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openrouteservice.org vs ViaCep

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

APIopenrouteservice.orgNEW—ViaCepNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key may be required for productionFree — limits not published
Rate limit300 req/window · 299 remaining · resets 2026-07-08T16:35:00.355819ZUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

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 —% 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 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.