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AQICN vs Danish data service Energi

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

APIAQICNREACHABLE—Danish data service EnergiNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSyesno
HTTPSnoyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree — no API key
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

AQICN vs Danish data service Energi: common questions

Which is more reliable, AQICN or Danish data service Energi?

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

Danish data service Energi needs no key, while AQICN requires a free API key. If you want to start calling without signup, reach for Danish data service Energi first.

Can I call AQICN and Danish data service Energi from the browser?

Neither sends browser-friendly CORS headers reliably, so call AQICN and Danish data service Energi from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are AQICN and Danish data service Energi free for commercial use?

AQICN has unclear commercial terms, and Danish data service Energi 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.