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7Timer! vs AviationWeather

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

API7Timer!NEW—AviationWeatherNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSnono
HTTPSnoyes
Card requirednono
Commercial useunclearyes
Data licenseUnverifiedPublic domain (U.S. Government / NOAA)
Free tierFree — limits not publishedFree, no key
Rate limitUnpublishedUnpublished (NWS requests reasonable use)
In directory since2026-07-052026-07-05
operationalpartialdownno data

7Timer! vs AviationWeather: common questions

Which is more reliable, 7Timer! or AviationWeather?

On our scheduled checks, AviationWeather leads on measured uptime — 7Timer! at —% versus AviationWeather 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 7Timer! and AviationWeather need an API key?

Neither needs a paid key — 7Timer! is callable with no signup, and AviationWeather is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call 7Timer! and AviationWeather from the browser?

Neither sends browser-friendly CORS headers reliably, so call 7Timer! and AviationWeather from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are 7Timer! and AviationWeather free for commercial use?

7Timer! has unclear commercial terms, and AviationWeather allows commercial use on its free tier. 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.