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Overview

Portal’s EVM Account Type feature enables you to upgrade your Portal wallets to EIP-7702, providing enhanced functionality and compatibility with smart contract features. With this module, you can:
  • Check wallet status to determine the current account type
  • Upgrade to EIP-7702 to enable ejecting the Portal wallet’s EOA private key

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What is EIP-7702?

EIP-7702 is an Ethereum Improvement Proposal that allows Externally Owned Accounts (EOAs) to behave like smart contract accounts. This upgrade enables:
  • Ejecting the EOA private key from the Portal wallet
  • Enabling smart contract capabilities for the Portal wallet
  • Saves gas fee by not needing to deploy a smart contract
EIP-7702 is not yet supported on all chains. Please check with the Portal team to see if your chain is supported.

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How the Upgrade Works

When you upgrade a Portal wallet to EIP-7702:
  1. Status check confirms the wallet is an EIP_155_EOA
  2. Authorization is built and signed by the EOA
  3. Upgrade transaction is submitted on-chain by your upgrade sponsor configured in the Portal Dashboard
  4. Wallet transforms to EIP_7702_EOA account type
Only wallets with an EIP_155_EOA account type can be upgraded to EIP-7702. Smart contract wallets and already upgraded wallets cannot perform this operation.

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Prerequisites

Before upgrading a wallet to EIP-7702, ensure:

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Key Operations

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Get Wallet Status

Check the current account type of your Portal wallet. Parameters:
  • chain: CAIP-2 format chain ID (e.g., eip155:10143)
Returns:
  • status: Current account type (EIP_155_EOA, SMART_CONTRACT, or EIP_7702_EOA)
  • eoaAddress: The EOA address of your Portal wallet
  • smartContractAddress: The smart contract address of your Portal wallet (if account abstraction is enabled)
  • chainId: The chain identifier

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Upgrade to EIP-7702

Upgrade an EOA wallet to EIP-7702 to enable smart contract capabilities and eject the EOA private key. Parameters:
  • chain: CAIP-2 format chain ID
Returns:
  • txHash: Transaction hash (if upgrade was performed)
The upgradeTo7702() method handles the entire upgrade process automatically, including building the authorization, signing, and submitting the transaction.

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Transaction Flow

The upgrade process follows these steps:
  1. Check status using getStatus() to verify wallet is EIP_155_EOA
  2. Fund Upgrade Sponsor address with native tokens for the target chain
  3. Call upgradeTo7702() to perform the upgrade
  4. Wait for confirmation on-chain
  5. Verify upgrade by checking status again and ensuring the wallet is EIP_7702_EOA
The upgrade is a one-way operation. Once the wallet is upgraded to EIP-7702, it cannot be downgraded.
After upgrading to EIP-7702, you must use the EOA address of your Portal wallet to interact with the chain from getStatus().

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Supported Networks

The EVM Account Type feature is currently available on:
  • Monad Testnet (eip155:10143)
  • Additional EIP-7702 compatible chains (check with Portal team)

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Security Considerations

Upgrading to EIP-7702 modifies how your wallet operates on-chain. Always:
  • Verify you’re on the correct network before upgrading
  • Ensure the Upgrade Sponsor address has sufficient funds for gas
  • Test on testnet before mainnet deployment
  • Understand that the upgrade is a one-way operation per wallet

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Best Practices

  1. Check status first: Always verify wallet type before attempting upgrade
  2. Fund adequately: Ensure Upgrade Sponsor address has enough native tokens for gas fees
  3. Monitor transactions: Track the transaction hash for confirmation
  4. Test thoroughly: Validate on testnet before production use

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Next Steps

Ready to implement EIP-7702 upgrades in your app? Choose your platform: