API Security Testing evaluates the security posture of application programming interfaces (APIs) that enable communication between applications, mobile apps, third-party systems, and microservices. The assessment focuses on authentication, authorization, token handling, input validation, rate limiting, error handling, and business logic enforcement.
Testing simulates real-world attack scenarios such as broken object-level authorization, mass assignment, data overexposure, and API abuse. The assessment is performed in alignment with OWASP API Security Top 10, CERT-In guidelines, and CREST testing methodologies.