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ipapi.com vs OpenPLZ API

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

APIipapi.comHEALTHY96OpenPLZ APIHEALTHY94
Uptime · 30d
Uptime · 90d100%99.02%
Uptime · 30d100%98.3%
P50 · ms301561
P95 · ms1575903
AuthapiKeynone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — key may be requiredFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

ipapi.com vs OpenPLZ API: common questions

Which is more reliable, ipapi.com or OpenPLZ API?

On our scheduled checks, ipapi.com leads on measured uptime — ipapi.com at 100% versus OpenPLZ API at 99.02% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Which is faster, ipapi.com or OpenPLZ API?

ipapi.com has the lower median latency in our checks — ipapi.com responds in 301 ms versus OpenPLZ API at 561 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do ipapi.com and OpenPLZ API need an API key?

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

Can I call ipapi.com and OpenPLZ API from the browser?

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

Are ipapi.com and OpenPLZ API free for commercial use?

ipapi.com has unclear commercial terms, and OpenPLZ 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.