directories
PulseMCP, MCP.so, Glama, Smithery
03
Verified against
Claude Desktop, Cursor
Installed and tested across clients
04
Last re-checked
MAY 9, 2026
Weekly re-verification
// How other directories see it

The same server, 4 different lenses. We reconcile these signals into our editorial score, which is why our number sometimes diverges from a directory-aggregate star count.

SourceTheir ratingTheir star countTheir downloadsLast synced
AutomationSwitch This page4.2editorial57MAY 9, 2026
PulseMCP— unratedunavailableunavailableMAY 9, 2026
MCP.so— unratedunavailableunavailableMAY 9, 2026
Glama— unratedunavailableunavailableMAY 9, 2026
Smithery— unratedunavailableunavailableMAY 9, 2026

// Counts are directory-reported; we don't adjust them. Discrepancies usually come from different snapshot times or star-caching.

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// Get in touch

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