Across Protocol Official is known for its fast and capital-efficient cross-chain transfers. This is powered by its unique Across Relayer Network and Across Single-Sided Liquidity model. This guide shows you How to use Across Protocol to provide liquidity and earn a share of bridge fees.
Core Concept: Single-Sided Liquidity & Relayers
Unlike traditional bridges that require LPs to deposit both assets of a pair, Across allows LPs to deposit a single asset into a liquidity pool on a specific chain.
Relayers: When a user initiates a transfer, a Relayer fronts the capital on the destination chain.
LP Repayment: The Relayer is then repaid from the liquidity pool on the source chain, plus a small fee.
Liquidity Providers earn a portion of these fees. This design makes the Across Bridge (ACX) incredibly fast and capital-efficient.
Step 1: Choose Your Pool
Navigate to Pools: Go to the "Pools" section on the across.to app.
Select Asset & Network: Choose the asset you want to provide (e.g., USDC) and the network you want to provide it on (e.g., Arbitrum).
Review APY: Examine the estimated Annual Percentage Yield (APY) for the chosen pool.
Step 2: Deposit Liquidity
Connect Wallet: Connect your Web3 wallet.
Enter Amount: Input the amount of USDC you wish to deposit.
Approve & Deposit: First, approve the Across smart contract to spend your USDC. Then, execute the deposit transaction.
You are now a liquidity provider, earning a portion of the Across Protocol Fees generated by bridge volume. Your capital is helping to power one of the fastest bridges in DeFi.
For a full breakdown of the architecture, please refer to https://sites.google.com/verified-web3-portal.com/acrossprotocol/.
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