API Penetration Testing
API penetration testing validates the business logic, authorization model, schema handling, and integration risks behind your product. StealthNet AI combines broad autonomous coverage with senior pentester validation for audit-ready results.
What we test
Comprehensive coverage of the attack surface most relevant to this engagement.
Authentication flaws
JWT weaknesses, token replay, weak session controls, missing MFA protections, and credential stuffing exposure.
Broken authorization
BOLA, IDOR, privilege escalation, tenant isolation failures, and object-level access control bypasses.
Schema abuse
Mass assignment, GraphQL introspection risk, excessive data exposure, weak validation, and unsafe defaults.
Injection paths
SQL, NoSQL, command, template, and server-side request forgery risks across API parameters and payloads.
Protocol coverage
REST, GraphQL, gRPC, WebSocket, and webhook testing across authenticated and unauthenticated flows.
Abuse resistance
Rate limiting, workflow manipulation, race conditions, replay attacks, and sensitive action controls.
How it works
A clear, repeatable process from scope to remediation.
Scoping
Define API hosts, documentation, user roles, test accounts, and sensitive workflows.
Discovery
Map endpoints, schemas, parameters, auth boundaries, and integration paths.
Testing
AI agents probe at scale while senior pentesters validate impact and chain findings.
Reporting
Receive an audit-ready report with evidence, severity, and remediation guidance.
Who it's for
- SaaS teams preparing API-heavy products for SOC 2, ISO 27001, or PCI DSS
- Engineering teams shipping public, partner, mobile, or internal APIs
- Security teams that need defensible coverage of authorization and business logic risk
What's in the report
- Executive summary with API risk posture
- Technical findings with reproducible exploit evidence
- Endpoint, role, and impact mapping
- OWASP API Security Top 10 alignment
- Compliance mapping for SOC 2, PCI DSS, ISO 27001, and HIPAA
- Free retesting on confirmed fixes
Frequently asked questions
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Ready to get started?
Talk to a senior pentester. Scope and SOW in days, testing can start in 24 hours.
Most engagements can start within 24 hours