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CompanyData.com vs ExchangeRate-API (open)

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

APICompanyData.comNEW—ExchangeRate-API (open)NEW—
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 ExchangeRate-API (open): common questions

Which is more reliable, CompanyData.com or ExchangeRate-API (open)?

On our scheduled checks, ExchangeRate-API (open) leads on measured uptime — CompanyData.com at —% versus ExchangeRate-API (open) 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 ExchangeRate-API (open) need an API key?

Neither needs a paid key — CompanyData.com is callable with no signup, and ExchangeRate-API (open) is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call CompanyData.com and ExchangeRate-API (open) from the browser?

Only ExchangeRate-API (open) 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 ExchangeRate-API (open) free for commercial use?

CompanyData.com has unclear commercial terms, and ExchangeRate-API (open) 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.