What is Li.Fi?
Li.Fi (pronounced "li-fi") is a multi-bridge and DEX aggregation protocol that simplifies cross-chain transactions by automatically finding the best route across multiple bridges and decentralized exchanges. Rather than operating its own bridge, Li.Fi aggregates liquidity and routes from dozens of bridges including Stargate, Hop, Celer, Connext, Across, and others, along with DEXs like Uniswap, SushiSwap, and 1inch. The protocol's name stands for "Linked Finance," reflecting its mission to connect fragmented DeFi liquidity across chains. Founded in 2021, Li.Fi has become essential infrastructure for cross-chain DeFi, powering the bridging functionality in numerous applications and wallets. The protocol handles route optimization, ensuring users get the best combination of speed, cost, and reliability for their specific transfer. What makes Li.Fi particularly powerful is its ability to combine bridging with swapping in a single transaction. If you want to move ETH from Ethereum to USDC on Arbitrum, Li.Fi can find a route that bridges ETH to Arbitrum and swaps it to USDC in one seamless operation. Li.Fi is integrated into major DeFi applications, wallets, and aggregators, serving as background infrastructure that users often interact with without realizing it.
Key Statistics
| Metric | Value |
|---|---|
| . . . . | . . . - |
| Bridges Aggregated | 15+ protocols |
| DEXs Aggregated | 30+ exchanges |
| Supported Chains | 25+ networks |
| Total Volume | $5B+ cumulative |
| Integrations | 100+ applications |
How Li.Fi Aggregation Works
Li.Fi's routing engine evaluates thousands of potential paths: Input analysis of source/destination tokens and chains, path enumeration generating all possible routes, quote fetching from all relevant bridges and DEXs, route scoring on cost, speed, reliability, and gas efficiency, then optimization selects best route or presents top options.
Supported Bridges and DEXs
Bridge Integrations: Stargate, Hop Protocol, Celer cBridge, Connext, Across Protocol, Hyphen, Synapse, Squid, Allbridge, Circle CCTP, Wormhole, LayerZero, deBridge, Orbiter Finance DEX Integrations: Uniswap, SushiSwap, Curve, Balancer, 1inch, ParaSwap, 0x, Kyber, DODO, Velodrome, Trader Joe, PancakeSwap, GMX Supported Chains: Ethereum, Arbitrum, Optimism, Base, Polygon, Avalanche, BNB Chain, Fantom, Gnosis, zkSync Era, Polygon zkEVM, Linea, Scroll, Celo, Moonbeam, AuroraSecurity Model
No Custody Risk: Li.Fi doesn't hold user funds. Funds flow through underlying bridges and DEXs. Smart Contract Security: Contracts audited by multiple firms including Ackee Blockchain. Bridge Risk Inheritance: Users inherit the security model of whichever bridge their route uses.Fee Structure
| Fee Component | Amount |
|---|---|
| . . . . . . . - | . . . . |
| Li.Fi Fee | 0% (no protocol fee) |
| Bridge Fees | Pass-through from underlying bridge |
| DEX Fees | Pass-through from underlying DEX |
| Gas Costs | User pays source and destination gas |
Risk Considerations
Bridge Risk: Li.Fi routes through various bridges, each with different security models. Smart Contract Risk: Routing contracts add another layer of risk. Approval Risk: Granting token approvals creates potential exposure. Use limited approvals. This content is educational and not financial advice.. -
Want to compare bridge options? Fensory helps navigate cross-chain DeFi.[Get Started with Fensory](https://www.fensory.com)