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IP Data API vs Zippopotam.us

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

APIIP Data APINEW—Zippopotam.usNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

IP Data API vs Zippopotam.us: common questions

Which is more reliable, IP Data API or Zippopotam.us?

On our scheduled checks, Zippopotam.us leads on measured uptime — IP Data API at —% versus Zippopotam.us 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 Data API and Zippopotam.us need an API key?

Neither needs a paid key — IP Data API is callable with no signup, and Zippopotam.us is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call IP Data API and Zippopotam.us from the browser?

Yes — both IP Data API and Zippopotam.us send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are IP Data API and Zippopotam.us free for commercial use?

IP Data API has unclear commercial terms, and Zippopotam.us 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.