UniswapX is a permissionless, open source (GPL), auction-based protocol for trading across AMMs and other liquidity sources.
As of June 2026, UniswapX is available on Uniswap interfaces for the following chains:
- Ethereum Mainnet
- Avalanche
- Base
- BNB Smart Chain
- Tempo
UniswapX can save swappers money in the following ways:
- Better prices by aggregating liquidity sources
- Swapping without network costs
- Protection against MEV attacks (front-running)
- No network costs for failed transactions
To learn more about UniswapX:
- Review the code here
- Read the full whitepaper here
- Read the announcement blog post here