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Notion vs Genderize.io

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

APINotionON SCHEDULE—Genderize.ioNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authoauthnone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierOAuth — some read routes may be publicKeyless usage limited (x-rate-limit-limit: 25 observed); 2,500 names/mo with a free key
Rate limitUnpublishedKeyless cap 25 per x-rate-limit-limit header; remaining/reset exposed in response headers
In directory since2026-07-052026-07-05
operationalpartialdownno data

Notion vs Genderize.io: common questions

Which is more reliable, Notion or Genderize.io?

Only Genderize.io is on our probe schedule so far (—% uptime over 90 days). The other is catalogued but not yet live-checked, so we can't compare measured reliability head-to-head — check the uncovered API's own status page for now.

Do Notion and Genderize.io need an API key?

Genderize.io needs no key, while Notion requires OAuth. If you want to start calling without signup, reach for Genderize.io first.

Can I call Notion and Genderize.io from the browser?

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

Are Notion and Genderize.io free for commercial use?

Notion has unclear commercial terms, and Genderize.io 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.