httpSMS vs Kroki
Same instrument, two spec sheets — measured, not claimed.
httpSMS vs Kroki: common questions
Which is more reliable, httpSMS or Kroki?
On our scheduled checks, Kroki leads on measured uptime — httpSMS at —% versus Kroki 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 httpSMS and Kroki need an API key?
Kroki needs no key, while httpSMS requires a free API key. If you want to start calling without signup, reach for Kroki first.
Can I call httpSMS and Kroki from the browser?
Yes — both httpSMS and Kroki send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.
Are httpSMS and Kroki free for commercial use?
httpSMS has unclear commercial terms, and Kroki 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.