bng2latlong vs ViaCep

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

Uptime · 30d
Uptime · 90d95.1%98.0%
Uptime · 30d95.0%98.3%
P50 · ms524651
P95 · ms24312277
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

bng2latlong vs ViaCep: common questions

Which is more reliable, bng2latlong or ViaCep?

On our scheduled checks, ViaCep leads on measured uptime — bng2latlong at 95.1% 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, bng2latlong or ViaCep?

bng2latlong has the lower median latency in our checks — bng2latlong responds in 524 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 bng2latlong and ViaCep need an API key?

Neither needs a paid key — bng2latlong 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 bng2latlong and ViaCep from the browser?

Yes — both bng2latlong 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 bng2latlong and ViaCep free for commercial use?

bng2latlong 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.