Adoptium vs OpenQR
Same instrument, two spec sheets — measured, not claimed.
Adoptium vs OpenQR: common questions
Which is more reliable, Adoptium or OpenQR?
Both are neck-and-neck — Adoptium and OpenQR each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.
Which is faster, Adoptium or OpenQR?
Adoptium has the lower median latency in our checks — Adoptium responds in 476 ms versus OpenQR at 1125 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.
Do Adoptium and OpenQR need an API key?
Adoptium needs no key, while OpenQR requires a free API key. If you want to start calling without signup, reach for Adoptium first.
Can I call Adoptium and OpenQR from the browser?
Yes — both Adoptium and OpenQR 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 OpenQR free for commercial use?
Adoptium has unclear commercial terms, and OpenQR 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.