# Deploy a smart account

> Learn how to deploy a MetaMask smart account.

# Deploy a smart account

You can deploy [MetaMask Smart Accounts](../../concepts/smart-accounts.md) in two different ways. You can either deploy a smart account automatically when sending
the first <GlossaryTerm term="User operation">user operation</GlossaryTerm>, or manually deploy the account.

## Prerequisites

- [Install and set up the Smart Accounts Kit.](../../get-started/install.md)
- [Create a MetaMask smart account.](create-smart-account.md)

## Deploy with the first user operation

When you send the first user operation from a smart account, the Smart Accounts Kit checks whether the account is already deployed. If the account
is not deployed, the toolkit adds the `initCode` to the user operation to deploy the account within the
same operation. Internally, the `initCode` is encoded using the `factory` and `factoryData`.

<Tabs>
<TabItem value="example.ts">

```typescript

// Appropriate fee per gas must be determined for the specific bundler being used.
const maxFeePerGas = 1n
const maxPriorityFeePerGas = 1n

const userOperationHash = await bundlerClient.sendUserOperation({
  account: smartAccount,
  calls: [
    {
      to: '0x1234567890123456789012345678901234567890',
      value: parseEther('0.001'),
    },
  ],
  maxFeePerGas,
  maxPriorityFeePerGas,
})
```

</TabItem>

<TabItem value="config.ts">

```typescript

const publicClient = createPublicClient({
  chain,
  transport: http(),
})

const privateKey = generatePrivateKey()
const account = privateKeyToAccount(privateKey)

export const smartAccount = await toMetaMaskSmartAccount({
  client: publicClient,
  implementation: Implementation.Hybrid,
  deployParams: [account.address, [], [], []],
  deploySalt: '0x',
  signer: { account },
})

export const bundlerClient = createBundlerClient({
  client: publicClient,
  transport: http('https://public.pimlico.io/v2/11155111/rpc'),
})
```

</TabItem>
</Tabs>

## Deploy manually

To deploy a smart account manually, call the [`getFactoryArgs`](../../reference/smart-account.md#getfactoryargs)
method from the smart account to retrieve the `factory` and `factoryData`. This allows you to use a relay account to sponsor the deployment without needing a paymaster.

The `factory` represents the contract address responsible for deploying the smart account, while `factoryData` contains the
calldata that will be executed by the `factory` to deploy the smart account.

The relay account can be either an <GlossaryTerm term="Externally owned account (EOA)">EOA</GlossaryTerm> or another smart account. This example uses an EOA.

<Tabs>
<TabItem value="example.ts">

```typescript

const { factory, factoryData } = await smartAccount.getFactoryArgs()

// Deploy smart account using relay account.
const hash = await walletClient.sendTransaction({
  to: factory,
  data: factoryData,
})
```

</TabItem>

<TabItem value="config.ts">

```typescript

const publicClient = createPublicClient({
  chain,
  transport: http(),
})

const privateKey = generatePrivateKey()
const account = privateKeyToAccount(privateKey)

export const smartAccount = await toMetaMaskSmartAccount({
  client: publicClient,
  implementation: Implementation.Hybrid,
  deployParams: [account.address, [], [], []],
  deploySalt: '0x',
  signer: { account },
})

const relayAccountPrivateKey = '0x121..'
const relayAccount = privateKeyToAccount(relayAccountPrivateKey)

export const walletClient = createWalletClient({
  account: relayAccount,
  chain,
  transport: http(),
})
```

</TabItem>
</Tabs>

## Next steps

- Learn more about [sending user operations](send-user-operation.md).
- To sponsor gas for end users, see how to [send a gasless transaction](send-gasless-transaction.md).