Exchangerate.dev vs RBA Exchange Rates API

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

Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms
P95 · ms
AuthnoneapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limit12 req/window · 11 remaining · resets 1783515720Unpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Exchangerate.dev vs RBA Exchange Rates API: common questions

Which is more reliable, Exchangerate.dev or RBA Exchange Rates API?

On our scheduled checks, RBA Exchange Rates API leads on measured uptime — Exchangerate.dev at —% versus RBA Exchange Rates API 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 Exchangerate.dev and RBA Exchange Rates API need an API key?

Exchangerate.dev needs no key, while RBA Exchange Rates API requires a free API key. If you want to start calling without signup, reach for Exchangerate.dev first.

Can I call Exchangerate.dev and RBA Exchange Rates API from the browser?

Only RBA Exchange Rates API is browser-friendly — it returns CORS headers over HTTPS. Exchangerate.dev needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Exchangerate.dev and RBA Exchange Rates API free for commercial use?

Exchangerate.dev has unclear commercial terms, and RBA Exchange Rates API 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.