shipapis
StarSubmit an APISubmit API

ExchangeRate-API (open) vs World Trading Data

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

APIExchangeRate-API (open)HEALTHY98World Trading DataHEALTHY94
Uptime · 30d
Uptime · 90d100%99.02%
Uptime · 30d100%98.3%
P50 · ms221423
P95 · ms1091920
AuthnoneapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key may be required for production
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

ExchangeRate-API (open) vs World Trading Data: common questions

Which is more reliable, ExchangeRate-API (open) or World Trading Data?

On our scheduled checks, ExchangeRate-API (open) leads on measured uptime — ExchangeRate-API (open) at 100% versus World Trading Data at 99.02% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Which is faster, ExchangeRate-API (open) or World Trading Data?

ExchangeRate-API (open) has the lower median latency in our checks — ExchangeRate-API (open) responds in 221 ms versus World Trading Data at 423 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do ExchangeRate-API (open) and World Trading Data need an API key?

ExchangeRate-API (open) needs no key, while World Trading Data requires a free API key. If you want to start calling without signup, reach for ExchangeRate-API (open) first.

Can I call ExchangeRate-API (open) and World Trading Data from the browser?

Only ExchangeRate-API (open) 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 ExchangeRate-API (open) and World Trading Data free for commercial use?

ExchangeRate-API (open) 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.