Kroki vs Postman Echo
Same instrument, two spec sheets — measured, not claimed.
Kroki vs Postman Echo: common questions
Which is more reliable, Kroki or Postman Echo?
On our scheduled checks, Postman Echo leads on measured uptime — Kroki 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 Kroki and Postman Echo need an API key?
Neither needs a paid key — Kroki 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 Kroki and Postman Echo from the browser?
Only Kroki 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 Kroki and Postman Echo free for commercial use?
Kroki 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.