Colormind vs Genius

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

Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms
P95 · ms
AuthnoneapiKey
CORSyesyes
HTTPSnoyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Colormind vs Genius: common questions

Which is more reliable, Colormind or Genius?

On our scheduled checks, Genius leads on measured uptime — Colormind at —% versus Genius 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 Colormind and Genius need an API key?

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

Can I call Colormind and Genius from the browser?

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

Are Colormind and Genius free for commercial use?

Colormind has unclear commercial terms, and Genius 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.