The key features of a crypto exchange include a secure trading environment, a fast and reliable matching engine, multi-currency wallet integration, user-friendly interface, advanced order types, liquidity management, admin control panel, and built-in KYC/AML compliance tools. These components ensure smooth trading operations, protect user assets, and support platform scalability. A well-structured crypto exchange development approach focuses on performance, security, and regulatory readiness to build user trust and long-term success.