resolver

High-performance intent solver in Rust. Competes across UniswapX, Across, CoW Protocol. 10–100× faster than JS solvers.

The Problem

Intent-based DeFi (ERC-7683) is the future of trading UX — users express what they want, solvers compete to fill it optimally. But:

• All current solvers are TypeScript or Python — too slow for competitive auction environments
• Solvers need to simulate across multiple DEXes and chains in milliseconds
• No open-source Rust solver framework exists — incumbents keep theirs proprietary

A Rust solver is 10-100x faster than JS. Speed wins auctions. Auctions = revenue.

Features

• Multi-protocol — UniswapX, Across, CoW Protocol from one solver
• Fast simulation — route across Uniswap V3, Curve, Balancer in <1ms
• Profitability engine — accounts for gas, priority fees, bridge costs, slippage
• CLI interface — resolver scan, resolver fill, resolver monitor
• Self-sustaining — solver earns fees from every filled intent

Quick Start

git clone https://github.com/kcolbchain/resolver.git
cd resolver

# Scan for fillable intents (read-only)
cargo run -- scan --chain base --protocol uniswapx

# Run solver in simulation mode
cargo run -- solve --simulate --chain arbitrum

# Monitor performance
cargo run -- monitor

Supported Protocols

Revenue Model

Solvers earn fees from filling intents:

• UniswapX — solver captures spread between order price and execution price
• Across — relayer fees for cross-chain fills
• CoW Protocol — surplus from batch auction settlements

No clients needed. No grants needed. Profitable from day one if fill rate is competitive.

Architecture

┌─────────────────────────────────────────────┐
│              Intent Sources                  │
│  (UniswapX, Across, CoW Protocol, custom)   │
├──────────┬──────────┬───────────────────────┤
│ Decoder  │ Simulator│  Profitability Engine  │
│ (parse   │ (route   │  (gas costs, fees,     │
│  orders) │  finding)│   net profit calc)     │
├──────────┴──────────┴───────────────────────┤
│           Execution Engine                   │
│  (build tx, sign, submit, track)            │
├─────────────────────────────────────────────┤
│           Monitor / Dashboard               │
│  (P&L, fill rate, gas spent, win rate)      │
└─────────────────────────────────────────────┘