Address Operations
Custom Smart Contract Write
API Documentation
Wallet Management
Address Operations
- GETGet Addresses
- POSTGenerate Address
- GETGet Address
- PATCHUpdate Address
- POSTWhitelist address
- DELUnwhitelist address
- GETGet Balance
- GETGet Balances
- GETGet transactions
- POSTWithdraw Network Fee
- POSTWithdraw
- POSTGet Swap Quote
- POSTSwap Execute
- POSTCustom Smart Contract Network Fee
- POSTCustom Smart Contract Read
- POSTCustom Smart Contract Write
Withdrawals
Custom Smart Contracts
Asset Management
Transactions
AML(Anti Money Laundering)
Auto Settlements
Asset Recovery
Payment Links
Miscellaneous
Address Operations
Custom Smart Contract Write
This API provides endpoints for interacting with smart contracts on the blockchain. It allows for executing contract functions.
Request Body
The request body should be in raw format and include the following parameters:
-
address
: The address for the contract -
method
: The method to be called -
parameters
: An array of parameters -
abi
: An array containing the ABI of the contract or method
POST
/
v1
/
wallets
/
{walletId}
/
addresses
/
{addressId}
/
contracts
/
write
curl --request POST \
--url https://api.blockradar.co/v1/wallets/{walletId}/addresses/{addressId}/contracts/write \
--header 'Content-Type: application/json' \
--header 'x-api-key: <api-key>' \
--data '{
"abi": [
{
"constant": false,
"inputs": [
{
"name": "_to",
"type": "address"
},
{
"name": "_value",
"type": "uint256"
}
],
"name": "transfer",
"outputs": [],
"payable": false,
"stateMutability": "nonpayable",
"type": "function"
}
],
"address": "0x337610d27c682E347C9cD60BD4b3b107C9d34dDd",
"code": "654452",
"method": "transfer",
"parameters": [
"0x2455eC6700092991Ce0782365A89d5Cd89c8Fa22",
"100000"
]
}'
{
"data": {
"amlScreening": null,
"amountPaid": null,
"assetSwept": null,
"assetSweptAmount": null,
"assetSweptAt": null,
"assetSweptGasFee": null,
"assetSweptHash": null,
"assetSweptRecipientAddress": null,
"assetSweptResponse": null,
"assetSweptSenderAddress": null,
"blockHash": null,
"blockNumber": null,
"blockchain": {
"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,
"logoUrl": "https://res.cloudinary.com/blockradar/image/upload/v1716800080/crypto-assets/bnb-bnb-logo_e4qdyk.png",
"name": "BNB smart chain",
"slug": "bnb-smart-chain",
"symbol": "bnb",
"tokenStandard": "BEP20",
"updatedAt": "2024-11-26T19:04:13.941Z"
},
"chainId": null,
"confirmations": null,
"confirmed": false,
"createdAt": "2025-01-15T21:17:24.013Z",
"currency": null,
"fee": null,
"feeMetadata": null,
"gasFee": null,
"gasPrice": null,
"gasUsed": null,
"hash": null,
"id": "42e94af1-1b8c-47fd-9250-276a3c8a3a71",
"metadata": null,
"network": "testnet",
"note": null,
"reason": "{\"method\":\"transfer\",\"parameters\":[\"0x2455eC6700092991Ce0782365A89d5Cd89c8Fa22\",\"100000\"],\"abi\":{\"constant\":false,\"inputs\":[{\"name\":\"_to\",\"type\":\"address\"},{\"name\":\"_value\",\"type\":\"uint256\"}],\"name\":\"transfer\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"}}",
"recipientAddress": "0x337610d27c682E347C9cD60BD4b3b107C9d34dDd",
"response": null,
"senderAddress": "0x947514e4B803e312C312da0F1B41fEDdbe15ae7a",
"status": "PENDING",
"tokenAddress": "0x337610d27c682E347C9cD60BD4b3b107C9d34dDd",
"type": "CUSTOM_SMART_CONTRACT",
"updatedAt": "2025-01-15T21:17:24.013Z",
"wallet": {
"address": "0x947514e4B803e312C312da0F1B41fEDdbe15ae7a",
"business": {
"id": "4b96c271-35eb-45e8-b558-6a53f95df601",
"name": "Test One Inc"
},
"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 Master Wallet",
"network": "testnet",
"status": "ACTIVE",
"updatedAt": "2024-10-30T13:11:56.221Z"
}
},
"message": "Contract write initiated successfully",
"statusCode": 200
}
Authorizations
Path Parameters
Example:
"YOUR_WALLET_ID"
Example:
"ADDRESS_ID"
Body
application/json
Response
200 - application/json
200
The response is of type object
.
