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Personality.fyi vs Sentino Personality API

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

APIPersonality.fyiNEW—Sentino Personality APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — no authFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Personality.fyi vs Sentino Personality API: common questions

Which is more reliable, Personality.fyi or Sentino Personality API?

On our scheduled checks, Sentino Personality API leads on measured uptime — Personality.fyi 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 Personality.fyi and Sentino Personality API need an API key?

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

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

Only Personality.fyi is browser-friendly — it returns CORS headers over HTTPS. Sentino Personality API needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Personality.fyi and Sentino Personality API free for commercial use?

Personality.fyi 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.