shipapis
StarSubmit an APISubmit API

ItsThisForThat vs Vercel API

Same instrument, two spec sheets — measured, not claimed.

APIItsThisForThatNEW—Vercel APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublished (docs ask you not to hammer it)Unpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

ItsThisForThat vs Vercel API: common questions

Which is more reliable, ItsThisForThat or Vercel API?

On our scheduled checks, Vercel API leads on measured uptime — ItsThisForThat at —% versus Vercel API at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Do ItsThisForThat and Vercel API need an API key?

ItsThisForThat needs no key, while Vercel API requires a free API key. If you want to start calling without signup, reach for ItsThisForThat first.

Can I call ItsThisForThat and Vercel API from the browser?

Only Vercel API is browser-friendly — it returns CORS headers over HTTPS. ItsThisForThat needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are ItsThisForThat and Vercel API free for commercial use?

ItsThisForThat has unclear commercial terms, and Vercel API has unclear commercial terms. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.