Child address network fee

Batch Operations

This endpoint supports batch operations, allowing you to estimate network fees for multiple contract operations from a specific child address in a single API call.

Batch Request Format

To estimate fees for multiple operations, use the calls array:

{
  "calls": [
    {
      "address": "0xTokenContract...",
      "method": "approve",
      "parameters": ["0xSpender...", "1000000000000000000"],
      "abi": [...]
    },
    {
      "address": "0xProtocolContract...",
      "method": "deposit",
      "parameters": ["1000000000000000000"],
      "abi": [...]
    }
  ]
}

Batch Response Format

Returns individual fees plus totals:

{
  "message": "Batch network fee retrieved (2/2 successful)",
  "statusCode": 200,
  "data": {
    "fees": [
      {
        "index": 0,
        "method": "approve",
        "fee": "0.00001247904",
        "networkFee": "0.00001247904",
        "networkFeeInUSD": "0.01",
        "nativeBalance": "0.5",
        "nativeBalanceInUSD": "450.00",
        "estimatedArrivalTime": 30,
        "transactionFee": "0"
      },
      {
        "index": 1,
        "method": "deposit",
        "fee": "0.00000504",
        "networkFee": "0.00000504",
        "networkFeeInUSD": "0.005",
        "nativeBalance": "0.5",
        "nativeBalanceInUSD": "450.00",
        "estimatedArrivalTime": 30,
        "transactionFee": "0"
      }
    ],
    "totalFee": "0.00001751904",
    "estimatedArrivalTime": 60,
    "errors": []
  }
}

Response Fields

Field	Description
fees	Array of individual fee estimates
totalFee	Sum of all network fees
estimatedArrivalTime	Total time (sum of individual times, 30s each)
errors	Array of any failed estimations

Validation Rules

Rule	Value
Max batch size	20 operations
Min batch size	1 operation

Use Cases

• Fee estimation: Calculate total cost before executing batch operations
• Gas optimization: Compare fees across different operation orderings
• Budget planning: Estimate costs for multi-step DeFi transactions