National Grid ESO

Great Britain's electricity system operator open data, CKAN-style

🌦 WeatherHEALTHYchecked 10h ago
AUTH NONECORS AGENT HTTPS COMMERCIAL ?

The operator formerly known as National Grid ESO (now NESO) publishes Britain's grid data through a standard CKAN API. List every dataset with a single keyless GET, then drill into wind forecasts, demand, carbon intensity and more. No key, no signup.

92HOW IT'S SCORED ⓘ
Status badge · for your READMEshipapis health badge: 92 · healthy
Uptime history
100%90 days
100%30 days
609P50 · ms
1311P95 · ms
operationalpartialdownno data
Response time · last 48 checks
Fastest 42 ms, slowest 1225 ms, most recent 52 ms.
Live response samplecaptured by our last successful check
GET https://api.neso.energy/api/3/action/package_list

{
  "help": "https://api.neso.energy/api/3/action/help_show?name=package_list",
  "success": true,
  "result": [
    "14-days-ahead-operational-metered-wind-forecasts",
    "14-days-ahead-wind-forecasts"
  ]
}
Call itcurl · fetch · python
curl "https://api.neso.energy/api/3/action/package_list"
const res = await fetch("https://api.neso.energy/api/3/action/package_list");
const data = await res.json();
console.log(data);
import requests

res = requests.get("https://api.neso.energy/api/3/action/package_list")
print(res.json())
Endpoints · 5HealthyFULL DOCS ↗
Monitored path responding — GET /action/package_list609 mschecked 10h ago
GET/action/package_listPROBED

Great Britain's electricity system operator open data, CKAN-style

GET/action

Action — documented GET route.

GET/action/1

Action details by ID (example: 1).

GET/action?limit=10

Action — documented GET route.

GET/action/search?q=test

Search by query parameters.

Machine-readable spec

We probe a documented GET and expect 2xx JSON — full uptime and health score. Export includes every documented route below.

Response-shape history

Stable. No schema drift observed since monitoring began — the response shape has not changed under our checks.

National Grid ESO: common questions

Is National Grid ESO free to use?

Yes — National Grid ESO is a free weather API. Free tier: Free — limits not published. Whether the free tier allows commercial use is unclear — check the provider docs.

Does National Grid ESO need an API key?

No — National Grid ESO needs no API key or signup. You can call it straight away; rate limits still apply (Unpublished).

Can I call National Grid ESO from the browser?

Yes — National Grid ESO returns CORS headers over HTTPS, so front-end code can fetch it directly with no backend proxy. Use the fetch snippet on this page, or hit "Run live" to try it now.

Is National Grid ESO up right now?

As of our last scheduled check, National Grid ESO is healthy with 100% uptime over 90 days and a 609 ms median response. We re-probe it every sweep — the status badge and uptime chart above always show the latest.