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Render API vs Genderize.io

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

APIRender APIUNMONITORED—Genderize.ioNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredKeyless 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

Render API vs Genderize.io: common questions

Which is more reliable, Render API 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 Render API and Genderize.io need an API key?

Genderize.io needs no key, while Render API requires a free API key. If you want to start calling without signup, reach for Genderize.io first.

Can I call Render API and Genderize.io from the browser?

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

Are Render API and Genderize.io free for commercial use?

Render API 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.