🚇 Best Rate Tunnel (BRT)
The Best Rate Tunnel (BRT) is the core routing algorithm behind UtopiaSwap. It's responsible for determining the most cost-effective, optimized path for every token swap by aggregating liquidity from multiple on-chain sources.
BRT ensures that users always receive the best possible rate, even in volatile or low-liquidity environments, by scanning and evaluating multiple DEXs in real-time.
🧠 What is BRT?
BRT is a real-time, chain-specific routing engine that:
- Queries multiple decentralized exchanges (DEXs) simultaneously
- Considers slippage, fees, gas costs, and route depth
- Selects the optimal path (single hop or multi-hop)
- Executes via UtopiaSwap’s modular smart contracts
It acts as a dynamic liquidity router rather than relying on a single protocol.
🔍 How It Works
- User selects tokens + chain
- BRT identifies possible liquidity sources:
- Uniswap
- Balancer
- SushiSwap
- PancakeSwap
- Others (based on chain)
- Simulates potential swap routes:
- Direct swap (Token A → Token B)
- Multi-hop swap (A → WETH → B)
- Split routes (if enabled in future versions)
- Calculates effective return:
- Adjusts for slippage, liquidity depth, gas cost
- Selects best route and sends instruction to smart contract layer
- Executes transaction, and user receives tokens directly
⚙️ Components of BRT
| Component | Description |
|---|---|
| Route Simulator | Simulates all viable swap paths in real time |
| Slippage Optimizer | Calculates expected return after slippage and liquidity impact |
| Gas Estimator | Compares gas costs across routing options to avoid expensive paths |
| Protocol Adapter Layer | Allows BRT to interact with external DEX contracts uniformly |
| Result Scorer | Scores each path based on net output, reliability, and execution success |
📊 Example
Imagine a user wants to swap USDC → ETH on Polygon:
- BRT detects 3 options:
- Uniswap: 0.087 ETH
- Balancer: 0.086 ETH
- SushiSwap (via WETH): 0.088 ETH (but high gas)
- After accounting for gas and slippage, BRT selects Uniswap for optimal execution.
🔒 Why It Matters
- User-first routing: Always maximizes value returned to the user
- Cross-chain capable: BRT logic runs per-chain but shares architecture
- Extensible: New protocols or chains can be added without rewriting routing logic
🛣 Future Upgrades
- Multi-DEX split routes: Combine multiple sources for better rates
- Cross-chain aggregation: Bridge-aware routing in future versions
- Private order flow / MEV resistance: Enhance protection against front-running
The Best Rate Tunnel is what makes UtopiaSwap not just another DEX aggregator — but a smart, adaptive liquidity layer across chains.