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Piloterr vs QuickChart

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

APIPiloterrNEW—QuickChartNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
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 QuickChart: common questions

Which is more reliable, Piloterr or QuickChart?

On our scheduled checks, QuickChart leads on measured uptime — Piloterr at —% versus QuickChart 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 Piloterr and QuickChart need an API key?

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

Can I call Piloterr and QuickChart from the browser?

Neither sends browser-friendly CORS headers reliably, so call Piloterr and QuickChart 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 QuickChart free for commercial use?

Piloterr has unclear commercial terms, and QuickChart 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.