api penetration testing tools Archives

10 Best Api Security Testing Tools in 2025

Chandan / March 24, 2025

APIs and application Programming Interfaces are the driving forces behind modern web applications. They allow two different software components to communicate with each other. Data interchange is enabled through these interfaces. The most serious drawback of API usage is that these are the most frequently used components and the more they get used, the higher the chances of getting the amount of security flaws enlisted. The exploitation of these flaws on the part of an intruder could lead to the stealing of private data or either make the whole system go out of control or gain unauthorised access. Thus, it is a compulsory measure in this aspect to use API Security Tools, which would greatly help in detecting and treating the possible vulnerabilities existing in the API infrastructure. That is why API security testing becomes significant here. With API security testing tools, organisations can save and secure their vital data or infrastructure. They can also detect and repair system damage. So, in this blog, we will learn about what API security is and why it is important, we will understand how to choose the best tools for you. What is API Testing? API testing is an important aspect of software quality monitoring since it requires assessing APIs to ensure that they function properly, stability, execution, and safety. Unlike standard GUI testing, Testing an API concentrates on the application of the building’s company logic section. This type of testing is critical since it identifies problems before the creating period, resulting in improved reliability and stability of applications. “Also, read our ultimate guide to API Security! Advantages of API Testing? Identifying flaws at the initial phase of application progress: API testing allows for access to an application without a user interface or a user that incorporates himself/herself into the system. This gives a team an early view into spotting cracks and faults in an application and takes care of them much before they get an effect on any interface. Quick and waste-minimising testing time frame: Rapid delivery of results, fast identification of flaws, and less time-weight reduction in total testing time-all these qualities make API testing stand out from the crowd. More Effective Software Protection: The fastest approach to test all scenarios and swiftly examine software code, including operations, divisions, and remarks, is to test APIs with every potential format and information. When properly built, API tests may rapidly, regularly, and effectively test the connection of various parts of an application. Best API Security Testing Tools in 2025 1. Acunetix 2. Invicti 3. 42Crunch 4. Burp Suite Community Edition 5. ZAP (Open-Source) 6. Akto (Open Source) 7. APISec 8. Firetail 9. Probely 10. Katalon “You might like to explore our guide to API Penetration Testing! Latest Penetration Testing Report Download How to Pick the Best Tools for API Security Testing Based on Your Requirements The factors that follow must be considered into account when selecting the top API security testing tools: Know what you need Decide on your desired automation parameters, financial constraints, and APIs (GraphQL, REST, etc.). As a result, look for materials that address your particular safety concerns, including the OWASP top 10 flaws. Verify the CI/CD Pipeline Connectivity Since programmers are often updating APIs, incorporate checking into the workflow. During growth, constantly pick a tool which is easy to install and integrates nicely with your CI/CD workflow. Provide The Amount Of Coverage as The Highest Priority Make sure the tool targets a wide variety of significant vulnerabilities, including injection and failed authentication. Avoid investing in equipment that only provides defence from well-known or frequent dangers. Usability Is Important To facilitate effective evaluations, an interface’s specifications and functionality should be as simple as necessary. Check through how much the program includes a free trial or demo update which means you can show the team how to use it. Conclusion Protecting APIs has grown crucial in the modern era, as organisations and apps depend on them. To identify prevalent flaws and stop them from becoming abused, programmers use tools for API security testing. Because of this, the API security testing tools mentioned and explained in this blog contain a range of functions and choices that may be tailored to meet the needs of various people. Thus, it is essential to safeguard applications, information, and customers from these threats and integrate robust API security testing into the creation method to establish a more reliable and secure online community. Contact Qualysec to discuss your specific cybersecurity or penetration testing requirements! Talk to our Cybersecurity Expert to discuss your specific needs and how we can help your business. Schedule a Call

What is API Penetration Testing & Why it is Important?

