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Marketstack vs Polish Bank Branches

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

APIMarketstackNEW—Polish Bank BranchesNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — key may be requiredFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Marketstack vs Polish Bank Branches: common questions

Which is more reliable, Marketstack or Polish Bank Branches?

On our scheduled checks, Polish Bank Branches leads on measured uptime — Marketstack 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 Marketstack and Polish Bank Branches need an API key?

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

Can I call Marketstack and Polish Bank Branches from the browser?

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

Are Marketstack and Polish Bank Branches free for commercial use?

Marketstack 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.