DeFi Dust Sweeping Guide

Dust = small token balances scattered across wallets and chains that individually aren't worth the gas to move. This guide covers strategies to identify, consolidate, and redeploy dust efficiently.

What Is Dust?

Token Type	Dust Threshold	Why It Exists
ERC-20	< $5 in value	Partial swaps, airdrops, leftovers
Native tokens	< $1	Gas refunds, micro-payments
LP tokens	< $10	Withdrawn positions with dust
Reward tokens	< $5	Unclaimed farming rewards
NFT gas refunds	< $0.50	Failed mint refunds

Dust Detection

Scan All Tokens

import { DustScanner } from '@nirholas/dust-sweeper';

const scanner = new DustScanner({
  wallets: ['0xYourWallet'],
  chains: ['ethereum', 'arbitrum', 'base', 'polygon', 'bsc'],
  dustThreshold: 5.00  // USD value below which = dust
});

const dust = await scanner.scan();
console.log(`Found ${dust.totalTokens} dust tokens worth $${dust.totalValue}`);

Results

{
  "totalTokens": 47,
  "totalValue": 82.50,
  "byChain": {
    "ethereum": { "tokens": 12, "value": 35.00, "gasToSweep": 8.50 },
    "arbitrum": { "tokens": 18, "value": 28.00, "gasToSweep": 0.15 },
    "polygon": { "tokens": 10, "value": 12.00, "gasToSweep": 0.05 },
    "bsc": { "tokens": 7, "value": 7.50, "gasToSweep": 0.08 }
  }
}

Sweep Strategies

1. Gas-Efficient Batch Sweep

const strategy = scanner.calculateStrategy({
  target: 'USDs',              // Convert all dust to USDs
  targetChain: 'arbitrum',     // Consolidate on Arbitrum
  minProfitRatio: 0.7,         // Only sweep if 70%+ profit after gas
  batchSize: 10,               // Batch 10 approvals per tx
  useMulticall: true           // Use Multicall3 for batching
});

2. Same-Chain Consolidation

Strategy	Gas Efficiency	Speed
Multicall batch	★★★★★	Fast
DEX aggregator	★★★★	Fast
1inch Fusion	★★★★★	Slow (gasless)
Individual swaps	★	Fast

3. Cross-Chain Sweep

Polygon dust ($12) → Bridge → Arbitrum
BSC dust ($7.50) → Bridge → Arbitrum
Ethereum dust ($35) → Bridge → Arbitrum
                                  │
                                  ▼
                        Convert to USDs on Arbitrum
                                  │
                                  ▼
                        Hold USDs (earn 5-10% auto-yield)

Profitability Calculator

const analysis = scanner.analyzeProfitability(dust);

analysis.forEach(token => {
  console.log(
    `${token.symbol}: $${token.value} | ` +
    `Gas: $${token.gasToSwap} | ` +
    `Profit: $${token.netProfit} | ` +
    `${token.profitable ? '✅' : '❌'}`
  );
});

Deploy to Yield

After sweeping dust to USDs on Arbitrum:

Option	APY	Risk
Hold USDs	5-10%	Low (auto-rebase)
SPA staking	Variable	Medium
Sperax Farms	10-30%	Medium
Plutus Vaults	15-40%	Medium-High

Automated Dust Sweeping

// Set up automated sweeping
const scheduler = new DustScheduler({
  wallet: '0xYourWallet',
  chains: ['arbitrum', 'polygon', 'bsc'],
  schedule: 'weekly',
  dustThreshold: 5.00,
  target: 'USDs',
  targetChain: 'arbitrum',
  minProfitRatio: 0.7,
  notification: 'telegram'
});

scheduler.start();

Links

• GitHub: https://github.com/nirholas/dust-sweeper
• Sperax USDs: https://app.sperax.io
• Multicall3: https://www.multicall3.com