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OOPSpam vs Passantenfrequenzen Zürich

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

APIOOPSpamNEW—Passantenfrequenzen ZürichNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limit1000 req/window · 999 remainingUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

OOPSpam vs Passantenfrequenzen Zürich: common questions

Which is more reliable, OOPSpam or Passantenfrequenzen Zürich?

On our scheduled checks, Passantenfrequenzen Zürich leads on measured uptime — OOPSpam at —% versus Passantenfrequenzen Zürich 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 OOPSpam and Passantenfrequenzen Zürich need an API key?

Neither needs a paid key — OOPSpam is callable with no signup, and Passantenfrequenzen Zürich is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call OOPSpam and Passantenfrequenzen Zürich from the browser?

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

Are OOPSpam and Passantenfrequenzen Zürich free for commercial use?

OOPSpam has unclear commercial terms, and Passantenfrequenzen Zürich 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.