openrouteservice.org vs ViaCep
Same instrument, two spec sheets — measured, not claimed.
openrouteservice.org vs ViaCep: common questions
Which is more reliable, openrouteservice.org or ViaCep?
On our scheduled checks, ViaCep leads on measured uptime — openrouteservice.org at 96.1% versus ViaCep at 98.0% 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, openrouteservice.org or ViaCep?
openrouteservice.org has the lower median latency in our checks — openrouteservice.org responds in 531 ms versus ViaCep at 651 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 openrouteservice.org and ViaCep need an API key?
ViaCep needs no key, while openrouteservice.org requires a free API key. If you want to start calling without signup, reach for ViaCep first.
Can I call openrouteservice.org and ViaCep from the browser?
Yes — both openrouteservice.org 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 openrouteservice.org and ViaCep free for commercial use?
openrouteservice.org 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.