Revoke token approvals on Base
Base is a fast, low-fee EVM chain, which makes revoking cheap — usually a few cents. The process is the same as anywhere on EVM: set the allowance back to zero.
Steps
- Connect your wallet to a revoke tool, or open your address on Basescan and inspect allowances.
- Review the list: unlimited allowances to unknown contracts first.
- Sign
approve(spender, 0)for each one you want to clear. You pay only gas. - Confirm the transaction on Base.
Watch for new approvals
Revoking is a cleanup, not a defence. The next risky approval can appear any time you use a new dapp. Shingan watches Base alongside Ethereum, Polygon, Arbitrum, Optimism and BNB Chain, and alerts you on Telegram the moment an approval lands.