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Adoptium vs Supadata

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

APIAdoptiumNEW—SupadataNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesyes
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

Adoptium vs Supadata: common questions

Which is more reliable, Adoptium or Supadata?

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

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

Can I call Adoptium and Supadata from the browser?

Yes — both Adoptium and Supadata 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 Adoptium and Supadata free for commercial use?

Adoptium has unclear commercial terms, and Supadata 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.