curl --request GET \
  --url https://neo.api.projectdiscovery.io/api/v1/billing/credits \
  --header 'Authorization: Bearer <token>'

{
  "available_credits": 123,
  "issued_credits": 123,
  "used_credits": 123,
  "expires_at": "2023-11-07T05:31:56Z",
  "has_payment_method": true,
  "has_purchased": true,
  "is_expired": true,
  "last_purchase_at": "2023-11-07T05:31:56Z",
  "last_purchase_credits": 123,
  "payment_methods": [
    {
      "brand": "<string>",
      "exp_month": 123,
      "exp_year": 123,
      "id": "<string>",
      "is_default": true,
      "last4": "<string>"
    }
  ]
}