Aptori is a developer-first, AI-Driven Application and API Security Testing tool. It uses Artificial Intelligence for business logic testing to make the testing process significantly more effective. Aptori uses semantic reasoning technology to generate a semantic model of an application's API. It then autonomously generates and executes API tests, aiming to uncover any business logic flaws in the application to help prevent security vulnerabilities. Aptori's unique offering ensures continuous risk assessment, performance testing, and ultimately releases with higher confidence. It integrates its security testing into every phase of the Software Development Life Cycle (SDLC), ensuring a secure development workflow. The tool is capable of discovering defects in applications before they make it to production. It can reduce the labor-intense task of manually creating and maintaining testing code by using its AI engine to emulate user interactions and devise API test scenarios. Additionally, Aptori actively monitors the security posture of an application across all stages of the SDLC. Through continuous API risk assessment, it ensures that applications and APIs always remain secure and compliant. Aptori uses a semantic graph to analyze an application's APIs behaviour with a goal to uncover business logic defects to prevent application vulnerabilities. All of these functionalities contribute to reducing operational costs and mitigating security risks associated with the applications and APIs.