Query data on external API requests in Vercel Observability
Vercel's Observability Plus now lets you monitor AI API costs and latency in real time—critical for teams shipping with external models.

Why it matters
As AI integrations become standard in production apps, observability tooling that tracks external API performance (including AI providers) is becoming table stakes for engineering teams managing cost and latency.
The key facts
9 to knowVercel Observability Plus adds external API request querying and visualization
Supports custom queries on request counts and TTFB for external API calls including AI providers
TTFB metrics include average, min, max, p75, p90, p95, p99 breakdowns
Available to Pro and Enterprise teams using Observability Plus
Filter/group results by request hostname
Vercel Observability Plus adds query builder for external API requests
Supports custom queries on request counts and TTFB (time to first byte)
Available to Pro and Enterprise teams
Feature specifically mentions support for 'requests to an AI provider'
Go to the source
Vercel Blogvercel.com
Publisher excerpt: Observability Plus now supports querying and visualizing external API requests. Observability Plus's allows customers to explore their Vercel data and visualize traffic, performance, and other key metrics. You can now author custom queries on request counts or time to first byte (TTFB) for external…