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Exchangerate.host vs Polish Bank Branches

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

APIExchangerate.hostNEW—Polish Bank BranchesNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Exchangerate.host vs Polish Bank Branches: common questions

Which is more reliable, Exchangerate.host or Polish Bank Branches?

On our scheduled checks, Polish Bank Branches leads on measured uptime — Exchangerate.host at —% versus Polish Bank Branches 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 Exchangerate.host and Polish Bank Branches need an API key?

Neither needs a paid key — Exchangerate.host is callable with no signup, and Polish Bank Branches is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Exchangerate.host and Polish Bank Branches from the browser?

Yes — both Exchangerate.host and Polish Bank Branches 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 Polish Bank Branches free for commercial use?

Exchangerate.host has unclear commercial terms, and Polish Bank Branches 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.