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ip-api.com vs Vercel API

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

APIip-api.comNEW—Vercel APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesyes
HTTPSnoyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

ip-api.com vs Vercel API: common questions

Which is more reliable, ip-api.com or Vercel API?

On our scheduled checks, Vercel API leads on measured uptime — ip-api.com 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 ip-api.com and Vercel API need an API key?

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

Can I call ip-api.com and Vercel API from the browser?

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

Are ip-api.com and Vercel API free for commercial use?

ip-api.com 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.