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bitpay API vs Frankfurter

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

APIbitpay APIHEALTHY93FrankfurterHEALTHY86
Uptime · 30d
Uptime · 90d100%88.2%
Uptime · 30d100%86.7%
P50 · ms489370
P95 · ms22444986
AuthapiKeynone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearyes
Data licenseUnverifiedPublic data (ECB reference rates)
Free tierFree tier — API key may be required for productionUnlimited — abuse-rate-limited only
Rate limitUnpublishedUnpublished, generous
In directory since2026-07-052026-05-02
operationalpartialdownno data

bitpay API vs Frankfurter: common questions

Which is more reliable, bitpay API or Frankfurter?

On our scheduled checks, bitpay API leads on measured uptime — bitpay API at 100% versus Frankfurter at 88.2% 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, bitpay API or Frankfurter?

Frankfurter has the lower median latency in our checks — bitpay API responds in 489 ms versus Frankfurter at 370 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 Frankfurter need an API key?

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

Can I call bitpay API and Frankfurter from the browser?

Yes — both bitpay API and Frankfurter 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 Frankfurter free for commercial use?

bitpay API has unclear commercial terms, and Frankfurter allows commercial use on its free tier. 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.