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Excuser vs Personality.fyi

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

APIExcuserNEW—Personality.fyiNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — no auth
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Excuser vs Personality.fyi: common questions

Which is more reliable, Excuser or Personality.fyi?

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

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

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

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

Excuser has unclear commercial terms, and Personality.fyi 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.