Follow the smart wallets setup guide to configure smart wallets for your application.

Get the smart wallet address

Once a smart wallet has been created for a user, you can get the address for the smart wallet by finding the account of type: 'smart_wallet' from the user’s linkedAccounts array.

const {user} = usePrivy();
const smartWallet = user.linkedAccounts.find((account) => account.type === 'smart_wallet');
console.log(smartWallet.address);
// Logs the smart wallet's address
console.log(smartWallet.type);
// Logs the smart wallet type (e.g. 'safe', 'kernel', 'light_account', 'biconomy', 'thirdweb', 'coinbase_smart_wallet')

Sign a message

Use the signMessage function from the client returned by useSmartWallets hook in your React component to sign a message using the user’s smart wallet.

signMessage: (input: {message: SignableMessage}, opts?: {uiOptions?: SignMessageModalUIOptions}) => Promise<Hex>

Usage

import {useSmartWallets} from '@privy-io/react-auth/smart-wallets';
const {client} = useSmartWallets();
const uiOptions = {
    title: 'Sample title text',
    description: 'Sample description text',
    buttonText: 'Sample button text'
};
client.signMessage({message: 'Hello, world!'}, {uiOptions}).then((signature) => {
    console.log(signature);
});

Parameters

The signMessage method accepts the following parameters:

​
input.message
string | {raw: Hex | ByteArray}
required

The message to sign by the smart account.

​
opts.uiOptions
SignMessageModalUIOptions

Optional UI customization options for the signature prompt.

Returns

​
signature
Hex

The signed message by the smart wallet.

Sign typed data

Use the signTypedData function from the client returned by useSmartWallets hook in your React component to sign structured data using the user’s smart wallet.

signTypedData: (input: SignTypedDataParameters, opts?: {uiOptions?: SignMessageModalUIOptions}) => Promise<Hex>

Usage

import {useSmartWallets} from '@privy-io/react-auth/smart-wallets';
const {client} = useSmartWallets();
const uiOptions = {
    title: 'Sample title text',
    description: 'Sample description text',
    buttonText: 'Sample button text'
};
client.signTypedData(typedDataRequestParams, {uiOptions}).then((signature) => {
    console.log(signature);
});

Parameters

The signTypedData method accepts the following parameters:

​
input
SignTypedDataParameters
required

The typed data to sign by the smart account.

​
opts.uiOptions
SignMessageModalUIOptions

Optional UI customization options for the signature prompt.

Returns

​
signature
Hex

The signed message by the smart wallet.

Send a transaction

Use the sendTransaction function from the client returned by useSmartWallets hook in your React component to send a transaction using the user’s smart wallet.

sendTransaction: (input: SendTransactionParameters, opts?: {uiOptions?: SendTransactionModalUIOptions}) => Promise<Hex>

Usage

import {useSmartWallets} from '@privy-io/react-auth/smart-wallets';
const {client} = useSmartWallets();
const uiOptions = {
    title: 'Sample title text',
    description: 'Sample description text',
    buttonText: 'Sample button text'
};
client.sendTransaction({
    chain: base,
    to: 'insert-recipient-address',
    value: 0.1
}, {uiOptions}).then((txHash) => {
    console.log(txHash);
});

Parameters

The sendTransaction method accepts the following parameters:

​
input
SendTransactionParameters
required

The transaction to send by the smart account.

​
opts.uiOptions
SendTransactionModalUIOptions

Optional UI customization options for the transaction prompt.

Returns

​
txHash
Hex

The transaction hash of the sent transaction.

Batch transactions

Smart wallets support sending a batch of transactions in a single, atomic submission to the network.

sendTransaction: (input: {calls: Array<{to: string, value?: bigint, data?: string}>}, opts?: {uiOptions?: SendTransactionModalUIOptions}) => Promise<Hex>

Usage

import {useSmartWallets} from '@privy-io/react-auth/smart-wallets';
const {client} = useSmartWallets();
client.sendTransaction({
    calls: [
        // Approve transaction
        {
            to: USDC_ADDRESS,
            data: encodeFunctionData({
                abi: USDC_ABI,
                functionName: 'approve',
                args: ['insert-spender-address', BigInt(1e6)]
            })
        },
        // Transfer transaction
        {
            to: USDC_ADDRESS,
            data: encodeFunctionData({
                abi: USDC_ABI,
                functionName: 'transfer',
                args: ['insert-recipient-address', BigInt(1e6)]
            })
        }
    ]
}).then((txHash) => {
    console.log(txHash);
});

Parameters

The sendTransaction method for batching accepts the following parameters:

​
input.calls
Array<{to: string, value?: bigint, data?: string}>
required

Array of transactions to batch together.

​
opts.uiOptions
SendTransactionModalUIOptions

Optional UI customization options for the transaction prompt.

Returns

​
txHash
Hex

The transaction hash of the batched transaction.

Switch chains

Use the getClientForChain method to create a new smart wallet client for a specific chain.

getClientForChain: ({id: number}) => Promise<SmartWalletClient>

Usage

import {base} from 'viem/chains';
const {getClientForChain} = useSmartWallets();
const baseClient = await getClientForChain({
    id: base.id,
});
// Client will send transaction on Base
baseClient.sendTransaction({
    ...
});

Parameters

The getClientForChain method accepts the following parameters:

​
id
number
required

The chain ID to create a client for.

Returns

​
client
SmartWalletClient

A new smart wallet client configured for the specified chain.

If configured defaultChain does not have a smart wallet network configuration, the smart wallet client will default to using the first configured chain that has a smart wallet network configuration.

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