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ColorfulClouds vs DFlight API

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

APIColorfulCloudsREACHABLE—DFlight APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSnoyes
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 DFlight API: common questions

Which is more reliable, ColorfulClouds or DFlight API?

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

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

Can I call ColorfulClouds and DFlight API from the browser?

Only DFlight API is browser-friendly — it returns CORS headers over HTTPS. ColorfulClouds needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are ColorfulClouds and DFlight API free for commercial use?

ColorfulClouds has unclear commercial terms, and DFlight 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.