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Climate FieldView Platform APIs vs National Grid ESO

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

APIClimate FieldView Platform APIsNEW—National Grid ESONEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedNESO Open Data Licence (OGL-based); varies per dataset
Free tierFree tier — API key requiredFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Climate FieldView Platform APIs vs National Grid ESO: common questions

Which is more reliable, Climate FieldView Platform APIs or National Grid ESO?

On our scheduled checks, National Grid ESO leads on measured uptime — Climate FieldView Platform APIs 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 Climate FieldView Platform APIs and National Grid ESO need an API key?

National Grid ESO needs no key, while Climate FieldView Platform APIs requires a free API key. If you want to start calling without signup, reach for National Grid ESO first.

Can I call Climate FieldView Platform APIs and National Grid ESO from the browser?

Only National Grid ESO is browser-friendly — it returns CORS headers over HTTPS. Climate FieldView Platform APIs needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Climate FieldView Platform APIs and National Grid ESO free for commercial use?

Climate FieldView Platform APIs has unclear commercial terms, 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.