Block addresses from transfers
Fee: 0.001 ETH (mainnet)
Connect your EVM wallet to use this tool.
A blacklist blocks named addresses from transferring your token. Projects use it against sniper bots and known bad actors, but it is a centralised control that scanners report, so it deserves an explicit explanation in your documentation.
Connect the owner wallet on the contract's network.
Provide the address to block or unblock and verify it carefully.
Approve the transaction to apply the change.
Many treat it as one, because it means the owner can freeze specific holders. If you keep the function, publish the policy for when it is used — and consider renouncing ownership once launch defence is no longer needed.
Blacklisting only prevents future transfers. It cannot reverse completed trades or recover funds already moved.
Renounce ownership. The function stays in the bytecode but becomes uncallable forever.