Modern web applications depend on APIs to exchange information, process transactions, authenticate users, and connect different services. From banking platforms and e-commerce websites to cloud applications and mobile apps, APIs support many of the digital services people use every day. However, every exposed endpoint can introduce security risks if it is not properly designed, configured, and tested. This is where API penetration testing becomes essential. It is a structured security assessment that helps identify vulnerabilities in API endpoints, authentication mechanisms, authorization controls, data handling, and business logic before attackers can exploit them. Visit: https://cyberwarfare.live/certifications/api-red-team-analyst-api-rta/ Web 2.0: https://justinsimpsonedu.wixsite.com/