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Personality.fyi vs Agify

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

APIPersonality.fyiNEW—AgifyHEALTHY—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearyes
Data licenseUnverifiedProprietary
Free tierFree — no auth100 names/day, no signup
Rate limitUnpublished100/day per IP
In directory since2026-07-052026-05-02
operationalpartialdownno data

Personality.fyi vs Agify: common questions

Which is more reliable, Personality.fyi or Agify?

On our scheduled checks, Agify leads on measured uptime — Personality.fyi at —% versus Agify 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 Agify need an API key?

Neither needs a paid key — Personality.fyi is callable with no signup, and Agify is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Personality.fyi and Agify from the browser?

Yes — both Personality.fyi and Agify 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 Personality.fyi and Agify free for commercial use?

Personality.fyi has unclear commercial terms, and Agify allows commercial use on its free tier. 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.