Lighthouse MCP
Open-source MCP server by priyankark exposing Lighthouse to Claude Code, Cursor, and other AI runtimes. Lets an agent run a complete Lighthouse audit (performance, accessibility, SEO, best practices) and reason on 0-100 scores + detailed recommendations. Alternative to lighthouse_audit in the official Chrome DevTools MCP, lighter, without full Chrome DevTools dependency.
Strengths
- Multi-axis coverage: perf + a11y + SEO + best practices in one tool
- Open-source, free, trivial Node.js install
- Natural loop generate → audit → fix in the same agent session
Limitations
- A11y less deep than axe-mcp, Lighthouse a11y ≈ axe-core subset
- Maintained by a solo dev, sustainability risk
Best for
- First audit MCP for a team wanting perf + a11y + SEO in one loop
- Legacy non-Chrome stacks where the official Chrome DevTools MCP does not run