State of Web Vitals for Claude Code

io.github.corewebvitals/state-of-cwv

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

client:Claude Code transport:streamable-http tools:3

Install State of Web Vitals in Claude Code

run in your project directory

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

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs