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GET /v1/intensity

National carbon intensity now

Try it live

10 free calls per day — no sign-up, no API key. Goes through the oanor gateway.

Custom headers (optional)
api.oanor.com/carbonintensity-api

It works. Grab an API key and use it in your project.

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Code snippets

curl "https://api.oanor.com/carbonintensity-api/v1/intensity" \
  -H "x-oanor-key: oanor_test_..."
await fetch("https://api.oanor.com/carbonintensity-api/v1/intensity", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
$ch = curl_init("https://api.oanor.com/carbonintensity-api/v1/intensity");
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$out = curl_exec($ch);
import requests
requests.get(
    "https://api.oanor.com/carbonintensity-api/v1/intensity",
    headers={"x-oanor-key": "oanor_test_..."}
)

Example response

A real response from this endpoint, captured by the latest health check.

{
    "data": {
        "to": "2026-06-01T00:00Z",
        "from": "2026-05-31T23:30Z",
        "unit": "gCO2/kWh",
        "index": "high",
        "actual": null,
        "forecast": 183
    },
    "meta": {
        "timestamp": "2026-06-01T00:03:37.638Z",
        "request_id": "19ffffca-12b1-437b-9dca-84e74c0473a3"
    },
    "status": "ok",
    "message": "Intensity retrieved",
    "success": true
}