curl https://api.neuraldraft.io/v1/product-categories \
  -H "Authorization: Bearer ndsk_live_yourkey"

{
  "data": [
    {
      "id": 4,
      "name": "Studio essentials",
      "slug": "studio-essentials",
      "parent_id": null,
      "is_active": true,
      "children": [
        {
          "id": 5,
          "name": "Blocks",
          "slug": "blocks",
          "parent_id": 4,
          "is_active": true
        },
        {
          "id": 6,
          "name": "Mats",
          "slug": "mats",
          "parent_id": 4,
          "is_active": true
        }
      ]
    }
  ]
}