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Danish data service Energi vs Free UV Index API

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

APIDanish data service EnergiNEW—Free UV Index APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — no API keyFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Danish data service Energi vs Free UV Index API: common questions

Which is more reliable, Danish data service Energi or Free UV Index API?

On our scheduled checks, Free UV Index API leads on measured uptime — Danish data service Energi at —% versus Free UV Index 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 Danish data service Energi and Free UV Index API need an API key?

Neither needs a paid key — Danish data service Energi is callable with no signup, and Free UV Index API is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Danish data service Energi and Free UV Index API from the browser?

Only Free UV Index API is browser-friendly — it returns CORS headers over HTTPS. Danish data service Energi needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Danish data service Energi and Free UV Index API free for commercial use?

Danish data service Energi has unclear commercial terms, and Free UV Index 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.