Piloterr vs Pythonium

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

Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms635855
P95 · ms17301794
AuthapiKeynone
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Piloterr vs Pythonium: common questions

Which is more reliable, Piloterr or Pythonium?

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

Piloterr has the lower median latency in our checks — Piloterr responds in 635 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 Piloterr and Pythonium need an API key?

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

Can I call Piloterr and Pythonium from the browser?

Neither sends browser-friendly CORS headers reliably, so call Piloterr and Pythonium from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are Piloterr and Pythonium free for commercial use?

Piloterr 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.