Paymaster Model

Algorithm

The Paymaster Model, within cryptocurrency derivatives, represents a smart contract-based mechanism for subsidizing transaction fees on behalf of users, particularly relevant in Layer-2 scaling solutions like Optimism and Arbitrum. This functionality is crucial for enabling gasless transactions, improving user experience, and fostering wider adoption of decentralized applications. Implementation relies on pre-approved allowances and delegated call data, allowing a designated entity—the paymaster—to cover gas costs, often in exchange for a service or incentive. Consequently, the model’s efficiency is directly tied to the paymaster’s ability to optimize gas usage and manage associated risks.