curl --request GET \
  --url https://crxbase.com/api/{project_id}/user

{
  "success": true,
  "data": {
    "email": "<string>",
    "paid": true,
    "plans": [
      {
        "id": "<string>",
        "name": "<string>",
        "price": 123,
        "credits": 123,
        "description": "<string>",
        "billing_cycle": "once",
        "status": "<string>",
        "paid_at": "<string>",
        "canceled_at": "<string>"
      }
    ],
    "credits_left": 123
  }
}