CurrencyScoop vs Frankfurter

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

Uptime · 30d
Uptime · 90d100%88.2%
Uptime · 30d100%86.7%
P50 · ms346370
P95 · ms31954986
AuthapiKeynone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearyes
Data licenseUnverifiedPublic data (ECB reference rates)
Free tierFree tier — API key requiredUnlimited — abuse-rate-limited only
Rate limitUnpublishedUnpublished, generous
In directory since2026-07-052026-05-02
operationalpartialdownno data

CurrencyScoop vs Frankfurter: common questions

Which is more reliable, CurrencyScoop or Frankfurter?

On our scheduled checks, CurrencyScoop leads on measured uptime — CurrencyScoop 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, CurrencyScoop or Frankfurter?

CurrencyScoop has the lower median latency in our checks — CurrencyScoop responds in 346 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 CurrencyScoop and Frankfurter need an API key?

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

Can I call CurrencyScoop and Frankfurter from the browser?

Only Frankfurter is browser-friendly — it returns CORS headers over HTTPS. CurrencyScoop needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are CurrencyScoop and Frankfurter free for commercial use?

CurrencyScoop 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.