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Medium vs Personality.fyi

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

APIMediumNEW—Personality.fyiNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree — no auth
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Medium vs Personality.fyi: common questions

Which is more reliable, Medium or Personality.fyi?

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

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

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

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

Medium 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.