Multi-Call Transaction

Definition ∞ A multi-call transaction bundles several distinct smart contract function calls into a single blockchain transaction. This technique allows for atomic execution of multiple operations, meaning all calls succeed or all fail together, preventing partial state updates. It improves efficiency by reducing gas costs and simplifying complex interactions with decentralized applications. Such transactions are common in DeFi for executing strategies like swapping and lending in one step.
Context ∞ Multi-call transactions are a fundamental component of advanced decentralized finance (DeFi) strategies, enabling users to execute complex financial operations efficiently. The discussion often concerns the potential for reentrancy attacks or other vulnerabilities if not implemented with extreme care, as a single failure can revert the entire bundle. Future developments focus on improving the security and composability of these bundled operations across various protocols. News frequently covers new DeFi platforms that leverage multi-call functionality for enhanced user experience.