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Currencyapi vs Currencylayer

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

APICurrencyapiNEW—CurrencylayerNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeyapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree tier — key may be required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Currencyapi vs Currencylayer: common questions

Which is more reliable, Currencyapi or Currencylayer?

On our scheduled checks, Currencylayer leads on measured uptime — Currencyapi at —% versus Currencylayer at —% 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 Currencyapi and Currencylayer need an API key?

Both ask you to authenticate — Currencyapi uses an API key and Currencylayer uses an API key. Each key is free to obtain; the Auth and Card-required rows above spell out the signup terms.

Can I call Currencyapi and Currencylayer from the browser?

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

Are Currencyapi and Currencylayer free for commercial use?

Currencyapi has unclear commercial terms, and Currencylayer has unclear commercial terms. 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.