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Meteorologisk Institutt vs National Grid ESO

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

APIMeteorologisk InstituttNEW—National Grid ESONEW—
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)NESO Open Data Licence (OGL-based); varies per dataset
Free tierFree, no key; requires identifying User-AgentFree — limits not published
Rate limitThrottled; identify via User-Agent and respect caching headers (per docs)Unpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Meteorologisk Institutt vs National Grid ESO: common questions

Which is more reliable, Meteorologisk Institutt or National Grid ESO?

On our scheduled checks, National Grid ESO leads on measured uptime — Meteorologisk Institutt at —% versus National Grid ESO 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 National Grid ESO need an API key?

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

Can I call Meteorologisk Institutt and National Grid ESO from the browser?

Yes — both Meteorologisk Institutt and National Grid ESO 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 National Grid ESO free for commercial use?

Meteorologisk Institutt allows commercial use on its free tier, and National Grid ESO 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.