withdraw3 payload (gRPC) | Hyperliquid API Docs

Decode Hyperliquid `withdraw3` payloads for external withdrawals, returned through Dwellir's read-only L1 gRPC API.

Read-only action reference

Dwellir's Hyperliquid gRPC API returns this decoded action payload through StreamBlocks and GetBlock. It does not submit or execute this action. Submit supported user write actions through Hyperliquid's native POST /exchange endpoint.

The decoded withdraw3 payload records a request to bridge funds from Hyperliquid to an external Ethereum address.

Sample Data

JSON

{
  "signature": {
    "r": "0xbf01efa816fdc37c8eea7ae4893999cae61ead196013d4bcb36ff8aad3058650",
    "s": "0x2dcc0e2d708eccdf7ab68a23b99b4142aa6eca02141623851158821d371bd610",
    "v": 27
  },
  "action": {
    "type": "withdraw3",
    "signatureChainId": "0x66eee",
    "hyperliquidChain": "Mainnet",
    "destination": "0xc2c9981b9061e533affaaf03105c561154f1ec84",
    "amount": "16.494002",
    "time": 1768146916924
  },
  "nonce": 1768146916924
}

View this transaction on Hypurrscan

Field Reference

Action Fields

Field	Type	Description
`type`	string	Always `"withdraw3"`
`signatureChainId`	string	Chain ID for signing (e.g., `"0xa4b1"` for Arbitrum)
`hyperliquidChain`	string	Source chain: `"Mainnet"` or `"Testnet"`
`destination`	string	External Ethereum address to receive funds
`amount`	string	Amount to withdraw in USD
`time`	number	Transaction timestamp

Withdrawal Process

User submits withdraw3 action
Validators verify the withdrawal request
Validators sign the withdrawal (ValidatorSignWithdrawalAction)
Bridge transaction is executed on Arbitrum
Funds arrive at destination address

Use Cases

Withdrawal Monitoring

Track withdrawals leaving the platform:

Python

def process_withdraw3_action(action):
    destination = action.get('destination')
    amount = action.get('amount')

    print(f"Withdrawal: ${amount} to {destination}")

Capital Flow Analysis

Monitor net flows in and out of Hyperliquid to understand market sentiment.

Compliance Monitoring

Track withdrawal destinations for regulatory compliance.

ValidatorSignWithdrawalAction - Validator withdrawal signatures
VoteEthFinalizedWithdrawalAction - Finalized withdrawal votes
usdSend - Internal USD transfers

withdraw3 payload - External Withdrawals