Frankfurter
No keyCORS ✓B · 84
Free currency exchange rates, updated daily from the European Central Bank. No key ever.
Free JSON-RPC gateway for 31 blockchains, including Ethereum, Base, Arbitrum, Solana and Sui, with one URL per chain and no sign-up
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: C · 58/100
🔔 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.