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Currencyapi vs World Trading Data

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

APICurrencyapiNEW—World Trading DataNEW—
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 — API key may be required for production
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Currencyapi vs World Trading Data: common questions

Which is more reliable, Currencyapi or World Trading Data?

On our scheduled checks, World Trading Data leads on measured uptime — Currencyapi at —% versus World Trading Data 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 World Trading Data need an API key?

Both ask you to authenticate — Currencyapi uses an API key and World Trading Data 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 World Trading Data from the browser?

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

Are Currencyapi and World Trading Data free for commercial use?

Currencyapi has unclear commercial terms, and World Trading Data 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.