v1
latestOpenAPI 3.0.32026-07-26184851.6 MBSmart Contract
Master Wallet Write Sign-Only
This API provides endpoints for interacting with smart contracts on the blockchain. It allows for executing contract functions without broadcasting
Request Body
The request body should be in raw format and include the following parameters:
| Parameter | Type | Required | Description |
|---|---|---|---|
| address | string | Yes | The address of the contract. |
| method | string | Yes | The method to be called on the contract. |
| parameters | array | Yes | An array of parameters to pass to the method. |
| abi | array | Yes | An array containing the ABI of the contract or method. |
post/v1/wallets/{walletId}/contracts/write/sign
Request body
Example request
{
"calls": [
{
"abi": [
{
"constant": false,
"inputs": [
{
"name": "_to",
"type": "address"
},
{
"name": "_value",
"type": "uint256"
}
],
"name": "transfer",
"outputs": [],
"payable": false,
"stateMutability": "nonpayable",
"type": "function"
}
],
"address": "0x337610d27c682E347C9cD60BD4b3b107C9d34dDd",
"method": "transfer",
"parameters": [
"0x2455eC6700092991Ce0782365A89d5Cd89c8Fa22",
"10000"
]
},
{
"abi": [
{
"constant": false,
"inputs": [
{
"name": "_to",
"type": "address"
},
{
"name": "_value",
"type": "uint256"
}
],
"name": "transfer",
"outputs": [],
"payable": false,
"stateMutability": "nonpayable",
"type": "function"
}
],
"address": "0x337610d27c682E347C9cD60BD4b3b107C9d34dDd",
"method": "transfer",
"parameters": [
"0x2455eC6700092991Ce0782365A89d5Cd89c8Fa22",
"10000"
]
}
]
}Response
Ethereum / Tron / Ethereum (Batch) / Tron (Batch)
Example response
{
"data": {
"amountUSD": "0.00",
"blockchain": {
"createdAt": "2024-05-27T14:31:14.966Z",
"derivationPath": "m/44'/60'/0'/0",
"id": "74733889-4ecd-403e-9840-94e87c043f24",
"isActive": true,
"isEvmCompatible": true,
"isL2": true,
"name": "base",
"slug": "base",
"symbol": "eth",
"updatedAt": "2024-11-26T20:04:13.945Z"
},
"confirmed": true,
"createdAt": "2025-08-11T22:21:56.077Z",
"currency": "USD",
"errors": [],
"hash": "0x229d811ef34a9f12454e89f12e06945dfc8122538a0af6369ec3f2a2f9aa8cbb",
"id": "fe2d8c39-a6ba-41cb-99e7-05c4dcee6c94",
"network": "testnet",
"rateUSD": "0.00",
"reason": "{\"method\":\"transfer\",\"parameters\":[\"0x451dEFC27B45808078e875556AF06bCFdC697BA4\",\"10000\"],\"abi\":{\"constant\":false,\"inputs\":[{\"name\":\"_to\",\"type\":\"address\"},{\"name\":\"_value\",\"type\":\"uint256\"}],\"name\":\"transfer\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"}}",
"recipientAddress": "0x036CbD53842c5426634e7929541eC2318f3dCF7e",
"reference": "xvLz7CIFoD",
"senderAddress": "0x947514e4B803e312C312da0F1B41fEDdbe15ae7a",
"signedTransaction": "0xf8ab3e83124fc08301623d94036cbd53842c5426634e7929541ec2318f3dcf7e80b844a9059cbb000000000000000000000000451defc27b45808078e875556af06bcfdc697ba400000000000000000000000000000000000000000000000000000000000027108302948ca0c86783ba50374a959907d9174c2a0b5cd3a87d55336e6c9a6420fde0dd07303ea019a93dad742a9bed4c6d1f514f7fe26777e8f17fe090967a9719afddaa281d64",
"status": "SUCCESS",
"success": [
{
"amlScreening": {},
"amount": null,
"amountPaid": null,
