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InternetDB API vs Genderize.io

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

APIInternetDB APIUNMONITORED—Genderize.ioNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedKeyless 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

InternetDB API vs Genderize.io: common questions

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

Neither needs a paid key — InternetDB API is callable with no signup, and Genderize.io is callable with no signup. Both are quick to prototype with; rate limits still apply.

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

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

InternetDB 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.