A cross-chain dust aggregator that allows users to bundle small token amounts ("dust") across multiple chains and sell them efficiently through an intent-based marketplace.

1. Dust Detection: Users connect their wallets to scan for small token balances (<$50) across multiple chains
2. Cross-Chain Aggregation: Using LayerZero OFT (Omnichain Fungible Tokens), dust tokens are transferred with compose messages to create unified auctions
3. Marketplace Settlement: Orders are automatically created on the marketplace chain (Arbitrum Sepolia) when tokens arrive
4. Solver Network: Market makers can fill orders with USDC, providing competitive pricing
5. Cross-Chain Settlement: Proceeds are delivered to users on their preferred chain using Circle CCTP for USDC transfers

The system uses a single DustMarketplace contract that implements LayerZero's IOAppComposer interface. When OFT tokens arrive with compose messages, auctions are automatically created. Solvers can fill orders, and proceeds are settled either locally or cross-chain via CCTP.

• LayerZero V2: Cross-chain messaging and OFT token transfers
• LayerZero Compose: Automatic auction creation from token transfers
• Circle CCTP: Cross-chain USDC settlement
• Solidity: Smart contract development

• Next.js 14: React framework with App Router
• Dynamic: Wallet authentication and connection
• Viem + Wagmi: Ethereum interaction
• Tailwind CSS + Shadcn/ui: UI components

• Arbitrum Sepolia: Marketplace hub
• Ethereum Sepolia: Primary dust source
• Optimism Sepolia: Additional dust source
• Base Sepolia: Additional dust source

• One-Click Aggregation: Bundle dust from multiple chains in a single transaction
• Intent-Based Pricing: Choose between instant fills or auction-based discovery
• Cross-Chain Settlement: Receive USDC on any supported chain
• Gas Optimization: Efficient batching and L2-focused design
• Solver Network: Independent, competitive market making for best prices