"amountUSD": "0.00",
"asset": null,
"assetSwept": null,
"assetSweptAmount": null,
"assetSweptAt": null,
"assetSweptGasFee": null,
"assetSweptHash": null,
"assetSweptRecipientAddress": null,
"assetSweptSenderAddress": null,
"blockHash": null,
"blockNumber": null,
"blockchain": {
"configurations": null,
"createdAt": "2024-05-14T17:53:33.106Z",
"derivationPath": "m/44'/60'/0'/0",
"id": "b80d3d5e-16f1-4d99-be5e-6dfcd27f89aa",
"isActive": true,
"isEvmCompatible": true,
"isL2": false,
"name": "BNB smart chain",
"networkFeeModel": "native",
"slug": "bnb-smart-chain",
"symbol": "bnb",
"tokenStandard": "BEP20",
"updatedAt": "2024-11-26T20:04:13.941Z"
},
"chainId": null,
"confirmations": null,
"confirmed": true,
"createdAt": "2026-01-11T23:32:52.312Z",
"createdChannel": "dashboard",
"currency": "USD",
"fee": null,
"feeHash": null,
"feeUSD": null,
"gasFee": null,
"gasPrice": null,
"gasUsed": null,
"hash": "0x0d552ef725fd825c496aed569085cd6ff8c4786fe9134f762ebe7c42f9060c6a",
"id": "4eb95385-0874-4c2c-8d5b-ef2464211977",
"isAutoSweep": false,
"metadata": {
"batchIndex": 0,
"batchTotal": 2
},
"network": "testnet",
"note": null,
"rate": null,
"rateUSD": "0.00",
"reason": "{\"method\":\"transfer\",\"parameters\":[\"0x2455eC6700092991Ce0782365A89d5Cd89c8Fa22\",\"10000\"],\"abi\":{\"constant\":false,\"inputs\":[{\"name\":\"_to\",\"type\":\"address\"},{\"name\":\"_value\",\"type\":\"uint256\"}],\"name\":\"transfer\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"}}",
"recipientAddress": "0x337610d27c682E347C9cD60BD4b3b107C9d34dDd",
"reference": "skoRYdqnuemY1B4ob6R",
"senderAddress": "0x947514e4B803e312C312da0F1B41fEDdbe15ae7a",
"signedTransaction": "0xf8ab82017f8407270e008287f294337610d27c682e347c9cd60bd4b3b107c9d34ddd80b844a9059cbb0000000000000000000000002455ec6700092991ce0782365a89d5cd89c8fa22000000000000000000000000000000000000000000000000000000000000271081e5a037bad0851081d7eb54f91ee21b2b41915771262fdf3641f1f53b791d879f3551a00130ea4869ea83e3959141e4502ec28135f75bc635a1b63d5f95a880290195be",
"status": "SUCCESS",
"toAmount": null,
"toCurrency": null,
"tokenAddress": "0x337610d27c682E347C9cD60BD4b3b107C9d34dDd",
"type": "SIGNED",
"updatedAt": "2026-01-11T23:32:52.312Z",
"wallet": {
"address": "0x947514e4B803e312C312da0F1B41fEDdbe15ae7a",
"configurations": {
"addresses": {
"isActive": true,
"prefunding": {
"isActive": true,
"rules": []
}
},
"autoSettlement": {
"isActive": true,
"rules": []
},
"autoSweeping": {
"isActive": true
},
"withdrawal": {
"gasless": {
"isActive": true
}
}
},
"createdAt": "2024-08-22T15:29:11.387Z",
"derivationPath": "m/44'/60'/0'/0/0",
"description": "This is BNB smart chain testnet master wallet",
"id": "4465468a-3c36-4536-918a-91d689e18a74",
"isActive": true,
"name": "BNB Smart Chain",
"network": "testnet",
"status": "ACTIVE",
"updatedAt": "2025-09-13T02:02:44.110Z"
}
},
{
"amlScreening": {},
"amount": null,
"amountPaid": null,
"amountUSD": "0.00",
"asset": null,
"assetSwept": null,
"assetSweptAmount": null,
"assetSweptAt": null,
"assetSweptGasFee": null,
"assetSweptHash": null,
"assetSweptRecipientAddress": null,
"assetSweptSenderAddress": null,
"blockHash": null,
