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Currencyapi vs Fed Treasury

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

APICurrencyapiDEAD0Fed TreasuryDEAD0
Uptime · 30d
Uptime · 90d0.0%0.0%
Uptime · 30d0.0%0.0%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearyes
Data licenseUnverifiedOpen U.S. Government data (public domain)
Free tierFree tier — API key requiredFree — no API key
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Currencyapi vs Fed Treasury: common questions

Which is more reliable, Currencyapi or Fed Treasury?

Both are neck-and-neck — Currencyapi and Fed Treasury each measure 0.0% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Do Currencyapi and Fed Treasury need an API key?

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

Can I call Currencyapi and Fed Treasury from the browser?

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

Are Currencyapi and Fed Treasury free for commercial use?

Currencyapi has unclear commercial terms, and Fed Treasury allows commercial use on its free tier. 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.