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CustomGPT.ai vs IP Geolocation API

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

APICustomGPT.aiNEW—IP Geolocation APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

CustomGPT.ai vs IP Geolocation API: common questions

Which is more reliable, CustomGPT.ai or IP Geolocation API?

On our scheduled checks, IP Geolocation API leads on measured uptime — CustomGPT.ai at —% versus IP Geolocation 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 CustomGPT.ai and IP Geolocation API need an API key?

IP Geolocation API needs no key, while CustomGPT.ai requires a free API key. If you want to start calling without signup, reach for IP Geolocation API first.

Can I call CustomGPT.ai and IP Geolocation API from the browser?

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

Are CustomGPT.ai and IP Geolocation API free for commercial use?

CustomGPT.ai has unclear commercial terms, and IP Geolocation 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.