API Pentest Testing Services

API Penetration Testing for REST and GraphQL

Our API penetration testing covers OWASP API Top 10 issues, including BOLA testing and BFLA testing, plus JWT/OAuth security and rate-limit abuse.

Engagements start from $5,000+. Pricing depends on endpoint count, auth roles and authorization depth (BOLA/BFLA), third-party integrations (payments/webhooks), and test environments (staging vs production).
Get a Fixed-Price Quote
Book a 15-Minute Scoping Call
Download Sample Report

Why API Penetration Testing is Essential

APIs are the backbone of modern applications, enabling seamless communication and data exchange. However, they also introduce unique security challenges. Without proper security measures, APIs can become entry points for attackers, leading to data breaches, unauthorized access, and significant financial losses. Our API pentest testing services help you identify and address these vulnerabilities before they can be exploited. By leveraging our API pentest testing services, you can ensure your APIs are robust and secure. Choose our API pentest testing services to protect your business from potential threats and safeguard your data.

OWASP API Top 10 Coverage

Discovery and Enumeration

1. Comprehensive mapping of your API endpoints.

2.Identification of potential entry points and attack vectors.

Vulnerability Assessment

1. In-depth analysis of your API’s security posture.

2. Detection of common vulnerabilities such as injection flaws, broken authentication, and insecure data storage.

Exploitation

1. Simulation of real-world attack scenarios.

2. Safe and controlled exploitation of identified vulnerabilities to assess their impact.

Reporting and Remediation

1. Detailed reports outlining vulnerabilities, risk levels, and recommended remediation steps.

2. Collaboration with your development team to ensure effective mitigation of identified issues.

Benefits of Our API Penetration Testing Services

Enhanced Security Posture

1. Proactively identify and address security weaknesses in your APIs.

2. Protect sensitive data and maintain the trust of your customers.

Regulatory Compliance

1. Ensure compliance with industry regulations and standards such as GDPR, HIPAA, and PCI DSS.

2. Avoid costly fines and legal repercussions associated with non-compliance.

Improved Business Continuity

1. Minimize the risk of downtime and service disruptions caused by security incidents.

2. Maintain the integrity and availability of your applications.

Expert Insights

1. Gain valuable insights from our team of experienced security professionals.

2. Leverage our expertise to enhance your overall security strategy.

Why Choose Pentest Testing Services

Expertise and Experience

  • Our team comprises seasoned security professionals with extensive experience in API penetration testing.
  • We stay updated with the latest threats and vulnerabilities to provide you with cutting-edge security solutions.

Customized Approach

  • We tailor our testing approach to meet the specific needs of your business.
  • Our flexible engagement models ensure that we align with your security requirements and budget.

Actionable Insights

  • Our detailed reports offer practical recommendations to enhance your API security.
  • We prioritize vulnerabilities based on their risk levels, helping you focus on critical issues first.

Comprehensive Coverage

  • Our testing covers a wide range of API security aspects, from authentication and authorization to data validation and error handling.
  • We provide a holistic view of your API’s security posture.

API Penetration Testing Services

Detailed Test Overview

1. Authentication Testing

-Credential Stuffing.
-Weak Password Policy Enforcement.
-Token Security.
-Multi-Factor Authentication (MFA).

2. Authorization Testing.

-Access Control Testing.
-Privilege Escalation Testing.
-API Endpoint Security.
-Multi-Layered Access Control Testing.

3. Input Validation and Output Encoding.

-SQL Injection.
-NoSQL Injection.
-LDAP Injection.
-Command Injection.
-Cross-Site Scripting (XSS).
-Input Sanitization and Output Encoding.

4. Session Management Testing.

-Session Hijacking.
-Session Timeout Testing.
-Session Fixation.
-Concurrent Session Handling.
-Session Token Security.

5. Rate Limiting and Throttling

-DoS and DDoS Attack Mitigation.
-Rate Limiting Bypass.
-Quota Management.

6. Data Validation and Handling.

-Input Sanitization
-Boundary Value Analysis.
-Data Exposure.

7. Error Handling and Logging.

-Error Message Evaluation.
-Logging Practices.

8. Transport Layer Security (TLS) and Encryption.

-TLS/SSL Configuration.
-Certificate Management.
-Weak Cipher Suites.

9. Business Logic Testing.

-Workflow Validation.
-Process Manipulation.

10. API Endpoint Security.

-Endpoint Enumeration.
-Method Security.
-Endpoint Protection.

11. Static and Dynamic Analysis.

-Static Code Analysis.
-Dynamic Analysis.

12. Insecure Direct Object References (IDOR).

-Object Access Control.

13. Cross-Site Request Forgery (CSRF).

-CSRF Protection.

14. API Security Configuration.

-Security Headers.
-CORS Configuration.

15. API Documentation and Security.

-API Documentation Review.
-Security Best Practices.

16. Third-Party Integrations.

-Third-Party API Security.
-Dependency Management.

⭐ What Our Clients Say

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See More Client Results

Want to read more verified feedback and real-world outcomes from our engagements?
Explore our dedicated Testimonials page for detailed success stories across web, mobile, cloud, and AI app security.

Discover the Ideal API Pentest Testing Services

Our API Pentest Testing Services offer flexible pricing plans to fit various needs and budgets. Secure your APIs with our expert services tailored to your requirements.

Enterprise (Complex Workflows)

From $18,000+

For large APIs, multiple environments, complex workflows, or GraphQL/event-driven systems.

Everything in Professional
GraphQL/event-driven API abuse paths (if in scope)
Advanced attack chaining across services
Two retest cycles within an agreed window
Executive debrief + remediation workshop
Talk to an Expert

Professional (SaaS API / Multi-Role)

From $9,500+

Ideal for multi-role APIs with sensitive data and complex authorization rules.

Everything in Starter
Deeper BOLA/BFLA testing across roles and workflows
Rate-limiting, abuse automation and data exposure testing
Integrations/webhooks testing (when applicable)
One retest cycle within an agreed window
Book 15-Min Scoping Call

Starter (Defined API Scope)

From $5,000+

Suitable a focused set of endpoints or a new API release that needs validation fast.

Endpoint discovery and auth flow review
OWASP API Top 10 baseline coverage
BOLA/BFLA checks for key objects and functions
JWT/OAuth token validation checks
Report with prioritized remediation steps
Get Fixed-Price Quote
Note (optional for early-stage teams): API Release Sprint (limited scope) is available from $4,500+. Pricing depends on endpoint count, auth roles, authorization depth (BOLA/BFLA), and test environments.

Recent Case Studies

From vulnerability assessments to full-scale pentests — see how we deliver measurable impact.

See a sample report before you submit

Download Sample Report

🔐 Frequently Asked Questions (FAQs)

Find answers to commonly asked questions about our products and services.

Get Started with API Pentest Testing Services

Secure your APIs with the industry’s leading penetration testing services.
At Pentest Testing Services, we are committed to providing you with the highest level of security and peace of mind. Contact us today to learn
more about our API penetration testing services and how we can help
you protect your business.

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