"blockNumber": null,
"blockchain": {
"configurations": null,
"createdAt": "2024-05-14T17:53:33.106Z",
"derivationPath": "m/44'/60'/0'/0",
"id": "b80d3d5e-16f1-4d99-be5e-6dfcd27f89aa",
"isActive": true,
"isEvmCompatible": true,
"isL2": false,
"name": "BNB smart chain",
"networkFeeModel": "native",
"slug": "bnb-smart-chain",
"symbol": "bnb",
"tokenStandard": "BEP20",
"updatedAt": "2024-11-26T20:04:13.941Z"
},
"chainId": null,
"confirmations": null,
"confirmed": true,
"createdAt": "2026-01-11T23:32:53.234Z",
"createdChannel": "dashboard",
"currency": "USD",
"fee": null,
"feeHash": null,
"feeUSD": null,
"gasFee": null,
"gasPrice": null,
"gasUsed": null,
"hash": "0x0d552ef725fd825c496aed569085cd6ff8c4786fe9134f762ebe7c42f9060c6a",
"id": "62e04079-9079-441b-9f1f-8c23a7289185",
"isAutoSweep": false,
"metadata": {
"batchIndex": 1,
"batchTotal": 2
},
"network": "testnet",
"note": null,
"rate": null,
"rateUSD": "0.00",
"reason": "{\"method\":\"transfer\",\"parameters\":[\"0x2455eC6700092991Ce0782365A89d5Cd89c8Fa22\",\"10000\"],\"abi\":{\"constant\":false,\"inputs\":[{\"name\":\"_to\",\"type\":\"address\"},{\"name\":\"_value\",\"type\":\"uint256\"}],\"name\":\"transfer\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"}}",
"recipientAddress": "0x337610d27c682E347C9cD60BD4b3b107C9d34dDd",
"reference": "qwjEYt4ioftSEXWzrX9",
"senderAddress": "0x947514e4B803e312C312da0F1B41fEDdbe15ae7a",
"signedTransaction": "0xf8ab82017f8407270e008287f294337610d27c682e347c9cd60bd4b3b107c9d34ddd80b844a9059cbb0000000000000000000000002455ec6700092991ce0782365a89d5cd89c8fa22000000000000000000000000000000000000000000000000000000000000271081e5a037bad0851081d7eb54f91ee21b2b41915771262fdf3641f1f53b791d879f3551a00130ea4869ea83e3959141e4502ec28135f75bc635a1b63d5f95a880290195be",
"status": "SUCCESS",
"toAmount": null,
"toCurrency": null,
"tokenAddress": "0x337610d27c682E347C9cD60BD4b3b107C9d34dDd",
"type": "SIGNED",
"updatedAt": "2026-01-11T23:32:53.234Z",
"wallet": {
"address": "0x947514e4B803e312C312da0F1B41fEDdbe15ae7a",
"configurations": {
"addresses": {
"isActive": true,
"prefunding": {
"isActive": true,
"rules": []
}
},
"autoSettlement": {
"isActive": true,
"rules": []
},
"autoSweeping": {
"isActive": true
},
"withdrawal": {
"gasless": {
"isActive": true
}
}
},
"createdAt": "2024-08-22T15:29:11.387Z",
"derivationPath": "m/44'/60'/0'/0/0",
"description": "This is BNB smart chain testnet master wallet",
"id": "4465468a-3c36-4536-918a-91d689e18a74",
"isActive": true,
"name": "BNB Smart Chain",
"network": "testnet",
"status": "ACTIVE",
"updatedAt": "2025-09-13T02:02:44.110Z"
}
}
],
"tokenAddress": "0x036CbD53842c5426634e7929541eC2318f3dCF7e",
"type": "SIGNED",
"updatedAt": "2025-08-11T22:21:56.077Z",
"wallet": {
"address": "0x947514e4B803e312C312da0F1B41fEDdbe15ae7a",
"createdAt": "2024-08-22T16:05:46.167Z",
"derivationPath": "m/44'/60'/0'/0/0",
"description": "This is Base wallet",
"id": "e17dea25-6c01-4b3a-a4ae-51f411bf69cd",
"isActive": true,
"name": "Base Wallet",
"network": "testnet",
"status": "ACTIVE",
"updatedAt": "2024-08-22T16:05:46.167Z"
}
},
"message": "Contract write signed successfully",
"statusCode": 200
}