Postman Echo vs staffSign
Same instrument, two spec sheets — measured, not claimed.
Postman Echo vs staffSign: common questions
Which is more reliable, Postman Echo or staffSign?
On our scheduled checks, staffSign leads on measured uptime — Postman Echo at —% versus staffSign 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 Postman Echo and staffSign need an API key?
Postman Echo needs no key, while staffSign requires a free API key. If you want to start calling without signup, reach for Postman Echo first.
Can I call Postman Echo and staffSign from the browser?
Neither sends browser-friendly CORS headers reliably, so call Postman Echo and staffSign from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.
Are Postman Echo and staffSign free for commercial use?
Postman Echo has unclear commercial terms, and staffSign 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.