> For the complete Linea documentation index, see [llms.txt](/llms.txt). > Agents can fetch this page as Markdown at [https://docs.linea.build/protocol/eip-7702.md](https://docs.linea.build/protocol/eip-7702.md). # EIP-7702 support [EIP-7702](https://eips.ethereum.org/EIPS/eip-7702) is an Ethereum upgrade introduced in the [**Prague hardfork**](https://eips.ethereum.org/EIPS/eip-7600) that allows a regular wallet (EOA—Externally Owned Account) to behave like a smart contract wallet without changing address, migrating funds, or creating a new seed phrase. The delegation persists until explicitly revoked. EIP-7702 is supported on Linea as of [Beta v5.0](/changelog/release-notes#beta-v50). ## What it enables | Capability | What it means in practice | | --- | --- | | **Transaction batching** | Approve + swap + deposit in a single transaction | | **Gas sponsorship** | A third party pays the gas fee—users need no ETH to transact | | **Pay gas in ERC-20** | Users pay gas in USDC, DAI, or any ERC-20 token | | **Session keys** | Grant a dapp time-limited, scoped permissions without exposing your main key | | **Social recovery** | Set up guardian-based recovery or multisig on your existing address | | **And more** | Spending limits, recurring payments, alternative authentication (passkeys, multisig), and other programmable account behaviors | ## How it works EIP-7702 introduces a new transaction type **`0x04`**. This transaction includes an `authorizationList` field—a signed list of tuples `(chain_id, contract_address, nonce)`—where each entry authorizes the EOA to delegate to a specific smart contract. When the EVM processes a type `0x04` transaction, it permanently sets the account's bytecode to point to the delegated contract. The delegation persists after the transaction until explicitly revoked. ### Revoking a delegation Send a new type `0x04` transaction pointing the delegation to `address(0)`. This removes the bytecode and returns the account to a normal EOA. Delegation is persistent The delegation does not expire after one transaction. It remains active for all future interactions with your account until you explicitly revoke it by sending a new type `0x04` transaction pointing to `address(0)`. ## Important considerations ### Receiving ETH after delegation Once your EOA delegates to a contract, it effectively has code. If that contract does not implement a `receive()` or `fallback()` function, plain ETH transfers to your address will revert. Make sure the contract you delegate to can handle incoming ETH if you expect to receive it. EIP-7702 enables both gas sponsorship (where a third party covers transaction fees) and gasless transactions (where users pay fees in ERC-20 tokens). ### Hardware wallet limitation As of March 2026, some hardware wallets cannot sign `authorizationList` entries. Gas sponsorship and smart account activation may not be available for all hardware wallet users. ## Related - [Forced transactions](/protocol/forced-transactions) - [Changelog](/changelog/release-notes)