UniTokenSwap is a single-chain intent-solving protocol leveraging Dutch auction mechanisms to enable gasless, MEV-protected token swaps. Users sign off-chain orders expressing their swap intent, while competitive fillers execute trades at optimal prices by paying gas on behalf of swappers.
5
DeFi
Ongoing
5
Team Size (Developers)
DeFi
Category (Intent-Solving Protocol)
Ongoing
Project Duration
Execution Summary
Our comprehensive approach to building UniTokenSwap involved advanced blockchain architecture and optimization techniques.
Time-Decay Pricing Mechanism
Built time-decay pricing where orders start at favorable prices and gradually decrease until filled, incentivizing fillers to execute at the best profitable price.
Permit2 Integration
Implemented signature-based token approvals using Uniswap's Permit2 contract, eliminating separate approval transactions and enabling gasless user experiences.
Modular Off-Chain Services
Developed modular off-chain services including API Gateway, Intent Discovery (Redis pub/sub), RFQ quoter system, mempool management, filler execution engine, and real-time WebSocket streaming.
On-Chain Settlement
Deployed on-chain reactors for order validation and settlement, with IReactorCallback interface for custom executor strategies referencing UniswapX contract standards.
Tech Stack:
Web Socket
PostgreSQL
Redis
Ethereum
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