> ## Documentation Index
> Fetch the complete documentation index at: https://docs.portalhq.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Upgrading to EIP-7702

> Learn how to check wallet account type and upgrade EOA wallets to EIP-7702 using Portal's Android SDK.

Portal's Android SDK provides EVM Account Type management through the `portal.evmAccountType` API. This enables checking wallet account types and upgrading EOA wallets to EIP-7702 on supported EVM chains.

## Overview

The EVM Account Type functionality allows you to:

* **Check wallet status** to determine the current account type
* **Get wallet addresses** to retrieve the EOA address and (if applicable) the smart contract address
* **Upgrade to EIP-7702** to enable ejecting the Portal wallet's EOA private key

## Prerequisites

Before using EVM Account Type operations, ensure you have:

* A properly initialized Portal client
* An active wallet on a supported network (see [Create a wallet](./create-a-wallet))
* Understanding of [EVM Account Type concepts](/resources/evmAccountType)
* You fund the [Upgrade Sponsor address with native tokens for the target chain in the Portal Dashboard](https://app.portalhq.io/upgrade-sponsorship)

## Checking Wallet Status

Use `getStatus` to check the current account type of your wallet. The response includes both the account status and metadata about the wallet addresses.

```kotlin theme={null}
lifecycleScope.launch {
    try {
        val chainId = "eip155:10143" // Monad Testnet

        val status = portal.evmAccountType.getStatus(chainId)

        println("Status: ${status.data.status}")
        println("EOA Address: ${status.metadata.eoaAddress}")

        status.metadata.smartContractAddress?.let {
            println("Smart Contract Address: $it")
        }

        if (status.data.status == "EIP_155_EOA") {
            println("Can upgrade to EIP-7702")
        } else if (status.data.status == "EIP_7702_EOA") {
            println("Already upgraded")
        } else {
            println("Cannot upgrade")
        }
    } catch (e: Exception) {
        println("Failed to get account status: ${e.message}")
    }
}
```

**Response (`EvmAccountTypeResponse`):**

* `data.status`: One of `EIP_155_EOA`, `SMART_CONTRACT`, or `EIP_7702_EOA`
* `metadata.eoaAddress`: The EOA address associated with the wallet
* `metadata.smartContractAddress`: Your smart contract wallet address (nullable, may be `null` for EOA-only accounts)
* `metadata.chainId`: The chain identifier

***

## Getting Wallet Addresses

Use `getAddresses` to retrieve the EOA and smart contract addresses for your wallet on a given chain. This is a convenience method that returns the EOA and optional smart contract address, equivalent to the address metadata returned by `getStatus`.

```kotlin theme={null}
lifecycleScope.launch {
    try {
        val chainId = "eip155:10143" // Monad Testnet

        val addresses = portal.evmAccountType.getAddresses(chainId)

        println("EOA Address: ${addresses.eoaAddress}")

        addresses.smartContractAddress?.let {
            println("Smart Contract Address: $it")
        }
    } catch (e: Exception) {
        println("Failed to get addresses: ${e.message}")
    }
}
```

**Parameters:**

* `chainId` (`String`): A CAIP-2 chain identifier (e.g., `"eip155:10143"`)

**Response (`EvmAccountTypeAddresses`):**

* `eoaAddress` (`String`): The EOA address associated with the wallet
* `smartContractAddress` (`String?`): The smart contract wallet address (nullable, `null` for EOA-only accounts)

***

## Upgrading to EIP-7702

Use `upgradeTo7702` to upgrade an EOA wallet to EIP-7702. This method automatically handles the entire upgrade process, including gas subsidization, and returns the transaction hash directly.

```kotlin theme={null}
lifecycleScope.launch {
    try {
        val chainId = "eip155:10143" // Monad Testnet

        // Upgrade to EIP-7702
        val txHash = portal.evmAccountType.upgradeTo7702(chainId)
        println("Upgrade done! TX: $txHash")

        // Verify final status
        val statusAfter = portal.evmAccountType.getStatus(chainId)
        println("Final Status: ${statusAfter.data.status}")

        if (statusAfter.data.status == "EIP_7702_EOA") {
            println("Successfully upgraded to EIP-7702!")
        }
    } catch (e: Exception) {
        println("Upgrade failed: ${e.message}")
    }
}
```

**What happens during the upgrade:**

1. **Chain validation**: Verifies the chain uses the `eip155` namespace
2. **Status check**: Confirms the wallet is currently an `EIP_155_EOA`
3. **Authorization building**: Creates the EIP-7702 authorization list
4. **Signature**: Signs the authorization hash with your wallet
5. **Transaction submission**: Submits the subsidized upgrade transaction (gas is paid by Portal)
6. **Transaction hash**: Returns the on-chain transaction hash

**Response:**

The method returns a `String` containing the transaction hash of the submitted upgrade transaction.

***

<Warning>
  The upgrade process is irreversible per wallet. Once upgraded to EIP-7702, the wallet cannot be reverted to a standard EOA on that chain.
</Warning>

***

## Supported Networks

EVM Account Type upgrades are currently available on:

* **Monad Testnet** (`eip155:10143`)

For a complete list of supported chains, reach out to the Portal team.

***

## Next Steps

* Learn about [signing transactions](./sign-a-transaction)
* Explore [Portal API methods](./portal-api-methods)
* Review [EVM Account Type concepts](/resources/evmAccountType)
* Check out [wallet lifecycle management](./manage-wallet-lifecycle-states)