Free Jobs API vs ViaCep

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

Uptime · 30d
Uptime · 90d98.0%98.0%
Uptime · 30d98.3%98.3%
P50 · ms833651
P95 · ms47632277
Authnonenone
CORSnoyes
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

Free Jobs API vs ViaCep: common questions

Which is more reliable, Free Jobs API or ViaCep?

Both are neck-and-neck — Free Jobs API and ViaCep each measure 98.0% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Which is faster, Free Jobs API or ViaCep?

ViaCep has the lower median latency in our checks — Free Jobs API responds in 833 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 Free Jobs API and ViaCep need an API key?

Neither needs a paid key — Free Jobs 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 Free Jobs API and ViaCep from the browser?

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

Are Free Jobs API and ViaCep free for commercial use?

Free Jobs 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.