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Luchtmeetnet vs Weather Underground API

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

APILuchtmeetnetNEW—Weather Underground APIREACHABLE—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — no API keyFree tier — API key may be required for production
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Luchtmeetnet vs Weather Underground API: common questions

Which is more reliable, Luchtmeetnet or Weather Underground API?

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

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

Can I call Luchtmeetnet and Weather Underground API from the browser?

Yes — both Luchtmeetnet and Weather Underground API send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are Luchtmeetnet and Weather Underground API free for commercial use?

Luchtmeetnet has unclear commercial terms, and Weather Underground 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.