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ColorfulClouds vs Glax Weather API

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

APIColorfulCloudsREACHABLE—Glax Weather APINEW—
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

ColorfulClouds vs Glax Weather API: common questions

Which is more reliable, ColorfulClouds or Glax Weather API?

On our scheduled checks, Glax Weather API leads on measured uptime — ColorfulClouds at —% versus Glax Weather API 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 ColorfulClouds and Glax Weather API need an API key?

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

Can I call ColorfulClouds and Glax Weather API from the browser?

Neither sends browser-friendly CORS headers reliably, so call ColorfulClouds 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 ColorfulClouds and Glax Weather API free for commercial use?

ColorfulClouds has unclear commercial terms, 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.