Is National Grid ESO API down?
Current status, daily uptime history and troubleshooting for the National Grid ESO API (Environment).
Possibly: National Grid ESO's last check failed
Our latest daily check of National Grid ESO (Oct 24, 2026, 12:25 UTC) failed: its domain name doesn't resolve. One failure can be a blip; the live check below tells you whether it's still failing.
Checking National Grid ESO now…
Sending a request from our server.
National Grid ESO API uptime history
- Uptime
- 2 checks so far
- Last check
- Oct 24, 2026, 12:25 UTC
- Response
- Its domain name doesn't resolve
- Last up
- Not seen up yet
We check National Grid ESO's listed URL (https://data.nationalgrideso.com/) once a day. History started when National Grid ESO was first checked, so new entries show fewer than 30 days.
National Grid ESO API not working for you?
- A 429 response means you're being rate-limited. Slow down, cache responses, and respect any Retry-After header.
- If calls fail only in the browser with a CORS error, National Grid ESO may not allow cross-origin requests. Call it from your server instead.
- If it works from one network but not another, check firewalls, VPNs and regional blocks.
- Check the provider's documentation, status page or social accounts for planned maintenance or a changed endpoint.
Environment APIs up at their last check
- 1
kanari API
Online · 527 msReal-time worldwide wildfire detections, water bomber tracking and open fire archive.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 2
Open-Meteo API
Online · 609 msFree weather API for non-commercial use.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 3
Sähkön hinta nyt API
Online · 1106 msFinnish and Nordic day-ahead electricity spot prices (15-minute), cheapest hours.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 4
WattFigure API
Online · 712 msUS electricity rates by state, with appliance and EV charging running costs.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 5
GridVigil API
Online · 1588 msPressure scores, demand, generation mix and alerts for the 10 major U.S. power grids.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
Compare all National Grid ESO alternatives · APIs down right now
National Grid ESO API status FAQ
Is National Grid ESO API down right now?
Our latest daily check of National Grid ESO (Oct 24, 2026, 12:25 UTC) failed: its domain name doesn't resolve. One failure can be a blip; the live check below tells you whether it's still failing. This page also runs a live check from our server when you open it, so you can see whether National Grid ESO is responding at this moment.
How do you check whether National Grid ESO API is up?
Once a day our checker requests National Grid ESO's listed URL (https://data.nationalgrideso.com/) and records whether it answers within 15 seconds. Answers like 401 (needs a key), 403 (blocks bots) or 429 (rate-limited) count as up, because the server responded. The listed URL is often the documentation page, so an API endpoint can occasionally fail while its docs stay up.
What can I use if National Grid ESO API is down?
Free Environment APIs that were up at their last check include kanari, Open-Meteo, Sähkön hinta nyt. See the full list of National Grid ESO alternatives for a comparison.
Why does National Grid ESO API work for others but not for me?
A 429 response means you're being rate-limited. Slow down, cache responses, and respect any Retry-After header. If calls fail only in the browser with a CORS error, National Grid ESO may not allow cross-origin requests. Call it from your server instead. If it works from one network but not another, check firewalls, VPNs and regional blocks.