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CompanyData.com vs IBAN Validation API

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

APICompanyData.comNEW—IBAN Validation APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
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

CompanyData.com vs IBAN Validation API: common questions

Which is more reliable, CompanyData.com or IBAN Validation API?

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

Neither needs a paid key — CompanyData.com is callable with no signup, and IBAN Validation API is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call CompanyData.com and IBAN Validation API from the browser?

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

Are CompanyData.com and IBAN Validation API free for commercial use?

CompanyData.com has unclear commercial terms, and IBAN Validation API 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.