M
API Matrix

National Grid ESO API

Environment / No Auth Required Beginner HTTPS
Free to Use Varies (check documentation)
0 Score
Grade F
Visit Official Site Compare Alternatives

Overview

National Grid ESO provides programmatic access to open data from great britain’s electricity system operator via REST API. This Environment API enables developers to integrate open data from great britain’s electricity system operator into applications, dashboards, and automated workflows. Check the official documentation for endpoint details, authentication requirements, and rate limits.

Available Data

country name and code
population
capital city
region and subregion
flag image URL
Response fields: nationalgrideso com

Example Response

JSON Response 
{
  "name": "Japan",
  "capital": "Tokyo",
  "population": 125800000,
  "region": "Asia",
  "languages": [
    "Japanese"
  ],
  "flag": "https://flagcdn.com/jp.svg",
  "currencies": [
    {
      "code": "JPY",
      "name": "Japanese yen"
    }
  ]
}

Implementation Example 

const url = "https://data.nationalgrideso.com/";
const response = await fetch(url);
if (!response.ok) throw new Error(`Request failed: ${response.status}`);
const data = await response.json();
console.log(data);

What Can You Build?

Note: These code examples are AI-generated and unverified. Always refer to the official API documentation for accurate usage.

Matrix Score Breakdown

🌐 Reachability 0/30
⚡ Speed 0/20
🔒 Security 0/15
🛠 Developer XP 0/20
✓ Reliability 0/15
Response Time 356ms

Fully tested on Apr 5, 2026

Technical Specifications

Auth No Auth
HTTPS REQUIRED
CORS UNKNOWN
Category Environment
Difficulty Beginner
Verified: 2026-04-07

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