State of Web Vitals MCP Server: Install & Setup

Install State of Web Vitals in Claude Code

Claude Code

claude mcp add --transport http state-of-web-vitals https://www.corewebvitals.io/api/state-of-cwv/mcp

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

{
  "mcpServers": {
    "state-of-web-vitals": {
      "url": "https://www.corewebvitals.io/api/state-of-cwv/mcp"
    }
  }
}

Frequently asked questions

What does the State of Web Vitals MCP server do?

Core Web Vitals metrics by CMS, CDN and framework, based on Chrome field data and a multi-site crawl.

Is the State of Web Vitals MCP server free?

The server is free, but you will likely need an account. The server itself is free, but it connects to a service that needs an account or API key, which may have paid tiers. Check the provider for current pricing.

Does State of Web Vitals run locally or remotely?

Remote. Hosted by the provider. You connect with a URL, nothing to install.

How do I add State of Web Vitals to Claude Code?

Run: claude mcp add --transport http state-of-web-vitals https://www.corewebvitals.io/api/state-of-cwv/mcp

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