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Brazil Receita WS vs Conversor IAE CNAE

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

APIBrazil Receita WSNEW—Conversor IAE CNAENEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limit3 req/window · 2 remainingUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Brazil Receita WS vs Conversor IAE CNAE: common questions

Which is more reliable, Brazil Receita WS or Conversor IAE CNAE?

On our scheduled checks, Conversor IAE CNAE leads on measured uptime — Brazil Receita WS at —% versus Conversor IAE CNAE 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 Brazil Receita WS and Conversor IAE CNAE need an API key?

Brazil Receita WS needs no key, while Conversor IAE CNAE requires a free API key. If you want to start calling without signup, reach for Brazil Receita WS first.

Can I call Brazil Receita WS and Conversor IAE CNAE from the browser?

Neither sends browser-friendly CORS headers reliably, so call Brazil Receita WS and Conversor IAE CNAE from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are Brazil Receita WS and Conversor IAE CNAE free for commercial use?

Brazil Receita WS has unclear commercial terms, and Conversor IAE CNAE 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.