shipapis
StarSubmit an APISubmit API

ViaCep vs Visitor Statistics API

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

APIViaCepHEALTHY87Visitor Statistics APIHEALTHY83
Uptime · 30d
Uptime · 90d93.3%98.9%
Uptime · 30d81.7%100%
P50 · ms5421250
P95 · ms22773187
Authnonenone
CORSyesno
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

ViaCep vs Visitor Statistics API: common questions

Which is more reliable, ViaCep or Visitor Statistics API?

On our scheduled checks, Visitor Statistics API leads on measured uptime — ViaCep at 93.3% versus Visitor Statistics API at 98.9% 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, ViaCep or Visitor Statistics API?

ViaCep has the lower median latency in our checks — ViaCep responds in 542 ms versus Visitor Statistics API at 1250 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 ViaCep and Visitor Statistics API need an API key?

Neither needs a paid key — ViaCep is callable with no signup, and Visitor Statistics API is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call ViaCep and Visitor Statistics API from the browser?

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

Are ViaCep and Visitor Statistics API free for commercial use?

ViaCep has unclear commercial terms, and Visitor Statistics API 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.