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Wallet transfers allow you to send stablecoins directly between wallets on the same blockchain network. This is the fastest way to move funds within the HIFI ecosystem.

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How Wallet Transfers Work

HIFI supports single and batch wallet transfers.

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Single Transfers

Send stablecoins to a single wallet address:
  1. Create a transfer – Specify source wallet, destination wallet, and amount
  2. Transaction processing – The transfer is executed on-chain
  3. Confirmation – Receive transaction hash once completed

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Batch Transfers

Send stablecoins to multiple recipients in a single transaction:
  1. Create a batch – Specify source wallet and up to 50 destination wallets with amounts
  2. Transaction processing – All transfers are executed in a single on-chain transaction
  3. Confirmation – Receive transaction hash for the entire batch
Batch transfers are more gas-efficient than sending individual transactions to multiple recipients. You can send to up to 50 recipients in a single batch.

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Batch Transfer Structure

When you create a batch wallet transfer, the API response includes detailed information about the transaction: 
{
  "transferType": "WALLET.TRANSFER.BATCH",
  "transferDetails": {
    "id": "879af7af-67bf-469f-b718-d262a39d4857",
    "requestId": "14a84906-b72e-4847-b34d-51b9048fa6a5",
    "createdAt": "2025-04-05T00:55:50.609Z",
    "updatedAt": "2025-04-05T00:56:33.236Z",
    "chain": "POLYGON",
    "currency": "usdc",
    "contractAddress": "0x41e94eb019c0762f9bfcf9fb1e58725bfb0e7582",
    "status": "COMPLETED",
    "source": {
      /* Source */
    },
    "destination": {
      /* Destination */
    },
    "receipt": {
      /* Receipt */
    }
  }
}

{
  "userId": "6a13bd30-b3a3-4d44-af33-0b32e58261be",
  "walletAddress": "0x99a8c5ED386d217BC6ff0AA1b3585606D475432B",
  "walletType": "INDIVIDUAL"
}

{
  "batch": [
    {
      "amount": "0.04",
      "userId": "6a13bd30-b3a3-4d44-af33-0b32e58261be",
      "walletAddress": "0x742d35Cc6634C0532925a3b844Bc454e4438f44e"
    },
    {
      "amount": "0.05",
      "userId": "a1f70737-3844-4782-a321-ad481108a8ec",
      "walletAddress": "0x848732f6c834E05b17C56fa01E83EE095f72C3c3"
    }
  ]
}

{
  "transactionHash": "0x57f0cd3429ea425d982882243428ef4a1eda5f1be2157c1b34ea48b49b24fe7f",
  "userOpHash": "0xef7bdb071b1fcfb5df629bd4d27ffa6dc32d0a5df676f26fb8c25311df1185ac"
}

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Transaction Status

Wallet transfers progress through several statuses:
  • NOT_INITIATED: The transfer was not submitted due to a validation error
  • CREATED: Transfer request has been created and is awaiting processing
  • INITIATED: Transfer has been submitted to the blockchain
  • PENDING: Transaction is awaiting on-chain confirmation
  • COMPLETED: Transfer has been successfully confirmed on-chain
  • FAILED: Transfer failed (check error details for more information)
  • UNKNOWN: Transfer status could not be determined

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Approval Workflow

Batch transfers can optionally require approval before processing. This is useful for organizations that need multi-party authorization for large or sensitive transfers.

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How Approvals Work

When creating a batch transfer with requireApproval: true:
  1. The transfer enters a PENDING_APPROVAL state
  2. Designated approvers can review and vote on the transfer
  3. Once approval threshold is met, the transfer proceeds
  4. If rejected, the transfer is cancelled

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Approval Response

When approval is required, the receipt includes approval details: 
{
  "receipt": {
    "approval": {
      "id": "006737ca-42d5-4780-b3c2-aeb63279c591",
      "status": "PENDING",
      "createdAt": "2025-02-03T16:11:36.654998+00:00",
      "updatedAt": "2025-02-03T16:12:41.503+00:00",
      "transferId": "006737ca-42d5-4780-b3c2-aeb63279c591",
      "transferType": "WALLET.TRANSFER.BATCH",
      "fromDashboard": true,
      "initiatorProfileId": "aec66b02-4f3f-471c-839a-94820b36abb2",
      "votes": [
        {
          "approverId": "aec66b02-4f3f-471c-839a-94820b36abb2",
          "vote": "APPROVE",
          "comment": "Approved for processing",
          "createdAt": "2025-02-03T16:12:41.503+00:00"
        }
      ]
    }
  }
}

Transfer Approvals

Learn how to configure approval workflows for transfers

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Batch Transfer Limits

  • Maximum recipients: 50 per batch
  • Supported chains: POLYGON
  • Supported currencies: USDC

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Receipt Information

The receipt object contains transaction details once completed:
  • transactionHash: Blockchain transaction hash for the transfer
  • userOpHash: User operation hash for account abstraction wallets
  • approval: Approval workflow details (if applicable)

Batch Transfers

Learn more about batch transfer capabilities

Transfer Approvals

Configure approval workflows for transfers
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