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ipapi.co vs ISO 3166-2 API

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

APIipapi.coDYING35ISO 3166-2 APIHEALTHY84
Uptime · 30d
Uptime · 90d1.0%100%
Uptime · 30d1.7%100%
P50 · ms4401056
P95 · ms4402865
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — quota not published; returns 429 when exceededFree — limits not published
Rate limitUnpublished (429 Quota exceeded)Unpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

ipapi.co vs ISO 3166-2 API: common questions

Which is more reliable, ipapi.co or ISO 3166-2 API?

On our scheduled checks, ISO 3166-2 API leads on measured uptime — ipapi.co at 1.0% versus ISO 3166-2 API at 100% 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.co or ISO 3166-2 API?

ipapi.co has the lower median latency in our checks — ipapi.co responds in 440 ms versus ISO 3166-2 API at 1056 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.co and ISO 3166-2 API need an API key?

Neither needs a paid key — ipapi.co is callable with no signup, and ISO 3166-2 API is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call ipapi.co and ISO 3166-2 API from the browser?

Yes — both ipapi.co and ISO 3166-2 API 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 ipapi.co and ISO 3166-2 API free for commercial use?

ipapi.co has unclear commercial terms, and ISO 3166-2 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.