Iron/Out UX Score Benchmark for Claude Code

io.iron-out/ux-benchmark

UX Score and Web Vitals (TTFB, FCP, LCP, INP, CLS) for any website, from real-user CrUX data.

client:Claude Code transport:streamable-http tools:2

Install Iron/Out UX Score Benchmark in Claude Code

run in your project directory

claude mcp add --transport http ux-benchmark https://www.iron-out.io/mcp

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs