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Deezer vs Genius

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

APIDeezerNEW—GeniusNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSnoyes
HTTPSyesyes
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

Deezer vs Genius: common questions

Which is more reliable, Deezer or Genius?

On our scheduled checks, Genius leads on measured uptime — Deezer 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 Deezer and Genius need an API key?

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

Can I call Deezer and Genius from the browser?

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

Are Deezer and Genius free for commercial use?

Deezer 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.