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EIP-7702 Explained

If DustSweep tells you “this address is already set up for one-click batching with another wallet”, this page explains what that means, why it happens, and what your options are. Short version: it is normal, your funds are fine, and you can always sweep.

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What EIP-7702 is

EIP-7702 lets a regular wallet address (an EOA) be upgraded into a smart account by attaching a small piece of code to it — a pointer to an implementation contract chosen by your wallet. This is what enables features like one-click transaction batching. Four properties explain everything you will ever see:
  1. It lives on-chain, on your address. Any app or wallet can read it.
  2. One delegate at a time. Your address points to exactly one implementation — you cannot be “upgraded by OKX and MetaMask” simultaneously.
  3. Last write wins. Upgrading from another wallet overwrites the previous delegation.
  4. It is per-network. Your address can be upgraded on Base but not on Ethereum, or differently on each.

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Why this affects sweeping

Wallets refuse to batch on top of another wallet’s upgrade — a sensible safety policy. So if you upgraded your account in OKX and later connect the same address in MetaMask, MetaMask will not batch there, and a naive app would just fail confusingly. DustSweep instead detects the situation up front: it reads your address’s code on Base, identifies the delegate against a curated registry of known wallet and infrastructure implementations (MetaMask, OKX, Coinbase/Base, TokenPocket, Trust, Uniswap, Ambire, Bitget, Rainbow, and major infra providers), and routes you accordingly.

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Your options when you see the notice

  • Switch to the wallet that upgraded your account (e.g. OKX) for the one-click experience. DustSweep names it and offers the switch.
  • Continue where you are — Sign & Sweep works on any wallet regardless of delegation, with one signature + one transaction. This is never blocked.
  • Advanced: inside the wallet that owns the upgrade, you can usually revert your account to a plain EOA or re-upgrade it with your preferred wallet. Support for this varies by wallet; treat it as a power-user step.
What cannot happen: an app — DustSweep included — can never change or overwrite your delegation. Only your wallet can sign an account upgrade.
User Safety Note An upgraded account is normal and safe. But the upgrade prompt itself is powerful: only ever approve an account upgrade that your own wallet initiates through its standard UI. Reject any website that directly asks you to “sign an authorization” to upgrade your account — a malicious delegate would control the account.

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FAQ

Is something wrong with my account? No. It was upgraded by a wallet you used — a standard feature, fully reversible through that wallet. Why does DustSweep name a specific wallet (e.g. “OKX Wallet”)? It matched your delegate code against its registry of known implementations. Unknown delegates simply show as unknown, and you proceed with Sign & Sweep. Does delegation give that wallet control over my funds? The delegate code defines extra features for your account; you still authorize every action with your key. Stick to delegates installed by reputable wallets. Can I be upgraded on Base but not elsewhere? Yes — delegation is per-network, which is why DustSweep specifically checks Base.