API
IntermediateAn API (Application Programming Interface) is a set of rules that allows different software systems to communicate with each other. In crypto, APIs connect wallets, exchanges, trading bots, and DeFi applications. For example, a trading bot might use an exchange’s API to place orders automatically. APIs are also used in DeFi applications to access blockchain data or initiate transactions. They improve automation, efficiency, and integration. Secure authentication and proper design are critical when using APIs to protect funds and user data.