Expose your API with confidence

API Security Testing Services

Our API penetration testing services cover an extensive attack surface that includes OWASP’s Top 10 vulnerabilities in order to identify the most important risks found in modern APIs regardless of the technologies it was built on.

Contact an Expert

This field is for validation purposes and should be left unchanged.

Got an urgent need?
Call us at 1-877-805-7475.


Already Know What You Need?

Answer a few questions using our scoping tool to quickly receive a tailored quote with all-inclusive pricing.
cybersecurity for finance, cybersecurity for insurance, cybersecurity, cybersecurity for insurance, cybersecurity solutions for healthcare, cybersecurity for healthcare, cybersecurity for education, cybersecurity solutions for education, cybersecurity for transportation, cybersecurity solutions for transport, cybersecurity for transport, cybersecurity for saas, cybersecurity solutions for saas, cybersecurity for saas companies, cybersecurity for startups, cybersecurity for startup companies, cybersecurity solutions for startups, cybersecurity for e-commerce, cybersecurity solutions for e-commerce, cybersecurity for energy, cybersecurity solutions for energy

What is API Security Testing?

API Penetration Testing is the primary assessment used to identify and address vulnerabilities in Web services that could be exploited by hackers for malicious purposes, using the same tools and techniques. Our API penetration testing services simulate a real cyberattacking targeting your Web services and offer an accurate representation of your API security by presenting several real-world opportunities for hackers to circumvent your security measures and launch additional attacks.

Why Conduct a Pentest of Your API?

Conducting security testing of your API provides invaluable insights into the potential threats that may compromise the cybersecurity of your endpoints and its users. Here is what you will get after conducting a project with our team:

Our tests will test the effectiveness of your app’s existing security controls in preventing and detecting attacks. By simulating an attacker, our experts will identify gaps in your defenses and provide remediation measures to improve your ability to prevent cyberattacks.

Our tests will identify and measure vulnerabilities that could be exploited to gain unauthorized access to sensitive data, administrative features, or damage your reputation. By understanding exactly what could happen during an attack, organizations can prioritize their security efforts and allocate resources effectively.

Our team will help you identify all existing vulnerabilities in your API endpoints and its underlying hosting infrastructure. The test will result in prioritized remediation steps to help reduce your overall risk exposure.

Our services will provide detailed information on how an attacker can breach your API, what data or critical systems they could target and how to protect them. With this information, our team will provide you with tailored recommendations to improve your API’s security posture and protect it against potential threats.

Many regulatory frameworks require API penetration testing as part of their compliance requirements. Our tests will help your organization meet these requirements effortlessly, by providing an official attestation that your risks have been successfully mitigated following remediation testing.

Gain a deeper understanding of development processes that might inadvertently introduce security risks, allowing you to develop more secure APIs in the future.

When Should You Perform an API Penetration Test?

Performing frequent API security testing ensures your organization stays proactive and maintains a robust cybersecurity posture:

Our API Security Testing Methodology

Our API security testing approach is based on manual techniques and goes beyond a typical scan, allowing you to identify complex vulnerabilities present in modern APIs. Here is a breakdown of our approach divided into three distinct types of tests:
api security testing

Security Assessment

Our experts validate that your API meets various security requirements. For instance, authorization parameters and data access conditions are assessed to determine how the API handles permissions.

api security testing

Penetration Testing

We attempt to breach your API by circumventing user privileges and bypassing authentication functions to identify technical vulnerabilities that allow hackers to further infiltrate your systems.

security testing


Using various attack methods commonly deployed by hackers, we manipulate API requests and parameters to identify vulnerabilities that can be exploited to compromise your security.


Improve Your API Security

API security testing is an essential part of any API development process. By testing for vulnerabilities, you can help to ensure that your API is safe and secure from real hacking scenarios. Our methodology leverages the OWASP API Security Testing Guide in order to identify the maximum amount of vulnerabilities that can be found in modern APIs. In addition to industry standards, We cover various types of exploits commonly used by hackers to breach your API:

Parameter tampering

Fuzz testing

Endpoint authorisation

XSS Attack

Command injection

Endpoint authentication

CSRF attack

Man-in-the-middle attack


“ By 2022, API abuses will be the most-frequent attack vector ”

-Gartner Research

Need Help To Assess And Improve Your Cybersecurity?

OWASP Top 10 API Vulnerabilities

Our API Penetration Testing combines both automatic and in-depth manual testing techniques. We use OWASP’s API security standard as a baseline for our testing methodology in order to identify vulnerabilities unique to each API.

Frequently Asked Questions

Couldn’t find the information you were looking for? Ask an expert directly.

What is the purpose of conducting an API penetration test?

API penetration testing is designed to identify and address security vulnerabilities within an organization’s API endpoints. It helps ensure the security and compliance of APIs, protecting sensitive data, and preventing potential cyberattacks.

How is it performed? What is the process?

