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Dog CEO vs Extinct Animals API

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

APIDog CEOHEALTHY—Extinct Animals APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useyesunclear
Data licenseStanford Dogs datasetUnverified
Free tierUnlimitedFree — limits not published
Rate limitNone published100 req/window · 99 remaining · resets 1783518309
In directory since2026-05-022026-07-05
operationalpartialdownno data

Dog CEO vs Extinct Animals API: common questions

Which is more reliable, Dog CEO or Extinct Animals API?

On our scheduled checks, Extinct Animals API leads on measured uptime — Dog CEO at —% versus Extinct Animals API 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 Dog CEO and Extinct Animals API need an API key?

Neither needs a paid key — Dog CEO is callable with no signup, and Extinct Animals API is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Dog CEO and Extinct Animals API from the browser?

Yes — both Dog CEO and Extinct Animals API 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 Dog CEO and Extinct Animals API free for commercial use?

Dog CEO allows commercial use on its free tier, and Extinct Animals API 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.