As crypto moves beyond retail and into the hands of institutions, even leaders like the 47th U.S. President, Donald Trump, are advocating for national adoption. But convenience often masks hidden risks.
Each time you interact with a decentralized app (dApp) — whether it’s swapping tokens or minting NFTs — you permit it to access your assets. Most dApps request unlimited token spending permissions from users’ wallets to reduce friction and improve the user experience. These token approvals often remain active, making your wallet vulnerable to malicious smart contracts.
That’s where Revokescout (https://revoke.blockscout.com/) comes in. Built by Blockscout, this free, open-source tool lets you easily review and revoke these permissions. Whether you’re managing DeFi positions or NFTs, Revokescout helps you take back control of your wallet security without hassle.
Revokescout is a wallet permission checker built on top of Blockscout’s blockchain explorer infrastructure. You can view token and NFT approvals without logging in, and only connect your wallet when you’re ready to revoke them.
With support for major EVM chains like Ethereum, Polygon, Arbitrum, Optimism, Base, and Gnosis (29 chains, in total), it’s your one-stop solution to managing smart contract access across multiple networks. Revokescout is a powerful token approval checker and NFT approval manager that lets you instantly remove token approvals and stay ahead of threats.
Once you’ve given permission to a smart contract, that access usually stays in place until you manually remove it. This means an old dApp or NFT project you interacted with months/years ago could still move tokens from your wallet if exploited.
By using Revokescout to revoke those permissions, you minimize the risk of:
Token drainers that exploit token allowances
Phishing exploits targeting permissions
Rogue smart contracts with malicious backdoors
Many hacks in the DeFi and NFT space occur because users forget to revoke approvals. Revoking is a form of wallet hygiene, just like regularly updating your passwords in Web2.
Think of it as part of your regular Web3 hygiene.
Revoke token approvals, protect crypto assets, and take back your control.
Here’s a quick guide to revoking smart contract access using Revokescout:
2. Paste your wallet address into the search bar to view approvals
3. Switch to the desired network
4. Browse the list of active approvals (tokens & NFTs)
5. Click “Revoke” on permissions
6. Confirm the transaction in your wallet (MetaMask, Rabby, etc.)
You can revoke unlimited token approvals, NFT permissions, and dApp allowances with no fee from Revokescout itself. You only pay for the gas needed to send the revoke transaction.
Multi-chain support: Supports 29 blockchains including Ethereum, Polygon, Arbitrum, Base, Optimism, and Gnosis — making it easy to manage token permissions across all your EVM-compatible wallets in one place. More chains are coming!
Supports ERC-20, ERC-721, and ERC-1155 tokens: Works seamlessly with both fungible tokens and NFTs, giving you full visibility and control over any asset type.
Clear UI for managing permissions quickly: The intuitive interface highlights risky approvals and makes it easy to filter and take action in just a few clicks.
Free and open-source: Built and maintained by Blockscout, Revokescout is 100% free to use, with no ads, no tracking, and full transparency through open-source development.
Revokescout is also ideal for developers and auditors who want a transparent view of wallet risks with minimal friction — permissions can be reviewed instantly without login, and wallet connection is only required to perform revocations.
Revokescout is designed to serve a wide range of blockchain users as a free, open-source, fast, and efficient token approval checker. As Web3 adoption accelerates, it continues to evolve to meet growing network demands and user expectations — positioning itself as an essential security tool for all types of crypto participants.
Here are some key groups who will benefit most from using Revokescout:
DeFi users interact with DEXs and yield farms, which frequently approve smart contracts and need to clean up permissions regularly to avoid unnecessary exposure.
NFT collectors using marketplaces like OpenSea, Blur, or Magic Eden, where every listing or interaction might leave behind open token approvals vulnerable to misuse.
Crypto investors looking to reduce wallet exposure, especially those holding assets long-term, and wanting tighter control over who has access to their tokens.
Web3 developers doing audits or risk assessments, who benefit from quickly scanning wallet permissions across multiple chains to verify security hygiene or identify high-risk dApps.
The best way to stay safe in Web3 is to turn security into a habit.
Bookmark Revokescout: The tool should be accessed quickly once you need it
Morning Security Ritual: Check Revokescout right after you scan the markets or check your wallet balance.
After Minting or Swapping: Just minted an NFT or swapped tokens? Follow up by reviewing what permissions you just granted.
Monitor Approvals by Chain: Rotate through Ethereum, Base, Arbitrum, and others daily or weekly.
Weekly Deep Clean: Spend one day a week fully revoking anything unused if you can’t do it daily.Web3 Security Best Practices
Eliminate excessive or unlimited token approvals: Still overwhelmed? You can focus on revoking the approvals that ask for unlimited/excessive access to your tokens whenever you can
Staying safe in Web3 doesn’t have to be complicated. Revokescout gives you the power to quickly revoke approvals, reclaim wallet control, and protect your crypto assets across chains. Bookmark it, use it regularly, and share it with your community.
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