API Security Testing Services
Manual API penetration testing aligned with the OWASP API Security Top 10. Identify broken authentication, authorization, and data exposure flaws.
Why APIs Have Become a Primary Target for Attackers
APIs power the connections between your applications, partners, and customers, which makes them an attractive target for attackers looking for a direct path to your data. Many of the most damaging breaches in recent years started with a broken API endpoint that exposed data it should never have returned. API security testing services examine how your endpoints handle authentication, authorization, and data, the same areas attackers focus on first.
What API Security Testing Protects You From
Prevent Unauthorized Data Access
Prevent broken object level authorization issues that expose other users' data
Our API Security Testing Process
Our testers map your API surface in detail before manually testing each endpoint for the access control and logic issues that automated API scanners consistently miss.
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API discovery and documentation review to map all endpoints and parameters
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Authentication testing across all supported methods, including token-based authentication
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Authorization testing to identify broken object level and function level access controls
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Input validation testing for injection flaws across all parameters and headers
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Business logic and rate limiting testing to identify abuse and automation risks
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Data exposure analysis to confirm responses do not leak excessive information
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Reporting with endpoint-level findings, proof-of-concept requests, and remediation steps
Ready to Put Your Defenses to the Test?
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API Security Testing Services We Provide
REST API Penetration Testing
Comprehensive manual testing of REST API endpoints for authentication, authorization, and data exposure vulnerabilities.
GraphQL Security Testing
Assessment of GraphQL schemas and resolvers for over-fetching, injection risks, and improper access controls.
Third-Party and Partner API Testing
Testing of APIs exposed to partners and vendors to ensure external integrations do not introduce unacceptable risk.
API Authentication and Token Security Review
In-depth review of how API keys, JWTs, and OAuth tokens are issued, validated, and revoked.
PlutoSec API Security Testing Services
Manual Testing Where Automated API Scanners Fall Short
Automated API scanners are good at flagging missing security headers, but they cannot tell whether one user can access another user's data through a poorly designed endpoint. That kind of finding requires a tester who understands the business logic behind the API. PlutoSec's testers manually work through your API surface using the OWASP API Security Top 10 as a framework, delivering findings that reflect real risk to your data and your customers.