Colombia Public API vs ViaCep
Same instrument, two spec sheets — measured, not claimed.
Colombia Public API vs ViaCep: common questions
Which is more reliable, Colombia Public API or ViaCep?
On our scheduled checks, Colombia Public API leads on measured uptime — Colombia Public API at 100% 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, Colombia Public API or ViaCep?
ViaCep has the lower median latency in our checks — Colombia Public API responds in 840 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 Colombia Public API and ViaCep need an API key?
Neither needs a paid key — Colombia Public API 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 Colombia Public API and ViaCep from the browser?
Yes — both Colombia Public API 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 Colombia Public API and ViaCep free for commercial use?
Colombia Public API 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.