Exit a blockchain completely - transfer 100% of your native gas balance via EIP-7702
ZeroDust is an intent-based exit system that enables users to sweep their entire native gas token balance to exactly zero via EIP-7702 sponsored execution.
When users want to fully exit a blockchain, they face an impossible situation:
User has: 0.0008 ETH on Arbitrum
User wants: 0 ETH on Arbitrum (transfer everything to Base)
The Problem:
├── To send ETH, you need ETH for gas
├── If you send all your ETH, you can't pay gas
├── If you keep gas, you can't send all your ETH
└── Result: Small amount always stranded
ZeroDust is the only solution that enables complete chain exits for native gas tokens.
- User connects wallet to ZeroDust
- User selects source chain and destination (same-chain or cross-chain)
- User signs ONE authorization (no gas needed)
- ZeroDust sponsor executes the sweep
- User receives funds on destination
- Origin chain balance: EXACTLY ZERO
| Case | Description | Example |
|---|---|---|
| Cross-chain, same address | Exit to yourself on another chain | Arbitrum → Base (same wallet) |
| Cross-chain, different address | Exit to another wallet on another chain | Arbitrum → Base (different wallet) |
| Same-chain, different address | Consolidate to another wallet | Arbitrum → Arbitrum (different wallet) |
Post-Condition (enforced on-chain): Source balance = exactly 0 wei
Contract Address (same on all chains): 0x3732398281d0606aCB7EC1D490dFB0591BE4c4f2
ZeroDust is deployed on 26 mainnet chains with EIP-7702 support:
| Chain | ID | Token | Chain | ID | Token |
|---|---|---|---|---|---|
| Ethereum | 1 | ETH | Sei | 1329 | SEI |
| Optimism | 10 | ETH | Astar zkEVM | 1514 | ETH |
| BSC | 56 | BNB | Soneium | 1868 | ETH |
| Gnosis | 100 | xDAI | Mantle | 5000 | MNT |
| Unichain | 130 | ETH | Kaia | 5330 | KAIA |
| Polygon | 137 | POL | Base | 8453 | ETH |
| Sonic | 146 | S | Plasma | 9745 | XPL |
| X Layer | 196 | OKB | ApeChain | 33139 | APE |
| Fraxtal | 252 | frxETH | Mode | 34443 | ETH |
| World Chain | 480 | ETH | Arbitrum | 42161 | ETH |
| Celo | 42220 | CELO | Redstone | 57073 | ETH |
| BOB | 60808 | ETH | Berachain | 80094 | BERA |
| Scroll | 534352 | ETH | Zora | 7777777 | ETH |
Plus 46 testnets for development.
See contracts/README.md for explorer links.
zerodust/
├── contracts/ # Smart contracts (Foundry)
│ ├── src/
│ │ ├── ZeroDustSweepMainnet.sol # Production contract
│ │ └── ZeroDustSweepTEST.sol # Testnet contract
│ ├── script/
│ │ └── DeployMainnet.s.sol # Mainnet deployment (CREATE2)
│ └── broadcast/ # Deployment logs
└── docs/
┌─────────────────────────────────────────────────────────────┐
│ User's EOA │
│ (EIP-7702 delegated) │
│ │
│ ┌─────────────────────────────────────────────────────┐ │
│ │ ZeroDustSweepMainnet (bytecode) │ │
│ │ │ │
│ │ executeSweep(intent, sig) │ │
│ │ │ │ │
│ │ ┌────────────┴────────────┐ │ │
│ │ ▼ ▼ │ │
│ │ MODE_TRANSFER (0) MODE_CALL (1) │ │
│ │ Same-chain sweep Cross-chain sweep │ │
│ │ │ │ │ │
│ │ ▼ ▼ │ │
│ │ Transfer to Call bridge target │ │
│ │ destination (callTarget + callData) │ │
│ │ │ │ │
│ └─────────────────────────────────────┼────────────────┘ │
│ │ │
└────────────────────────────────────────┼─────────────────────┘
│
▼
┌─────────────────────────┐
│ External Bridge │
│ (Gas.zip) │
│ │
│ Delivers funds on │
│ destination chain │
└─────────────────────────┘
- No admin functions - Immutable after deployment
- No upgradability - What you see is what you get
- Unified SweepIntent - Single signed structure for all sweep types
- Zero balance enforcement - Contract reverts if any balance remains
- ERC-7201 storage - Prevents slot collisions with other EIP-7702 apps
- Immutable sponsors - Stored in bytecode, not storage
Service Fee: 1% of swept value, with $0.05 minimum and $0.50 maximum.
Total Fee = Gas Reimbursement + Service Fee + Bridge Fee (if cross-chain)
Examples:
- $5 balance → $0.05 fee (1% = $0.05, at min) → User receives ~$4.95
- $10 balance → $0.10 fee (1%) → User receives ~$9.90
- $60 balance → $0.50 fee (max) → User receives ~$59.50
- contracts/README.md - Contract details and deployment
- contracts/SPECIFICATION.md - Technical specification
- contracts/DEPLOYMENT.md - Deployment guide
ZeroDust is designed with security as the top priority:
- No fund custody - All operations are atomic, single-transaction
- User-controlled limits - maxTotalFeeWei and minReceive signed by user
- Mandatory simulation - Every transaction simulated before execution
- routeHash binding - Signature bound to specific bridge route (cross-chain)
- Internal security review - 7 rounds, 16 issues identified and fixed
- External audit - Pending (required before full launch)
Smart Contract: Deployed on 26 mainnets + 46 testnets
| Contract | Status | Features |
|---|---|---|
| ZeroDustSweepMainnet | Production | Unified SweepIntent, granular fees, sponsor model |
| ZeroDustSweepTEST | Testnet | Same as mainnet, for testing |
| Chain | Swept | TX |
|---|---|---|
| Base | $3.46 → 0 | View |
| Arbitrum | $3.57 → 0 | View |
| BSC | $2.25 → 0 | View |
| Polygon | $7.55 → 0 | View |
See contracts/README.md for full deployment list.
The following testnets were tested and do not support EIP-7702:
Abstract, Lens, zkSync, Taiko, opBNB, Avalanche, Swell, Cyber, Boba, Metis, Fuse, Aurora, Flare, Vana, Corn, Rootstock, Apechain, IoTeX, Viction, XDC, Telos, Kava, EDU Chain, Gravity, Manta Pacific, Lightlink, Moonbase, Nibiru, Somnia, Rari, Blast, Xai, B3, Mezo, Chiliz, HashKey, Memecore
Note: Mainnet support may differ from testnet.
ZeroDust supports cross-chain sweeps via the MODE_CALL pattern:
- callTarget: Bridge contract address
- callData: Bridge-specific transaction data
- routeHash:
keccak256(callData)- binds signature to specific route
Primary Bridge: Gas.zip - 239+ chains, ~5 second delivery
MIT License - see LICENSE
Production deployed on 26 mainnet chains. Contract: 0x3732398281d0606aCB7EC1D490dFB0591BE4c4f2