Affirmations.dev vs Sentino Personality API

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

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

Affirmations.dev vs Sentino Personality API: common questions

Which is more reliable, Affirmations.dev or Sentino Personality API?

On our scheduled checks, Sentino Personality API leads on measured uptime — Affirmations.dev at —% versus Sentino Personality 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 Affirmations.dev and Sentino Personality API need an API key?

Affirmations.dev needs no key, while Sentino Personality API requires a free API key. If you want to start calling without signup, reach for Affirmations.dev first.

Can I call Affirmations.dev and Sentino Personality API from the browser?

Neither sends browser-friendly CORS headers reliably, so call Affirmations.dev and Sentino Personality API from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are Affirmations.dev and Sentino Personality API free for commercial use?

Affirmations.dev has unclear commercial terms, and Sentino Personality 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.