IPGEO vs ViaCep
Same instrument, two spec sheets — measured, not claimed.
IPGEO vs ViaCep: common questions
Which is more reliable, IPGEO or ViaCep?
On our scheduled checks, ViaCep leads on measured uptime — IPGEO 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 IPGEO and ViaCep need an API key?
Neither needs a paid key — IPGEO is callable with no signup, and ViaCep is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call IPGEO and ViaCep from the browser?
Yes — both IPGEO and ViaCep 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 IPGEO and ViaCep free for commercial use?
IPGEO 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.