FastApi Simple Calculator vs Httpbin

Same instrument, two spec sheets — measured, not claimed.

Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms
P95 · ms
Authnonenone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

FastApi Simple Calculator vs Httpbin: common questions

Which is more reliable, FastApi Simple Calculator or Httpbin?

On our scheduled checks, Httpbin leads on measured uptime — FastApi Simple Calculator at —% versus Httpbin 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 FastApi Simple Calculator and Httpbin need an API key?

Neither needs a paid key — FastApi Simple Calculator is callable with no signup, and Httpbin is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call FastApi Simple Calculator and Httpbin from the browser?

Only Httpbin is browser-friendly — it returns CORS headers over HTTPS. FastApi Simple Calculator needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are FastApi Simple Calculator and Httpbin free for commercial use?

FastApi Simple Calculator has unclear commercial terms, and Httpbin 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.