Iron/Out UX Score Benchmark for VS 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:VS Code transport:streamable-http tools:2

Install Iron/Out UX Score Benchmark in VS Code

.vscode/mcp.json

{
  "servers": {
    "ux-benchmark": {
      "type": "http",
      "url": "https://www.iron-out.io/mcp"
    }
  }
}

Requires agent mode. MCP: Open User Configuration puts the same block in every workspace. VS Code docs