httpSMS vs QuickChart
Same instrument, two spec sheets — measured, not claimed.
httpSMS vs QuickChart: common questions
Which is more reliable, httpSMS or QuickChart?
On our scheduled checks, QuickChart leads on measured uptime — httpSMS at —% versus QuickChart 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 QuickChart need an API key?
QuickChart needs no key, while httpSMS requires a free API key. If you want to start calling without signup, reach for QuickChart first.
Can I call httpSMS and QuickChart from the browser?
Only httpSMS is browser-friendly — it returns CORS headers over HTTPS. QuickChart needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are httpSMS and QuickChart free for commercial use?
httpSMS has unclear commercial terms, and QuickChart 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.