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7Timer! vs AQICN

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

API7Timer!NEW—AQICNREACHABLE—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSnoyes
HTTPSnono
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

7Timer! vs AQICN: common questions

Which is more reliable, 7Timer! or AQICN?

On our scheduled checks, AQICN leads on measured uptime — 7Timer! at —% versus AQICN 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 7Timer! and AQICN need an API key?

7Timer! needs no key, while AQICN requires a free API key. If you want to start calling without signup, reach for 7Timer! first.

Can I call 7Timer! and AQICN from the browser?

Neither sends browser-friendly CORS headers reliably, so call 7Timer! and AQICN from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are 7Timer! and AQICN free for commercial use?

7Timer! has unclear commercial terms, and AQICN 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.