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Genderize.io vs Notion

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

APIGenderize.ioHEALTHY62NotionREACHABLE100
Uptime · 30d
Uptime · 90d41.2%100%
Uptime · 30d36.7%100%
P50 · ms632524
P95 · ms10603096
Authnoneoauth
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierKeyless usage limited (x-rate-limit-limit: 25 observed); 2,500 names/mo with a free keyOAuth — some read routes may be public
Rate limitKeyless cap 25 per x-rate-limit-limit header; remaining/reset exposed in response headersUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Genderize.io vs Notion: common questions

Which is more reliable, Genderize.io or Notion?

On our scheduled checks, Notion leads on measured uptime — Genderize.io at 41.2% versus Notion at 100% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Which is faster, Genderize.io or Notion?

Notion has the lower median latency in our checks — Genderize.io responds in 632 ms versus Notion at 524 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do Genderize.io and Notion 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 Genderize.io and Notion from the browser?

Yes — both Genderize.io and Notion 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 Genderize.io and Notion free for commercial use?

Genderize.io has unclear commercial terms, and Notion 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.