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Adyen Checkout API vs Polish Bank Branches

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

APIAdyen Checkout APIHEALTHY95Polish Bank BranchesHEALTHY80
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms4182310
P95 · ms16674135
AuthapiKeynone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Adyen Checkout API vs Polish Bank Branches: common questions

Which is more reliable, Adyen Checkout API or Polish Bank Branches?

Both are neck-and-neck — Adyen Checkout API and Polish Bank Branches each measure 100% 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.

Which is faster, Adyen Checkout API or Polish Bank Branches?

Adyen Checkout API has the lower median latency in our checks — Adyen Checkout API responds in 418 ms versus Polish Bank Branches at 2310 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 Adyen Checkout API and Polish Bank Branches need an API key?

Polish Bank Branches needs no key, while Adyen Checkout API requires a free API key. If you want to start calling without signup, reach for Polish Bank Branches first.

Can I call Adyen Checkout API and Polish Bank Branches from the browser?

Only Polish Bank Branches is browser-friendly — it returns CORS headers over HTTPS. Adyen Checkout API needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Adyen Checkout API and Polish Bank Branches free for commercial use?

Adyen Checkout API 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.