APIs handle sensitive data, making security a top priority. We conduct authentication and authorization testing, validating OAuth, JWT, and token-based security mechanisms. Additionally, we perform penetration tests to identify vulnerabilities in API endpoints.

APIs must handle varying levels of traffic efficiently. We simulate multiple concurrent requests, measure response times, and analyze server scalability under heavy loads. This ensures that APIs maintain optimal performance even under peak demand.

Unexpected failures should not break an application. We test API error handling by inducing failures, such as invalid inputs or server unavailability, ensuring proper error messages and fallback mechanisms for a robust system.