CompanyData.com vs Exchange Rates API
Same instrument, two spec sheets — measured, not claimed.
CompanyData.com vs Exchange Rates API: common questions
Which is more reliable, CompanyData.com or Exchange Rates API?
On our scheduled checks, Exchange Rates API leads on measured uptime — CompanyData.com at 49.0% versus Exchange Rates API 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 Exchange Rates API?
CompanyData.com has the lower median latency in our checks — CompanyData.com responds in 243 ms versus Exchange Rates API at 810 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 Exchange Rates API need an API key?
Neither needs a paid key — CompanyData.com is callable with no signup, and Exchange Rates API is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call CompanyData.com and Exchange Rates API from the browser?
Yes — both CompanyData.com and Exchange Rates API 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 Exchange Rates API free for commercial use?
CompanyData.com has unclear commercial terms, and Exchange Rates 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.