Salty

Salty is an automated market maker exchange on Ethereum that replaces trading fees with automatic atomic arbitrage: each user swap carries a circular arbitrage search and execution inside the same transaction, capturing price gaps between pools so the user trades at zero fee.

Arbitrage profit splits three ways: a share to liquidity providers and SALT stakers by weight, a share that accrues as protocol-owned liquidity, and the remainder for upkeep. The protocol also issues USDS, an overcollateralised stablecoin backed by WBTC and WETH liquidity claims, with prices cross-checked across Chainlink, a Uniswap V3 time-weighted average and internal reserves so a divergence trips a circuit breaker. All parameters, regional restrictions and contract upgrades sit with the DAO, and the code was audited by Trail of Bits, ABDK and Code4rena.