This is an emergency guide for crypto users. It focuses on how to clear EIP-7702 wallet delegation when you have no gas to send a transaction. You can complete the whole process without sending native tokens to the compromised wallet.
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Clearing an EIP-7702 delegation is essentially sending a type 0x04 transaction that points to the zero address. Without gas, you indeed cannot send this transaction. However, EIP-7702 itself supports a gas sponsorship mechanism that allows a third party to pay the gas fee for you. If an attacker has already compromised your wallet, sending ETH into it will be drained immediately. In that case, gas sponsorship is the only viable option.
Minimum viable steps
Goal: Clear the EIP-7702 delegation without sending native tokens to the compromised wallet. Follow these steps in order.
Step 1: Confirm that the delegation really needs to be cleared
Open Etherscan, enter your wallet address, and check the "Authorizations (EIP-7702)" field under "More Info". If it shows a non-zero address, the delegation exists and needs to be cleared. The completion standard is that you confirm Etherscan shows a non-zero delegation address.
Step 2: Generate the authorization signature (key step)
The core of this step is to use your wallet private key to sign a message offline, pointing the delegation target to the zero address. This signature itself does not consume gas. There are two common ways to do it.
Case A: Use Foundry (recommended, works even without coding experience)
Run the following command:
cast wallet sign-auth \ --private-key \ --chain \ --nonce \ 0x0000000000000000000000000000000000000000
Notes:
nonceis your wallet's current transaction sequence number. If you do not know what to enter, usecast nonce --rpc-urlto check it.chainis the chain ID of the corresponding public chain. Ethereum mainnet is 1, Polygon is 137, and so on.
Case B: Use eip7702reset CLI (more automated)
After installing the Rust environment, run:
cargo install eip7702reset eip7702reset clear --rpc-url --gas-limit 50000
This tool will interactively prompt you to enter your private key. You do not need to manually enter the nonce. The completion standard is that you finally get a signed_authorization_hex string.
Step 3: Hand it to a Relayer for broadcasting (let someone else pay the gas)
After generating the offline signature, you still have no gas. You need to delegate a Relayer to pay the gas and submit the transaction for you. There are two options.
Case A: Use Alchemy Wallet API (enterprise-level solution)
Alchemy's undelegateAccount interface sponsors gas through the BSO policy. You can complete the clearing operation without holding native tokens in the account.
Case B: Manually find a third party willing to sponsor gas
The EIP-7702 design allows anyone, not just the wallet owner, to submit a type 0x04 transaction. The signature you generate is the transaction credential. A Relayer can use it to submit the transaction that clears the delegation. There are open source Gasless Revoke scripts on GitHub that allow a sponsor to submit the transaction. The completion standard is that the Relayer successfully submits the delegation clearing transaction and the on-chain state is updated.
Troubleshooting
Case A: Signing reports "Nonce mismatch"
Check the current nonce of your wallet. The fastest way is to use cast nonce . The nonce increases by 1 after each completed transaction. The nonce used for signing must exactly match the nonce at the time of broadcasting.
Case B: Relayer fails to submit the transaction with "Invalid signature"
Check whether the chain_id used for signing is correct. If you signed with chain_id = 0, it should theoretically be valid on all chains, but some wallet implementations may behave differently. It is recommended to verify the chain ID parameter.
Case C: Cannot find a Relayer willing to sponsor gas
You can try using a smart wallet client that supports EIP-7702. They usually have built-in gas sponsorship features and can directly initiate gasless transactions.
Case D: After clearing, the wallet still shows "delegated"
After clearing an EIP-7702 delegation, storage and code are separated. A zero address delegation only clears the code pointer, while storage data may still remain. If the wallet only checks the code status, it may misjudge. The most accurate verification is to check the code prefix 0xef0100 directly on Etherscan.
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Verification and wrap-up
After clearing the delegation, open Etherscan and enter your wallet address. If the "Authorizations" field has disappeared or shows 0x0000000000000000000000000000000000000000, the delegation has been successfully cleared and the account has returned to a normal EOA.
How to verify completion: Confirm on Etherscan that the "Authorizations (EIP-7702)" field is empty or shows the zero address. If the wallet interface still shows a cached prompt, clear your browser cache and check again.
