Frankfurter
No keyCORS ✓B · 84
Free currency exchange rates, updated daily from the European Central Bank. No key ever.
IIN API allows you to accurately identify the issuing bank, card type, country of origin, and other details from a credit or debit card number. This is essential for fraud preventi
This API comes from the open public-apis dataset (MIT license), and its official site passed our link check on 23 Oct 2026 (HTTP 200). We have not yet run a full endpoint test on it — those happen in weekly passes, most-wanted first. Until then: no playground and no fake badges, just an honest listing.
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📜 Full check history & uptime · Status as JSON · Health score: D · 54/100
🔔 Watch this API — a quiet feed that only speaks the week its status changes (down, recovered, reclassified). How it works
Free currency exchange rates, updated daily from the European Central Bank. No key ever.
150+ currency rates served from a CDN — blazing fast and totally keyless.
Crypto prices, tickers and exchanges — a real free tier with no key for basic calls.