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Currencylayer vs Markbase

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

APICurrencylayerNEW—MarkbaseNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — key may be requiredFree — limits not published
Rate limitUnpublished30 req/window · 29 remaining · resets 1783519324
In directory since2026-07-052026-07-05
operationalpartialdownno data

Currencylayer vs Markbase: common questions

Which is more reliable, Currencylayer or Markbase?

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

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

Can I call Currencylayer and Markbase from the browser?

Only Markbase 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 Currencylayer and Markbase free for commercial use?

Currencylayer has unclear commercial terms, and Markbase 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.