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InfraNode Open Data API vs ViaCep

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

APIInfraNode Open Data APINEW—ViaCepNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limit300 req/window · 299 remaining · resets 1783517525.6504178Unpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

InfraNode Open Data API vs ViaCep: common questions

Which is more reliable, InfraNode Open Data API or ViaCep?

On our scheduled checks, ViaCep leads on measured uptime — InfraNode Open Data API at —% versus ViaCep at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Do InfraNode Open Data API and ViaCep need an API key?

Neither needs a paid key — InfraNode Open Data 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 InfraNode Open Data API and ViaCep from the browser?

Yes — both InfraNode Open Data 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 InfraNode Open Data API and ViaCep free for commercial use?

InfraNode Open Data 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.