Protect your crypto by removing dangerous token approvals. Essential security for every DeFi user.
Over $2 billion has been stolen through exploited token approvals. If you have ever used a DEX, bridge, or DeFi protocol, you likely have active approvals that could put your funds at risk.
When you interact with DeFi protocols, you must grant them permission to move your tokens. This permission is called an allowance or approval.
Most protocols request UNLIMITED approvals for convenience. This means:
Not all approvals carry the same risk. Here is how to assess your exposure.
Contract can spend infinite tokens
High value approval to less-known contracts
Approval to contracts you no longer use
Limited approval to verified protocols
Use these trusted tools to view and manage your token approvals.
100+ chains
Ethereum + L2s chains
Choose your preferred tool and follow the steps to revoke dangerous approvals.
Go to the official website
Link MetaMask or other wallet
Choose the blockchain to check
Check all active approvals
Remove risky permissions
Confirm approval is removed
Revoking approvals costs gas. Here are estimated costs per network.
$2-15
1-5 min
$0.01-0.05
< 30 sec
$0.10-0.50
< 1 min
$0.05-0.30
< 1 min
$0.05-0.20
< 30 sec
$0.01-0.10
< 1 min
Revoke approvals during weekends or early morning UTC when gas prices are typically 30-50% lower. Use gas trackers like Etherscan Gas Tracker to find the best times.
Know when to take action to protect your assets.
New protocols carry higher risk of exploits
No need to maintain exposure to unused contracts
NFT contracts often request broad approvals
Regular maintenance prevents forgotten risks
Immediate action needed if you used the protocol
Clean slate before moving significant funds
Follow these guidelines to minimize your risk exposure.
Only approve the exact amount needed for a transaction, not unlimited.
Always read approval requests carefully. Use wallets like Rabby that show risk warnings.
Check your approvals monthly. Set a calendar reminder for regular reviews.
Keep main holdings in a cold wallet. Use hot wallets for DeFi with limited funds.
Only interact with verified contracts. Check if the contract is audited.
Immediately revoke approvals after finishing with a protocol, especially new ones.
After securing your wallet, trade on the world's largest exchange. Get 20% off all trading fees with code TRADEOFF20.
Get 20% OFF on BinanceCommon questions about token allowances and revocation.