Exchangerate.host vs TaxID

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

Uptime · 30d
Uptime · 90d99.02%100%
Uptime · 30d98.3%100%
P50 · ms398729
P95 · ms36371556
AuthnoneapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — key may be required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Exchangerate.host vs TaxID: common questions

Which is more reliable, Exchangerate.host or TaxID?

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

Exchangerate.host has the lower median latency in our checks — Exchangerate.host responds in 398 ms versus TaxID at 729 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 TaxID need an API key?

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

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

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

Are Exchangerate.host and TaxID free for commercial use?

Exchangerate.host has unclear commercial terms, and TaxID 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.