1Step.app is a blockchain-based copy trading platform that allows users to track the trading activities of "smart money" (i.e., highly profitable or active addresses) on networks such as Ethereum, BNB Chain, and Base, and automatically execute the same operations. Users can discover and subscribe to specific wallet addresses, set copy-trading parameters (e.g., investment ratio, maximum position size), and enable automated trade replication. Its core mechanism relies on on-chain data parsing and smart contract execution to ensure real-time and secure copy trading.