ViaCep vs Ziptastic
Same instrument, two spec sheets — measured, not claimed.
ViaCep vs Ziptastic: common questions
Which is more reliable, ViaCep or Ziptastic?
On our scheduled checks, Ziptastic leads on measured uptime — ViaCep at 98.0% versus Ziptastic at 100% 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 Ziptastic?
Ziptastic has the lower median latency in our checks — ViaCep responds in 651 ms versus Ziptastic at 366 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 Ziptastic need an API key?
Neither needs a paid key — ViaCep is callable with no signup, and Ziptastic is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call ViaCep and Ziptastic from the browser?
Yes — both ViaCep and Ziptastic 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 ViaCep and Ziptastic free for commercial use?
ViaCep has unclear commercial terms, and Ziptastic 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.