Query Speed Insights from the Vercel CLI
By Steven Van ·
The vercel metrics command pulls Core Web Vitals and other performance data from real user traffic, no Observability Plus subscription required.
The Vercel CLI can now query Speed Insights data directly from the terminal. The new vercel metrics command pulls Core Web Vitals (LCP, INP, CLS) and other page performance metrics (FCP, TTFB) from real user, client-side measurements, and works without an Observability Plus subscription.
Vercel says the command is meant for coding agents as well as developers: giving an agent CLI access lets it answer questions like which pages' INP have regressed since last week, how a home page's perceived speed compares in Asia, or how the dashboard's CLS differs between mobile and desktop. Full details on supported metrics, dimensions, filters and query options are in the documentation.