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Meteorologisk Institutt vs Sunrise-Sunset

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

APIMeteorologisk InstituttNEW—Sunrise-SunsetNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useyesunclear
Data licenseCC BY 4.0 / NLOD (Norwegian Licence for Open Government Data)n/a
Free tierFree, no key; requires identifying User-AgentUnlimited, attribution requested
Rate limitThrottled; identify via User-Agent and respect caching headers (per docs)No burst traffic
In directory since2026-07-052026-06-22
operationalpartialdownno data

Meteorologisk Institutt vs Sunrise-Sunset: common questions

Which is more reliable, Meteorologisk Institutt or Sunrise-Sunset?

On our scheduled checks, Sunrise-Sunset leads on measured uptime — Meteorologisk Institutt at —% versus Sunrise-Sunset 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 Meteorologisk Institutt and Sunrise-Sunset need an API key?

Neither needs a paid key — Meteorologisk Institutt is callable with no signup, and Sunrise-Sunset is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Meteorologisk Institutt and Sunrise-Sunset from the browser?

Yes — both Meteorologisk Institutt and Sunrise-Sunset 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 Meteorologisk Institutt and Sunrise-Sunset free for commercial use?

Meteorologisk Institutt allows commercial use on its free tier, and Sunrise-Sunset 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.