What is an ERC-20 token approval on Polygon PoS?

When interacting with DApps like QuickSwap or Uniswap, smart contracts request permission via approve(spender, amount) to spend tokens on your behalf. Many DApps request unlimited approvals for convenience, leaving your balance exposed if the spender contract is ever compromised.

How does 1-click token approval revocation work?

Revoking sets the contract allowance to zero by sending an approve(spender, 0) transaction (function selector 0x095ea7b3). Once confirmed on Polygon PoS, the spender can no longer withdraw tokens from your wallet.

Token Approval & Allowance Revoke Manager

Revoke Parity

Audit active ERC-20 token allowances, evaluate wallet exposure risk, and 1-click revoke unauthorized or unlimited spenders on Polygon PoS.

Polygon PoS Wallet Address

Try sample accounts:

Wallet Security Score

60 / 100 Needs Attention

Based on spender verification & unlimited scopes

Active Approvals

5 contracts

Tokens with delegated spending permissions

Unlimited Allowances

4 tokens Risk Exposure

Contracts authorized to spend maximum balance

Total Value at Risk

$7,675.00

Estimated USD vulnerable to potential exploit

Active Token Allowances & Spend Authorization 5 Detected

Revoke any spender to eliminate risk and set allowance to 0

Token Asset	Authorized Spender	Allowance Limit	Exposure USD	Security Level	Action

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Why Unlimited Allowances?

When swapping on DEXs, protocols ask for 2^256 - 1 approval so you don't have to approve on every trade. However, if that smart contract has a vulnerability, attackers can drain your wallet balance without requiring your signature.

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Zero Allowance Revoke

Revocation calls standard ERC-20 approve(spender, 0) with selector 0x095ea7b3. This completely closes the spending door on Polygon PoS.

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Ultra-Low Gas on Polygon

Unlike Ethereum Mainnet where revoking an approval can cost $5 to $20 in gas, Polygon PoS transactions cost a fraction of a cent (~$0.005), making routine wallet hygiene inexpensive and effortless.