ddownload vs FastApi Simple Calculator

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

Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms
P95 · ms
AuthapiKeynone
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

ddownload vs FastApi Simple Calculator: common questions

Which is more reliable, ddownload or FastApi Simple Calculator?

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

FastApi Simple Calculator needs no key, while ddownload requires a free API key. If you want to start calling without signup, reach for FastApi Simple Calculator first.

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

Neither sends browser-friendly CORS headers reliably, so call ddownload and FastApi Simple Calculator from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are ddownload and FastApi Simple Calculator free for commercial use?

ddownload has unclear commercial terms, and FastApi Simple Calculator 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.