curl --request GET \
  --url https://api.engrate.io/core/v1/geo \
  --header 'Authorization: <api-key>'

{
  "features": [
    {
      "geometry": {
        "coordinates": [
          [
            [
              [
                18.07,
                59.33
              ],
              [
                18.08,
                59.33
              ],
              [
                18.08,
                59.34
              ],
              [
                18.07,
                59.33
              ]
            ]
          ]
        ],
        "type": "MultiPolygon"
      },
      "id": "0199c317-25ec-7c00-b1a0-a1b2c3d4e5f6",
      "properties": {
        "extra_ids": [
          {
            "kind": "eic",
            "value": "46Y000000000016G"
          },
          {
            "kind": "se.mga_code",
            "value": "STO"
          }
        ],
        "geometry_granularity": "mga",
        "id": "0199c317-25ec-7c00-b1a0-a1b2c3d4e5f6",
        "name": "Stockholm",
        "scheduling_area_eic": "10Y1001A1001A47J",
        "system_operator": {
          "extra_ids": [
            {
              "kind": "eic",
              "value": "46X000000000245K"
            }
          ],
          "id": "0199c317-25ec-7cf7-94cc-32a39f068433"
        },
        "type": "metering-grid-area"
      },
      "type": "Feature"
    }
  ],
  "type": "FeatureCollection"
}