Description: Atomic Finance is a fundamental concept within the realm of Decentralized Finance (DeFi) that enables secure transactions without the need for trust between the parties involved. This approach is based on smart contracts, which are self-executing programs that run on a blockchain. The main feature of Atomic Finance is that it ensures transactions are completed in full or not at all, thus eliminating the risk of default by any of the participants. This is achieved through a technique known as ‘Atomic Swap’, which allows direct exchanges of assets between different blockchains without the need for intermediaries. This mechanism not only enhances the security of transactions but also promotes transparency and efficiency in the financial ecosystem. In an environment where trust in third parties can be a barrier, Atomic Finance offers an innovative solution that fosters user autonomy and decentralization, fundamental pillars of the DeFi philosophy. As the DeFi ecosystem continues to evolve, Atomic Finance is positioned as a key tool to facilitate interoperability and liquidity among different platforms and digital assets.