WebPerf Snippets MCP Server: Install & Setup

Install WebPerf Snippets in Claude Code

Claude Code

claude mcp add webperf-snippets -- npx -y webperf-snippets

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "webperf-snippets": {
      "command": "npx",
      "args": [
        "-y",
        "webperf-snippets"
      ]
    }
  }
}

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

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

Run: claude mcp add webperf-snippets -- npx -y webperf-snippets

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