Keyvalue vs Pythonium

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

Uptime · 30d
Uptime · 90d86.3%100%
Uptime · 30d80.0%100%
P50 · ms855855
P95 · ms20511794
Authnonenone
CORSyesno
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

Keyvalue vs Pythonium: common questions

Which is more reliable, Keyvalue or Pythonium?

On our scheduled checks, Pythonium leads on measured uptime — Keyvalue at 86.3% versus Pythonium at 100% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Which is faster, Keyvalue or Pythonium?

They're evenly matched on speed — both Keyvalue and Pythonium post a 855 ms median (P50) in our checks. Look at the P95 row above if worst-case latency matters more than the typical response for your use case.

Do Keyvalue and Pythonium need an API key?

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

Can I call Keyvalue and Pythonium from the browser?

Only Keyvalue 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 Keyvalue and Pythonium free for commercial use?

Keyvalue 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.