Cross-chain atomic swap allows users to exchange different cryptocurrencies directly without the need for an intermediary, like a centralized exchange. This process enables individuals to trade assets on separate blockchains securely and efficiently.The key feature of atomic swaps is their reliance on smart contracts. These contracts ensure that both parties fulfill their obligations within a specified time, or else the transaction is canceled and funds are returned. This mechanism prevents either party from cheating or defaulting.To initiate an atomic swap, both parties agree on the terms of the trade, including the amount and the cryptocurrencies involved. Once the conditions are met, the smart contract locks the funds from both sides, enabling the exchange even if one party is on a different blockchain.Overall, cross-chain atomic swaps promote decentralization, reduce reliance on third parties, and enhance privacy, making it a valuable tool for users wishing to exchange assets across different platforms seamlessly.