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IBAN Validation API vs Unirate

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

APIIBAN Validation APINEW—UnirateREACHABLE—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

IBAN Validation API vs Unirate: common questions

Which is more reliable, IBAN Validation API or Unirate?

On our scheduled checks, Unirate leads on measured uptime — IBAN Validation API at —% versus Unirate 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 IBAN Validation API and Unirate need an API key?

IBAN Validation API needs no key, while Unirate requires a free API key. If you want to start calling without signup, reach for IBAN Validation API first.

Can I call IBAN Validation API and Unirate from the browser?

Yes — both IBAN Validation API and Unirate 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 IBAN Validation API and Unirate free for commercial use?

IBAN Validation API has unclear commercial terms, and Unirate 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.