bitpay API vs Exchange Rates API

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

Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms489810
P95 · ms22444162
AuthapiKeynone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key may be required for productionFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

bitpay API vs Exchange Rates API: common questions

Which is more reliable, bitpay API or Exchange Rates API?

Both are neck-and-neck — bitpay API and Exchange Rates API each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Which is faster, bitpay API or Exchange Rates API?

bitpay API has the lower median latency in our checks — bitpay API responds in 489 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 bitpay API and Exchange Rates API need an API key?

Exchange Rates API needs no key, while bitpay API requires a free API key. If you want to start calling without signup, reach for Exchange Rates API first.

Can I call bitpay API and Exchange Rates API from the browser?

Yes — both bitpay API 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 bitpay API and Exchange Rates API free for commercial use?

bitpay API 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.