API penetration testing follows a systematic process that includes scoping and planning, information gathering, threat modeling, vulnerability assessment, reporting and remediation, and re-testing and validation. This comprehensive approach helps identify and address vulnerabilities, by simulating real-world cyberattacks on API endpoints, ensuring the API’s security is enhanced based on the identified risks and potential attack vectors.

What are the requirements to get started?

To begin an API penetration test, organizations must provide details about the API endpoints (usually with an API definition file), access credentials when required, and any specific testing requirements or restrictions. A scoping discussion is always planned with your team to establish the scope and objectives prior to the test.

Can it disrupt our normal operations or cause downtimes?

API security testing is usually performed in a controlled manner to minimize the risk of any disruption and the overwhelming majority of our clients cannot tell any testing is being performed. In any case, the testing team will discuss with your team in a pre-launch call to ensure they understand any potential operational impacts and can conduct tests accordingly.

Do we need to provide any access or permissions for the test to be conducted?

In most cases, no access or permissions are required, as the goal is to replicate an authentic cyber threat attempting to compromise your API. However, in some contexts, and depending on your objectives, some level of access may be required in order for the test to be conducted effectively. This may include API keys, authentication credentials, and documentation about the API’s functionality. Any access requirements will be discussed with your team prior to the launch to determine if it is required to achieve the desired outcome.

How does it fit into our overall cybersecurity strategy?

API security testing is a critical step of an organization’s development lifecycle. It helps identify and remediate vulnerabilities in APIs, enhances the security posture, and ensures compliance with industry regulations.

What kind of APIs can you test?

Our testing process is designed to adapt to different API technologies and architectures, ensuring a comprehensive assessment of your API’s security.

  1. RESTful APIs: The most common API architecture that uses HTTP methods (GET, POST, PUT, DELETE) and follows standard conventions for resource access.
  2. SOAP APIs: XML-based APIs that use a predefined contract (WSDL) to define the structure and semantics of requests and responses.
  3. GraphQL APIs: A query language and runtime for APIs that enables more flexible data retrieval and manipulation.
  4. JSON-RPC and XML-RPC: Remote procedure call (RPC) APIs that use JSON or XML, respectively, for encoding the request and response data.
  5. gRPC APIs: High-performance APIs built on the Protocol Buffers serialization format and the HTTP/2 protocol.
  6. Custom APIs: APIs that follow proprietary protocols or conventions specific to a particular application or organization.

Professional Reporting With Clear & Actionable Results

Our penetration reports deliver more than a simple export from a security tool. Each vulnerability is exploited, measured and documented by an experienced specialist to ensure you fully understand its business impact.

Each element of the report provides concise and relevant information that contributes significantly towards improving your security posture and meeting compliance requirements:

Executive Summary

High level overview of your security posture, recommendations and risk management implications in a clear, non-technical language.
Suited for non-technical stakeholders.

Vulnerabilities & Recommendations

Vulnerabilities prioritized by risk level, including technical evidence (screenshots, requests, etc.) and recommendations to fix each vulnerability.
Suited for your technical team.


This document will allow you to meet compliance and regulatory reporting requirements efficiently and with minimal overhead.
Suited for third-parties (clients, auditors, etc).


Empowering Your Cybersecurity, Our Mission

Our ISO9001-certified cybersecurity services are trusted by more than 400 organizations each year, including SMBs, Fortune 1000 companies, and government agencies.

CERT Accredited Cybersecurity Company

Your Trusted Cybersecurity Partner

Vumetric is a leading cybersecurity company dedicated to providing comprehensive penetration testing services. We pride ourselves on delivering consistent and high-quality services, backed by our ISO 9001 certified processes and industry standards. Our world-class cybersecurity assessment services have earned the trust of clients of all sizes, including Fortune 1000 companies, SMBs, and government organizations.

Cybersecurity Experts

Certified Hackers

Proven Methodologies


Reputation & Trust

No Outsourcing

0 +
0 +
0 +
0 +

Featured Cybersecurity Services

As a provider entirely dedicated to cybersecurity assessements, our expertise is diversified and adapted to your specific needs:

Penetration Testing

Secure public-facing assets and networks from external threat actors.
Learn More →

Web Application Penetration Testing

Protect your web applications from malicious behavior and secure your client data.
Learn More →

Penetration Testing

Secure internal systems, servers and sensitive databases from unauthorized access.
Learn More →


Mitigate organization-wide threats and benchmark your security posture with best practices.
Learn More →

Smart Device (IoT)
Penetration Testing

Protect consumer, commercial and industrial IoT devices from disruptions.
Learn More →

Penetration Testing

Protect your cloud-hosted assets and applications, no matter the cloud provider.
Learn More →


Enter your Email Address

This field is for validation purposes and should be left unchanged.

* No free email provider (e.g: gmail.com, hotmail.com, etc.)

This site is registered on wpml.org as a development site.