CuratedMCP
Claude Code
npm

How to install WebPerf Snippets in Claude Code

Measure Core Web Vitals and debug web performance with 56 snippets in a headless Chromium

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We found WebPerf Snippets in the official MCP registry. Our automated check passed on Nov 1, 2026 (it confirms the server is published and reachable), but no one at CuratedMCP has reviewed its code, permissions or credentials handling. Check what it can access before you give it keys. Scan your machine free to see every MCP server you have installed.

Steps

  1. 1Install Node.js 18 or newer (for npx)
  2. 2Run the command below in your project folder
  3. 3Start Claude Code and run /mcp to confirm it's connected

Command

Run in your terminal
claude mcp add webperf-snippets -- npx -y webperf-snippets

Add --scope user to make it available in every project.

Environment variableRequiredWhat it is
CRUX_API_KEYsecretNoChrome UX Report API key for the field data of get_crux; the other tools work without it

Install in other clients

CursorClaude DesktopWindsurfGemini CLIOpenAI Agents SDK

About WebPerf Snippets: repo, license and check results →

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    How to install WebPerf Snippets MCP server in Claude Code | CuratedMCP