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CompanyData.com vs ExchangeRate-API (open)

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

APICompanyData.comHEALTHY68ExchangeRate-API (open)HEALTHY98
Uptime · 30d
Uptime · 90d49.0%100%
Uptime · 30d55.0%100%
P50 · ms243221
P95 · ms9311091
Authnonenone
CORSyesyes
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 49.0% versus ExchangeRate-API (open) at 100% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

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

ExchangeRate-API (open) has the lower median latency in our checks — CompanyData.com responds in 243 ms versus ExchangeRate-API (open) at 221 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

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?

Yes — both CompanyData.com and ExchangeRate-API (open) 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 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.