Chrome UX Report MCP capabilities
This catalog contains 6 public pages—one for every registered MCP tool in mcp-google-crux. Each page starts with the user's task, explains the result, and states whether the call changes real data.
Use this catalog to choose a ready-made capability. Full parameter schemas and API response details remain in the technical reference.
Core Web Vitals
- Phone vs desktop vs tablet — Compares real-user performance across device classes for an origin or URL: one aggregated all-devices record plus phone, desktop and tablet records (4 API requests = 4 quota units of the 150/min budget). Impact: read-only.
- Origin vs specific page — Compares the site-wide origin record against one specific page (2 API requests): p75 + rating per metric for each, so you can tell whether a page is faster or slower than the site average. Impact: read-only.
- Core Web Vitals assessment — One-call Core Web Vitals assessment for an origin or URL over the latest 28-day window. Impact: read-only.
- Core Web Vitals trend — Weekly p75 trend for an origin or URL from the CrUX History API (1 request). Impact: read-only.
Raw records
- CrUX weekly timeseries (raw) — Returns the weekly CrUX timeseries for an origin or URL (raw API response, updated Mondays ~04:00 UTC): up to 40 collection periods, each a 28-day rolling window. Impact: read-only.
- Latest CrUX record (raw) — Returns the latest 28-day rolling CrUX record for an origin or URL (raw API response, updated daily ~04:00 UTC). Impact: read-only.