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API Pentest

Safeguard your API endpoints from exploitation and data exposure.

At a glance

  • Endpoint-by-endpoint findings
  • Request and response evidence
  • Risk-rated remediation guidance
  • Developer debrief session

Overview

What is API Pentest?

APIs power modern applications — and they are a prime target. Our API penetration testing examines REST, GraphQL and SOAP endpoints for broken authorisation, excessive data exposure and injection flaws, following the OWASP API Security Top 10.

What’s included

Comprehensive coverage

OWASP API Top 10

BOLA, broken authentication, mass assignment and more.

Authorisation Testing

Object- and function-level access control between users.

REST, GraphQL & SOAP

Coverage for every major API style and protocol.

Rate Limiting & Abuse

Brute force, enumeration and resource exhaustion checks.

Data Exposure

Sensitive data leaking through responses and error messages.

Token & Key Security

JWT, OAuth and API key handling and validation.

Our process

How it works

01

Scoping & Recon

We agree targets, rules of engagement and timing, then map your attack surface.

02

Testing & Exploitation

Certified testers combine automated tooling with deep manual testing.

03

Reporting & Debrief

Risk-rated findings with evidence and clear fixes, walked through live.

04

Remediation & Retest

We retest your fixes and confirm every critical issue is closed.

Deliverables

What you receive

Clear outputs your leadership and technical teams can act on immediately.

  • Endpoint-by-endpoint findings
  • Request and response evidence
  • Risk-rated remediation guidance
  • Developer debrief session
  • Retest of critical findings

Why Cyberior

Security partners, not just vendors

Attacker Mindset

Real-world adversary tactics that uncover what scanners miss.

Evidence, Not Noise

Every finding manually verified and backed by proof.

Clear Reporting

Plain-English summaries for leaders, detail for engineers.

True Partnership

Fixed scopes, direct access to experts, free retesting.

FAQ

Common questions

What do you need from us?

API documentation (OpenAPI/Swagger or Postman collection) and test accounts for each role.

Can you test internal APIs?

Yes — via VPN or a test environment we agree with your team.

How long does it take?

Typically 3–8 days depending on the number of endpoints and roles.

Get started

Ready to get started with API Pentest?

Book a free consultation and we’ll scope the right engagement for your environment and budget.