How to check wallet permissions on Revoke.cash? (Security audit)

Understanding Wallet Permissions on Revoke.cash

1. Revoke.cash is a widely used blockchain security tool that allows users to inspect and revoke smart contract approvals granted by their Ethereum or EVM-compatible wallets.

2. Every time a user connects a wallet to a decentralized application, they may inadvertently approve token allowances—giving dApps permission to spend specific tokens on their behalf.

3. These permissions persist unless manually revoked, creating long-term exposure to malicious or compromised contracts.

4. Revoke.cash aggregates on-chain approval data using public blockchain explorers and indexed transaction logs to display active allowances in real time.

5. The interface does not require wallet connection to view permissions—users can input their wallet address directly and receive an immediate report of all known approvals.

Navigating the Revoke.cash Interface

1. Visit revoke.cash in a modern browser with no ad blockers interfering with script execution.

2. Paste your wallet address into the search bar located at the top center of the homepage.

3. Click the magnifying glass icon or press Enter to initiate the scan across Ethereum, Polygon, Arbitrum, Optimism, and other supported chains.

4. Results appear as a sortable table listing each approved contract address, token symbol, allowance amount, and timestamp of approval.

5. Each row includes a red “Revoke” button next to high-risk or unknown contracts—clicking it triggers a transaction through your connected wallet.

Interpreting Approval Risk Levels

1. Revoke.cash assigns visual risk indicators: red for suspicious contracts, yellow for outdated or low-liquidity protocols, and green for well-audited, high-traffic applications.

2. Contracts flagged as “Unverified Source Code” should be treated with extreme caution—even if the dApp appears legitimate.

3. Approvals showing “Infinite Allowance” indicate maximum transfer rights granted to the contract, which is rarely necessary for normal usage.

4. Historical transaction analysis reveals whether the same contract has been involved in prior exploits or has undergone multiple ownership transfers.

5. Token-specific rows show whether the allowance covers stablecoins, governance tokens, or wrapped assets—each carrying distinct threat profiles.

Executing Permission Revocation Safely

1. Before initiating any revocation, ensure your wallet is connected via WalletConnect or MetaMask with sufficient native gas tokens on the target chain.

2. Confirm that the displayed contract address matches the one you intend to revoke—copy-paste verification prevents accidental interaction with lookalike addresses.

3. Review the estimated gas fee shown beside each “Revoke” button; unusually high values may signal network congestion or misconfigured contract logic.

4. After signing the transaction, monitor its status on Etherscan or equivalent block explorer using the provided transaction hash.

5. Wait for at least two confirmations before assuming the allowance has been removed—some contracts require additional on-chain settlement steps.

Frequently Asked Questions

Q: Does Revoke.cash store my private keys or wallet data?A: No. Revoke.cash operates client-side and never accesses or retains private keys, seed phrases, or sensitive wallet information.

Q: Can I check permissions for wallets on non-Ethereum chains like Solana or Cardano?A: Not currently. Revoke.cash supports only EVM-compatible networks including BSC, Avalanche C-Chain, and Base.

Q: Why do some approvals show “0x000…000” as the spender address?A: This typically indicates a failed or incomplete approval event captured during indexing—treat such entries as invalid but verify via manual blockchain inspection.

Q: Is it safe to revoke approvals for DeFi protocols I actively use?A: Yes, but only after confirming the protocol’s current interface does not require those allowances—for example, Uniswap v3 uses permit2 instead of legacy ERC-20 approvals.