O3 Swap is the first cross-chain aggregation protocol that enables free trading of native assets between heterogeneous chains, by deploying "aggregator + asset cross-chain pool" on different public chains and Layer2, provides users to enable cross-chain transactions with one click. Currently, it has access to Heco, ETH, BSC, Neo, and will expand to Polkadot, Polygon, and other ecosystems in the future....