curl --request GET \
  --url https://api.engrate.io/v1/cost-of-energy/v1/datasets \
  --header 'Authorization: <api-key>'

{
  "datasets": [
    {
      "id": "quarter-hourly-energy-offtake",
      "resolution": "quarter_hourly",
      "unit": "kWh"
    },
    {
      "id": "quarter-hourly-energy-injection",
      "resolution": "quarter_hourly",
      "unit": "kWh"
    },
    {
      "id": "yearly-firm-subscribed-offtake-capacity",
      "resolution": "yearly",
      "unit": "kW"
    },
    {
      "id": "quarter-hourly-day-ahead-price-se3",
      "resolution": "quarter_hourly",
      "unit": "SEK_per_kWh"
    }
  ]
}