Shopify fee & net payout API

Compute Shopify fees — payment processing (2.9% + $0.30 online by default) plus an optional platform transaction fee when not using Shopify Payments — and net payout. Deterministic fee stacking. Answers 'what are my Shopify fees','Shopify net payout after processing fees','Shopify transaction fee without Shopify Payments'.

Price$0.01per request

MethodPOST

Route/v1/calc/ecom-shopify-fee

StatusLive

MIME typeapplication/json

Rate limit120/minute

CacheNo cache

ecomshopifyfeesprocessingtransaction-feecheckoutecommercecalc

API URLhttps://x402.hexl.dev/v1/calc/ecom-shopify-fee

Integration docs

Example request

{
  "itemPrice": 50,
  "unitCost": 20
}

Example response

{
  "formula": "processingFee = price × procRate + procFlat; transactionFee = price × txnRate; net = price − fees",
  "itemPrice": 50,
  "processingFee": 1.75,
  "transactionFee": 0,
  "totalFees": 1.75,
  "feePercent": 3.5,
  "netPayout": 48.25,
  "unitCost": 20,
  "profitPerUnit": 28.25
}

Input schema

{
  "type": "object",
  "required": [
    "itemPrice"
  ],
  "properties": {
    "itemPrice": {
      "type": "number",
      "examples": [
        50
      ]
    },
    "processingRate": {
      "type": "number",
      "description": "Default 0.029",
      "examples": [
        0.029
      ]
    },
    "processingFlat": {
      "type": "number",
      "description": "Default 0.30",
      "examples": [
        0.3
      ]
    },
    "transactionRate": {
      "type": "number",
      "description": "Platform fee if not using Shopify Payments, default 0",
      "examples": [
        0.02
      ]
    },
    "unitCost": {
      "type": "number",
      "examples": [
        20
      ]
    }
  }
}

Output schema

{
  "type": "object",
  "additionalProperties": true
}