Hello!
Secure Your APIs. Strengthen Your Digital Backbone.
In today’s interconnected digital world, APIs (Application Programming Interfaces) serve as the core of modern applications enabling communication between web, mobile, and cloud platforms. However, these same APIs often become prime targets for attackers who exploit weak authentication, poor input validation, and misconfigured access controls. A single API vulnerability can expose sensitive data, disrupt operations, and compromise user trust.
PrudentBit’s API Penetration Testing service helps organisations identify and remediate vulnerabilities across their APIs before they can be exploited. Our certified experts simulate real-world attack scenarios to evaluate the security of your REST, SOAP, GraphQL, and other API frameworks ensuring robust protection against modern cyber threats.

What Is API Penetration Testing?
API Penetration Testing is a focused security assessment designed to uncover vulnerabilities in APIs that connect your applications, users, and data. Unlike traditional application testing, API testing focuses on endpoints, authentication mechanisms, request/response handling, and data exchange security.
At PrudentBit, we go beyond automated scanning our experts perform deep manual testing to identify business logic flaws, data exposure risks, and chained vulnerabilities that automated tools often miss.
Our API Testing Approach
Discovery & Mapping
We begin by identifying and mapping all active API endpoints, understanding their purpose, data flow, and authentication mechanisms (OAuth, JWT, API keys, etc.).
Authentication & Authorisation Testing
We assess how APIs handle authentication and role-based access to detect broken access controls, privilege escalation, and token manipulation issues.
Input Validation & Injection Testing
Our experts test for injection attacks (SQL, command, XML, JSON) and improper input handling that could lead to data breaches or system compromise.
Data Exposure & Information Leakage
We identify insecure endpoints or verbose error messages that may expose sensitive data, configuration details, or internal logic.
Rate Limiting & DoS Testing
We evaluate API resilience against brute force and Denial-of-Service attempts, ensuring your APIs can handle unexpected or malicious traffic safely.
Business Logic & Workflow Testing
We simulate misuse of legitimate features to uncover logic-based vulnerabilities that could allow attackers to bypass intended controls or manipulate data flow.
Reporting & Remediation Guidance
You receive a detailed report with each vulnerability ranked by severity, along with practical remediation steps and best practices to fortify your APIs.
Key Benefits
Detect vulnerabilities in authentication, authorization, and data handling
Prevent unauthorized access and data exposure
Ensure compliance with standards such as OWASP, GDPR, and ISO 27001
Strengthen application security across web, mobile, and cloud environments
Build user confidence and maintain business continuity
Why Choose PrudentBit?
Certified Experts
Our testing team includes OSCP and CREST-certified professionals with deep expertise in application and API security.
Comprehensive Manual Testing
We go beyond scanners to uncover logic flaws, token misconfigurations, and chained exploits.
OWASP API Security Top 10 Aligned
Our methodology strictly adheres to the OWASP API Security Top 10 and industry best practices.
Actionable & Developer-Friendly Reports
Clear documentation with technical and business impact details to support remediation.
Post-Remediation Validation
Re-testing included to confirm all vulnerabilities are effectively mitigated.



Who Needs This Service?
Enterprises & SaaS Providers – Relying on APIs for data exchange between services and clients.
Fintech, Healthcare & E-Commerce Companies – Handling sensitive financial or personal information.
Developers & API Integrators – Seeking pre-deployment security validation.
Organizations Adopting Microservices or Cloud Architecture – Ensuring secure inter-service communication.

Fortify Your API Security Today
Your APIs are the backbone of your digital ecosystem make sure they’re protected. With PrudentBit’s API Penetration Testing, you gain assurance that your data, applications, and customers remain secure against emerging threats.

