curl --request GET \
  --url https://api.headlesscommerce.io/v1/admin/customers \
  --header 'Authorization: Bearer <token>'

{
  "data": [
    {
      "id": "<string>",
      "email": "<string>",
      "first_name": "<string>",
      "last_name": "<string>",
      "phone": "<string>",
      "external_id": "<string>",
      "status": "active",
      "total_orders": 123,
      "total_spent": {
        "amount": 123,
        "currency": "<string>"
      },
      "tags": [
        "<string>"
      ],
      "addresses": [
        {
          "name": "<string>",
          "company": "<string>",
          "line1": "<string>",
          "line2": "<string>",
          "city": "<string>",
          "state": "<string>",
          "postal_code": "<string>",
          "country": "<string>",
          "phone": "<string>"
        }
      ],
      "metadata": {},
      "created_at": "2023-11-07T05:31:56Z"
    }
  ],
  "total_count": 123,
  "has_more": true,
  "next_cursor": "<string>"
}