Passantenfrequenzen Zürich vs Postman Echo
Same instrument, two spec sheets — measured, not claimed.
Passantenfrequenzen Zürich vs Postman Echo: common questions
Which is more reliable, Passantenfrequenzen Zürich or Postman Echo?
On our scheduled checks, Postman Echo leads on measured uptime — Passantenfrequenzen Zürich at —% versus Postman Echo 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 Passantenfrequenzen Zürich and Postman Echo need an API key?
Neither needs a paid key — Passantenfrequenzen Zürich is callable with no signup, and Postman Echo is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call Passantenfrequenzen Zürich and Postman Echo from the browser?
Only Passantenfrequenzen Zürich is browser-friendly — it returns CORS headers over HTTPS. Postman Echo needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are Passantenfrequenzen Zürich and Postman Echo free for commercial use?
Passantenfrequenzen Zürich has unclear commercial terms, and Postman Echo 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.