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Adoptium vs GitHub REST API

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

APIAdoptiumNEW—GitHub REST APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Adoptium vs GitHub REST API: common questions

Which is more reliable, Adoptium or GitHub REST API?

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

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

Can I call Adoptium and GitHub REST API from the browser?

Yes — both Adoptium and GitHub REST API 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 GitHub REST API free for commercial use?

Adoptium has unclear commercial terms, and GitHub REST API 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.