Exchangerate.host vs Unirate

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

Uptime · 30d
Uptime · 90d99.02%100%
Uptime · 30d98.3%100%
P50 · ms398324
P95 · ms3637611
AuthnoneapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Exchangerate.host vs Unirate: common questions

Which is more reliable, Exchangerate.host or Unirate?

On our scheduled checks, Unirate leads on measured uptime — Exchangerate.host at 99.02% versus Unirate at 100% 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.host or Unirate?

Unirate has the lower median latency in our checks — Exchangerate.host responds in 398 ms versus Unirate at 324 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.host and Unirate need an API key?

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

Can I call Exchangerate.host and Unirate from the browser?

Yes — both Exchangerate.host and Unirate send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are Exchangerate.host and Unirate free for commercial use?

Exchangerate.host has unclear commercial terms, and Unirate 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.