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API SECURITY

API Penetration Testing Services

GANASEC tests APIs the way attackers use them: by manipulating object identifiers, roles, tokens, workflows, rate limits, and trust boundaries. We assess REST APIs, GraphQL APIs, mobile backends, partner APIs, internal APIs, and microservice-facing endpoints.

Global deliveryRemote-first assessments across SaaS, cloud, enterprise, and regulated environments.
ISO certifiedA disciplined security program behind the work, kept quiet but available for procurement.
Operator validationExploit proof and business-impact analysis from offensive security specialists.
Retest includedClear remediation guidance followed by validation evidence after engineering fixes.
APPROACH

What gets validated.

API risk is often about authorization and abuse rather than obvious injection. We look for broken object-level authorization, excessive data exposure, weak JWT validation, OAuth implementation mistakes, endpoint discovery gaps, mass assignment, business workflow abuse, rate-limit bypasses, and GraphQL resolver issues. Reports include exact requests, expected behavior, observed behavior, and remediation guidance engineers can act on quickly.

01

OWASP API Top 10 coverage

02

Broken object-level and function-level authorization

03

JWT, OAuth, API key, and session token review

04

GraphQL introspection, batching, resolver, and query abuse testing

05

Rate-limit, replay, workflow, and automation abuse checks

06

Mass assignment, excessive data exposure, and endpoint discovery

ENGAGEMENT MODEL

Built for global buyers and engineering teams.

GANASEC keeps the process easy for international clients: clear scoping, remote execution, procurement-friendly documentation, and remediation support that engineering teams can use immediately.

01

Scope

Confirm assets, accounts, rules of engagement, timelines, and business-critical workflows.

02

Test

Run controlled manual testing with tooling support, evidence capture, and risk validation.

03

Report

Deliver executive summary, technical findings, reproduction steps, and prioritized remediation.

04

Retest

Validate fixes and provide closure notes suitable for audit, customer assurance, and internal risk tracking.

OUTPUT

Audit Ready reports

[ ✓ ]

Reproducible API requests and payloads

[ ✓ ]

Postman or curl-ready evidence where useful

[ ✓ ]

Authorization matrix observations

[ ✓ ]

Risk-ranked findings and remediation guidance

[ ✓ ]

Retest validation

RELATED SERVICES

Connected services.

FAQ

API Penetration Testing questions.

What APIs can GANASEC test?

GANASEC tests REST, GraphQL, mobile-backend, partner, internal, and microservice APIs.

Do you test API authorization?

Yes. Object-level authorization, role boundaries, tenant isolation, and function-level authorization are central to the assessment.

Can you test authenticated APIs?

Yes. We can test with multiple roles, organizations, tenants, and user states to validate real access-control behavior.