AviationWeather vs Glax Weather API
Same instrument, two spec sheets — measured, not claimed.
AviationWeather vs Glax Weather API: common questions
Which is more reliable, AviationWeather or Glax Weather API?
On our scheduled checks, Glax Weather API leads on measured uptime — AviationWeather at 93.1% versus Glax Weather API 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, AviationWeather or Glax Weather API?
AviationWeather has the lower median latency in our checks — AviationWeather responds in 450 ms versus Glax Weather API at 1004 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 AviationWeather and Glax Weather API need an API key?
Neither needs a paid key — AviationWeather is callable with no signup, and Glax Weather API is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call AviationWeather and Glax Weather API from the browser?
Neither sends browser-friendly CORS headers reliably, so call AviationWeather and Glax Weather API from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.
Are AviationWeather and Glax Weather API free for commercial use?
AviationWeather allows commercial use on its free tier, and Glax Weather API 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.