curl --request POST \
  --url https://fees.sandbox.lerian.net/v1/billing-packages \
  --header 'Content-Type: <content-type>' \
  --header 'X-Organization-Id: <x-organization-id>' \
  --data '
{
  "label": "Pix Send Monthly Billing",
  "description": "Monthly volume billing for Pix transactions",
  "ledgerId": "ldg_01HZ...",
  "type": "volume",
  "enable": true,
  "eventFilter": {
    "transactionRoute": "pix-send",
    "status": "APPROVED"
  },
  "pricingModel": "tiered",
  "tiers": [
    {
      "minQuantity": 1,
      "maxQuantity": 100,
      "unitPrice": "0.50"
    },
    {
      "minQuantity": 101,
      "maxQuantity": 500,
      "unitPrice": "0.35"
    },
    {
      "minQuantity": 501,
      "maxQuantity": null,
      "unitPrice": "0.20"
    }
  ],
  "freeQuota": 10,
  "discountTiers": [
    {
      "minQuantity": 200,
      "discountPercentage": "5.00"
    },
    {
      "minQuantity": 400,
      "discountPercentage": "10.00"
    }
  ],
  "countMode": "perAccount",
  "assetCode": "BRL",
  "debitAccountAlias": "client-wallet",
  "creditAccountAlias": "fees-revenue"
}
'

{
  "id": "bpkg_01HZ...",
  "label": "Pix Send Monthly Billing",
  "type": "volume",
  "enable": true,
  "organizationId": "org_01HZ...",
  "ledgerId": "ldg_01HZ...",
  "createdAt": "2026-03-01T00:00:00Z",
  "updatedAt": "2026-03-01T00:00:00Z"
}