Coinbase Launches Built-in DEX Trading in the US, Not Available to New York According to HashiChain News, Coinbase has launched its built-in DEX trading service in the US, but it's not currently available to New York users. Users can conduct on-chain, non-custodial token swaps within the platform's app using liquidity pools from 1inch and 0x. They can also trade the Base network's native token before the official launch.