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Wallets

Approval Checker

See which apps can still move your tokens, and revoke the ones you don't need.

BNB Chain, Gnosis, Avalanche, Scroll and Linea aren't supported yet — no free data source.

About approvals

  • An approval lets an app or contract move a token from your wallet. It stays active until it's used up or revoked, even if you stopped using the app.
  • Unlimited approvals are convenient, but if the spender is malicious or gets hacked, it can take everything of that token. Be careful with unknown spenders, and especially with spenders that are plain wallets (EOAs) — that's a common phishing pattern.
  • NFT approvals ("approve all") cover every item in a collection.
  • Permit2 keeps its own allowances per app. Approving a token to Permit2 is listed separately from the Permit2 allowances themselves.
  • Revoking is an on-chain transaction from the owner's wallet, so it costs a little gas.

Privacy: the address you enter is sent to Blockscout and the chain's public RPC to read public on-chain data. Nothing is stored.