curl --request GET \
  --url https://api.withorb.com/v1/subscriptions/{subscription_id}/costs \
  --header 'Authorization: Bearer <token>'

{
  "data": [
    {
      "subtotal": "<string>",
      "total": "<string>",
      "timeframe_start": "2023-11-07T05:31:56Z",
      "timeframe_end": "2023-11-07T05:31:56Z",
      "per_price_costs": [
        {
          "quantity": 123,
          "subtotal": "<string>",
          "total": "<string>",
          "price": {
            "model_type": "unit",
            "unit_config": {
              "unit_amount": "<string>"
            },
            "metadata": {},
            "id": "<string>",
            "name": "<string>",
            "external_price_id": "<string>",
            "replaces_price_id": "<string>",
            "price_type": "usage_price",
            "created_at": "2023-11-07T05:31:56Z",
            "cadence": "one_time",
            "billing_mode": "in_advance",
            "billing_cycle_configuration": {
              "duration": 123,
              "duration_unit": "day"
            },
            "invoicing_cycle_configuration": {
              "duration": 123,
              "duration_unit": "day"
            },
            "billable_metric": {
              "id": "<string>"
            },
            "dimensional_price_configuration": {
              "dimensional_price_group_id": "<string>",
              "dimension_values": [
                "<any>"
              ]
            },
            "fixed_price_quantity": 123,
            "plan_phase_order": 123,
            "currency": "<string>",
            "conversion_rate": 123,
            "conversion_rate_config": {
              "conversion_rate_type": "unit",
              "unit_config": {}
            },
            "item": {
              "id": "<string>",
              "name": "<string>"
            },
            "credit_allocation": {
              "currency": "<string>",
              "allows_rollover": true,
              "custom_expiration": {
                "duration": "<any>",
                "duration_unit": "<any>"
              }
            },
            "composite_price_filters": [
              {
                "field": "<any>",
                "operator": "<any>",
                "values": "<any>"
              }
            ],
            "discount": {
              "discount_type": "percentage",
              "applies_to_price_ids": [
                "h74gfhdjvn7ujokd",
                "7hfgtgjnbvc3ujkl"
              ],
              "filters": [
                "<any>"
              ],
              "reason": "<string>",
              "percentage_discount": 0.15
            },
            "minimum": {
              "minimum_amount": "<string>",
              "filters": [
                "<any>"
              ],
              "applies_to_price_ids": [
                "<any>"
              ]
            },
            "minimum_amount": "<string>",
            "maximum": {
              "maximum_amount": "<string>",
              "filters": [
                "<any>"
              ],
              "applies_to_price_ids": [
                "<any>"
              ]
            },
            "maximum_amount": "<string>"
          },
          "price_id": "<string>"
        }
      ]
    }
  ]
}