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FinFeedAPI vs Frankfurter

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

APIFinFeedAPIDEAD0FrankfurterHEALTHY86
Uptime · 30d
Uptime · 90d0.0%88.2%
Uptime · 30d0.0%86.7%
P50 · ms—370
P95 · ms—4986
AuthapiKeynone
CORSyesyes
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

FinFeedAPI vs Frankfurter: common questions

Which is more reliable, FinFeedAPI or Frankfurter?

On our scheduled checks, Frankfurter leads on measured uptime — FinFeedAPI at 0.0% 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.

Do FinFeedAPI and Frankfurter need an API key?

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

Can I call FinFeedAPI and Frankfurter from the browser?

Yes — both FinFeedAPI 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 FinFeedAPI and Frankfurter free for commercial use?

FinFeedAPI 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.