curl --request POST \
--url https://api.blockradar.co/v1/wallets/{walletId}/addresses/{addressId}/contracts/write \
--header 'Content-Type: application/json' \
--header 'x-api-key: <api-key>' \
--data '{
"abi": [
{
"constant": false,
"inputs": [
{
"name": "_to",
"type": "address"
},
{
"name": "_value",
"type": "uint256"
}
],
"name": "transfer",
"outputs": [],
"payable": false,
"stateMutability": "nonpayable",
"type": "function"
}
],
"address": "0x337610d27c682E347C9cD60BD4b3b107C9d34dDd",
"code": "654452",
"method": "transfer",
"parameters": [
"0x2455eC6700092991Ce0782365A89d5Cd89c8Fa22",
"100000"
]
}'
{
"data": {
"amlScreening": null,
"amountPaid": null,
"assetSwept": null,
"assetSweptAmount": null,
"assetSweptAt": null,
"assetSweptGasFee": null,
"assetSweptHash": null,
"assetSweptRecipientAddress": null,
"assetSweptResponse": null,
"assetSweptSenderAddress": null,
"blockHash": null,
"blockNumber": null,
"blockchain": {
"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,
"logoUrl": "https://res.cloudinary.com/blockradar/image/upload/v1716800080/crypto-assets/bnb-bnb-logo_e4qdyk.png",
"name": "BNB smart chain",
"slug": "bnb-smart-chain",
"symbol": "bnb",
"tokenStandard": "BEP20",
"updatedAt": "2024-11-26T19:04:13.941Z"
},
"chainId": null,
"confirmations": null,
"confirmed": false,
"createdAt": "2025-01-15T21:17:24.013Z",
"currency": null,
"fee": null,
"feeMetadata": null,
"gasFee": null,
"gasPrice": null,
"gasUsed": null,
"hash": null,
"id": "42e94af1-1b8c-47fd-9250-276a3c8a3a71",
"metadata": null,
"network": "testnet",
"note": null,
"reason": "{\"method\":\"transfer\",\"parameters\":[\"0x2455eC6700092991Ce0782365A89d5Cd89c8Fa22\",\"100000\"],\"abi\":{\"constant\":false,\"inputs\":[{\"name\":\"_to\",\"type\":\"address\"},{\"name\":\"_value\",\"type\":\"uint256\"}],\"name\":\"transfer\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"}}",
"recipientAddress": "0x337610d27c682E347C9cD60BD4b3b107C9d34dDd",
"response": null,
"senderAddress": "0x947514e4B803e312C312da0F1B41fEDdbe15ae7a",
"status": "PENDING",
"tokenAddress": "0x337610d27c682E347C9cD60BD4b3b107C9d34dDd",
"type": "CUSTOM_SMART_CONTRACT",
"updatedAt": "2025-01-15T21:17:24.013Z",
"wallet": {
"address": "0x947514e4B803e312C312da0F1B41fEDdbe15ae7a",
"business": {
"id": "4b96c271-35eb-45e8-b558-6a53f95df601",
"name": "Test One Inc"
},
"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 Master Wallet",
"network": "testnet",
"status": "ACTIVE",
"updatedAt": "2024-10-30T13:11:56.221Z"
}
},
"message": "Contract write initiated successfully",
"statusCode": 200
}