Identify vulnerabilities in your APIs before attackers do — covering OWASP API Security Top 10, authentication bypass, authorization flaws, business logic abuse, and data exposure risks.
APIs are the new perimeter. As organizations shift to API-first architectures, the attack surface has moved from web forms to API endpoints. We conduct deep, methodology-driven API security assessments that go beyond automated scanning — testing business logic, authorization models, rate limiting, and data exposure across REST, GraphQL, gRPC, and SOAP interfaces.
APIs power modern applications — mobile backends, microservices, partner integrations, and IoT platforms. But APIs also expose business logic, sensitive data, and backend systems in ways that traditional web applications don't. Broken object-level authorization, excessive data exposure, and mass assignment vulnerabilities are API-specific risks that web application scanners rarely detect.
Our API security testing combines automated tooling with manual expert analysis. We map your API attack surface, test authentication and authorization mechanisms across every endpoint, probe for business logic flaws, validate input handling, and assess rate limiting and abuse prevention — producing findings that your development team can act on immediately.
Systematic testing against all OWASP API Security Top 10 risks — BOLA, broken authentication, excessive data exposure, lack of resources/rate limiting, BFLA, mass assignment, security misconfiguration, injection, improper asset management, and server-side request forgery.
Deep testing of your API authentication mechanisms (OAuth 2.0, JWT, API keys, mTLS) and authorization models — including BOLA, BFLA, privilege escalation, token manipulation, and session management vulnerabilities.
Manual testing of API business logic — workflow bypass, parameter manipulation, race conditions, and abuse scenarios that automated tools cannot detect. We think like attackers, not scanners.
Specialized testing for GraphQL APIs — introspection exposure, query depth/complexity attacks, authorization bypass on nested resolvers, batch query abuse, and information disclosure through error messages.
Automated and manual fuzzing of API endpoints — testing input validation, error handling, type confusion, boundary conditions, and injection vulnerabilities across all parameter types.
Evaluate your API gateway configuration, authentication architecture, rate limiting strategy, logging/monitoring, and API lifecycle management — identifying design-level weaknesses beyond individual endpoint vulnerabilities.
Discover BOLA, BFLA, excessive data exposure, and other API-specific risks that web application scanners and traditional penetration tests typically miss.
Identify abuse scenarios where attackers manipulate API workflows to bypass controls, escalate privileges, or extract data — the highest-impact API vulnerabilities.
API security testing satisfies the application security testing requirements of PCI DSS Requirement 6, ISO 27001, SOC 2, and other frameworks.
We provide findings in developer-friendly formats with reproduction steps and remediation guidance — enabling your team to fix issues in the current sprint.
Identify endpoints that return excessive data, expose internal identifiers, or leak sensitive information through error messages — before attackers find them.
Validate the security of APIs exposed to partners, third parties, and mobile applications — ensuring external access points don't become attack vectors.
Our testers specialize in API security — REST, GraphQL, gRPC, WebSocket, and SOAP. We understand modern API architectures, not just web applications with JSON responses.
We combine automated scanning and fuzzing with deep manual testing of business logic, authorization, and workflow abuse — finding the vulnerabilities that tools alone cannot.
Every finding includes API request/response evidence, reproduction steps, and specific remediation guidance — enabling your development team to fix issues without back-and-forth clarification.
Contact us to discuss your requirements and get a tailored engagement plan.
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