APIs are the digital gateways that connect your applications, users, and data. When not properly secured, they can expose sensitive information or allow unauthorized actions that put your entire system at risk.
Our API Penetration Testing service takes a practical approach, mapping every exposed endpoint, replaying and manipulating requests, and validating how your APIs handle authentication, authorization, and data flow under real attack conditions. Following the OWASP API Security Top 10, we combine automated analysis with targeted manual testing to uncover flaws that traditional scanners overlook.
Endpoint Discovery
Authentication & Authorization
Input Validation
Business Logic Testing
Data Exposure Review
Automated & Manual Fuzzing
Transport Security
Configuration & Error Handling
Define objectives, scope, and constraints, aligning expectations, testing approach, and deliverables during a structured kick-off meeting.
Gather information about exposed endpoints, authentication methods, and technologies through passive research and active discovery for a complete API surface map.
Combine automated scans with manual verification to uncover misconfigurations, injection flaws, and logic vulnerabilities, following OWASP API Security Top 10 principles.
Safely validate confirmed weaknesses with proof-of-concept attacks to demonstrate real business impact without disrupting production systems.
Deliver a detailed report including an executive summary, scope, methodology, prioritized findings with PoCs, risk ratings, and actionable remediation, followed by a restitution meeting.
Ensure all identified vulnerabilities have been properly fixed without introducing new risks.
APIs often expose far more than intended, from sensitive data to hidden business logic. Attackers target these weaknesses to gain unauthorized access, pivot inside systems, or exfiltrate information. This assessment identifies and validates these risks before they can be exploited.
Duration depends on API size and complexity:
Testing is safe and non-destructive. For production environments, test windows are coordinated to minimize impact. Potentially disruptive actions are performed only with prior agreement.
