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IP2Location vs ViaCep

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

APIIP2LocationREACHABLE—ViaCepNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSnoyes
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

IP2Location vs ViaCep: common questions

Which is more reliable, IP2Location or ViaCep?

On our scheduled checks, ViaCep leads on measured uptime — IP2Location at —% versus ViaCep 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 IP2Location and ViaCep need an API key?

ViaCep needs no key, while IP2Location requires a free API key. If you want to start calling without signup, reach for ViaCep first.

Can I call IP2Location and ViaCep from the browser?

Only ViaCep is browser-friendly — it returns CORS headers over HTTPS. IP2Location needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are IP2Location and ViaCep free for commercial use?

IP2Location has unclear commercial terms, and ViaCep 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.