Postman Echo vs Vector Express v2.0
Same instrument, two spec sheets — measured, not claimed.
Postman Echo vs Vector Express v2.0: common questions
Which is more reliable, Postman Echo or Vector Express v2.0?
On our scheduled checks, Vector Express v2.0 leads on measured uptime — Postman Echo at —% versus Vector Express v2.0 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 Vector Express v2.0 need an API key?
Neither needs a paid key — Postman Echo is callable with no signup, and Vector Express v2.0 is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call Postman Echo and Vector Express v2.0 from the browser?
Neither sends browser-friendly CORS headers reliably, so call Postman Echo and Vector Express v2.0 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 Vector Express v2.0 free for commercial use?
Postman Echo has unclear commercial terms, and Vector Express v2.0 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.