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Atlas Academy vs Deck of Cards

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

APIAtlas AcademyNEW—Deck of CardsNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
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

Atlas Academy vs Deck of Cards: common questions

Which is more reliable, Atlas Academy or Deck of Cards?

On our scheduled checks, Deck of Cards leads on measured uptime — Atlas Academy at —% versus Deck of Cards 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 Atlas Academy and Deck of Cards need an API key?

Neither needs a paid key — Atlas Academy is callable with no signup, and Deck of Cards is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Atlas Academy and Deck of Cards from the browser?

Yes — both Atlas Academy and Deck of Cards 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 Atlas Academy and Deck of Cards free for commercial use?

Atlas Academy has unclear commercial terms, and Deck of Cards 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.