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State of Web Vitals

MCP server · by corewebvitals

Developer Tools Streamable HTTP v1.0.1

Core Web Vitals metrics by CMS, CDN, and framework — free remote MCP, no auth.

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Install

Run one of the commands below, then add the client config underneath.

Streamable HTTPhttps://www.corewebvitals.io/api/state-of-cwv/mcp

Client configuration

Paste into Claude Desktop, Cursor (mcp.json), VS Code or any MCP client, then restart the client.

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

About this server

State of Web Vitals is listed in the Developer Tools category of the MCPNav directory. It is distributed as Streamable HTTP and can be loaded by any client that speaks the Model Context Protocol.

Typical uses include giving your assistant scoped access to the corresponding service so it can answer questions and take actions with real data instead of guessing. Always review what a server can access before you enable it — see our MCP security guide.

Frequently asked questions

What is the State of Web Vitals MCP server?

State of Web Vitals is an MCP server by corewebvitals. Core Web Vitals metrics by CMS, CDN, and framework — free remote MCP, no auth.

How do I install State of Web Vitals?

Install it with: https://www.corewebvitals.io/api/state-of-cwv/mcp. Then add the JSON config to your client's MCP settings and restart the client.

Is State of Web Vitals free to use?

The MCP server itself is free to install. The source is public on https://github.com/corewebvitals/state-of-cwv-mcp. Any third-party API it calls (such as a search or maps API) may require its own key and billing.

Which clients support State of Web Vitals?

Any MCP-compatible client can use it, including Claude Desktop, Cursor, VS Code, Windsurf and custom agents.