Dfyn is a multi-chain AMM DEX that aims to create an interconnected AMM network across different blockchains, allowing for liquidity sharing and cross-chain swaps. The Polygon instance of Dfyn is a gasless exchange where users only need to sign transactions, without any fees passed on to them. With nodes spread across multiple Layer 1 and Layer 2 blockchains, Dfyn acts as a multi-chain DEX, enabling seamless asset trades on various blockchains from a single interface. Dfyn also plans to build a decentralized swap station for non-custodial swapping of major assets like BTC, ETH, and ADA. It is an ultra-fast gasless AMM optimized for the multi-blockchain universe, addressing issues like impermanent loss and providing enhanced trader analytics.