[email protected] / July 19, 2024

API penetration testing keeps the APIs safe from cyberattacks and data breaches. APIs or Application Programming Interfaces are those software that help different apps communicate with each other. APIs have revolutionized the digital landscape by playing a key role in the rapid advancement of software and application development within DevOps teams. However, due to their critical nature and the way they handle sensitive data, they have become a prime target for attackers. In fact, research shows that insecure APIs may cause a loss of up to $75 billion globally. In this blog, we will cover the importance of API penetration testing, its checklist, its process, and how it is different from other penetration testing services. If your application uses APIs, you need penetration testing. What is API Penetration Testing An API penetration test is done by pen testers to ensure that the APIs are properly secured from various cyber threats. The tester may use automated tools and manual testing methods to find security vulnerabilities on the interfaces and all components of the API. This is an offensive security practice where the testers subject the APIs to real attacks to check if they are strong enough to prevent them. The goal of API pen testing is to identify security vulnerabilities, ensure compliance, enhance its security, and build trust among customers. After testing, the pen testers will provide you with a detailed report that will include identified vulnerabilities in APIs, their impact level, and how to address them. What is the Difference Between API Pentest and web Pentest? Different types of applications require different security testing approaches. API pen testing, including Rest API pentesting, GraphQL API pentesting and SOAP API pentesting, differs significantly from the methodologies used in web applications and other software. Given the specialized nature of the APIs, let’s understand how it is different from traditional application testing. Aspect API Penetration Testing Web App Penetration Testing Focus Testing interfaces and data exchanges between systems. Testing web pages and server-side functionalities. Methodology API-specific vulnerabilities and authentication mechanisms. OWASP Top 10 web vulnerabilities, including XSS and SQL Injection. Tools Uses specialized tools for API endpoints and data formats. Uses tools like vulnerability scanners for web apps. Attack Surface Targets endpoints, headers, parameters, and API schemas. Targets URLs, forms, cookies, and server configurations. Challenges Handling various data formats and authentication methods. Dealing with complex client-side interactions and DOM manipulation. Security Considerations Focuses on securing API keys, tokens, and rate limiting. Focuses on session management, input validation, and secure authentication. Why API Penetration Testing is Important API penetration testing is important primarily to secure the application it is integrated into. It also ensures the data processed by the API is also safe from breaches. Testing the API will help the developers know the potential security vulnerabilities it has. As a result, they can be remediated before attackers can exploit them. By conducting regular API pen tests, organizations can significantly reduce the risk of security breaches and protect their data and applications. Additionally, API penetration testing services can also help organizations with necessary compliance. Benefits of API Penetration Testing As discussed above, organizations can enjoy several benefits by conducting API penetration testing, such as: 1. Identify API-Specific Vulnerabilities API penetration testing thoroughly examines endpoints, authentication mechanisms, input validation procedures, and authorization controls. It uncovers both common and API-specific vulnerabilities, such as insecure API endpoints, inadequate authentication methods like weak tokens or keys, and improper handling of sensitive data formats like JSON or XML. Security testing APIs is essential for identifying and mitigating vulnerabilities, ensuring strong protection against cyber threats. 2. Enhance API Security By finding and addressing security vulnerabilities, API pen testing strengthens its overall security. It ensures that the API is resilient against emerging threats that target sensitive data and API operations. Additionally, since API is directly integrated with the applications, its security is also important for the application’s security. 3. Address Risks in API Communication API pen testing helps in identifying and mitigating risks associated with API communication, including unauthorized access, data breaches, and man-in-the-middle attacks. It helps organizations protect sensitive data managed by transmitted through the APIs and ensures compliance with data protection laws. 4. Ensure Regulatory Compliance API penetration testing helps organizations comply with regulatory requirements by verifying the security measures for API data handling and privacy. Not complying with these laws may result in legal fines and loss of business reputation. As a result, pen testing assures that the APIs adhere to standards such as PCI-DSS for payment processing APIs or HIPAA for healthcare data APIs. 5. Optimize API Performance and Build Trust Apart from security, API penetration testing also tests the reliability and performance of the API. It helps identify and address security-related performance issues such as latency, throughput bottlenecks, and scalability concerns. Additionally, a secure API builds trust among its customers, partners, and stakeholders, as there are fewer risks of security incidents. Want to make your API and applications secure? Partner with Qualysec for customized penetration testing for all your security needs. Talk to our Cybersecurity Expert to discuss your specific needs and how we can help your business. Schedule a Call API Penetration Testing Checklist This API penetration testing checklist is a comprehensive guide that outlines essential security measures required to enhance API security. It is based on established security standards, such as the OWASP Top 10 API Security Risks. 1. Authentication & Authorization Verifying whether the authentication mechanisms are effective and that only authorized users or applications can access the API. Also, check if the API has proper authorization measures to prevent unauthorized access to resources. 2. Input Validation and Sanitization Attempting to exploit common vulnerabilities like SQL injection and other injection attacks to examine how the API handles user input. It checks whether the API properly validates and sanitizes the data supplied by the user. 3. Error Handling and Information Leakage Evaluating how the API handles errors and whether it provides detailed error messages. Without an error-handling system, it can result in