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QuickChart vs WakaTime

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

APIQuickChartNEW—WakaTimeNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree public endpoints; personal data needs API key/OAuth
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

QuickChart vs WakaTime: common questions

Which is more reliable, QuickChart or WakaTime?

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

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

Can I call QuickChart and WakaTime from the browser?

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

Are QuickChart and WakaTime free for commercial use?

QuickChart has unclear commercial terms, and WakaTime 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.