OpenQR vs Pythonium

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

Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms1125855
P95 · ms28511794
AuthapiKeynone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — key may be requiredFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

OpenQR vs Pythonium: common questions

Which is more reliable, OpenQR or Pythonium?

Both are neck-and-neck — OpenQR and Pythonium 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, OpenQR or Pythonium?

Pythonium has the lower median latency in our checks — OpenQR responds in 1125 ms versus Pythonium at 855 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 OpenQR and Pythonium need an API key?

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

Can I call OpenQR and Pythonium from the browser?

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

Are OpenQR and Pythonium free for commercial use?

OpenQR has unclear commercial terms, and Pythonium 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.