API Testing

API testing can be an unnerving task if you aren’t quite sure where to start.

We have the resources you need to understand how to test your APIs and actually test them.
Identifying Vulnerabilities for
Customized Recommendations
API Testing
Improper Authorization
API Testing
Input Validation
API Testing
Message Integrity
API Testing
Weak Authentication
API Testing
Output Encoding
API testing
HTTP Return Code
API Testing
Broken Authentication
API Testing
API Testing
Data Encryption
Looking for a First-Class
Cybersecurity Expert?
Understand the risk posed to you, and your customers, by the vulnerabilities present in the API/message layer and web UI level of your applications.

API Security

Identify API Vulnerabilities and Exposures

There are a number of things to consider when it comes to API security testing.

We perform API security testing by analyzing both request and response. To clarify, this is done in order to discover and fix security vulnerabilities earlier in the software development cycle.

For instance, whether you’re using REST, SOAP, or a mix of both, we’ve got your APIs covered.

Further, a detailed analysis of JSON and XML are performed as part of our API security testing process.

A Hybrid Approach

All of our API Penetration Tests go beyond national standards – such as OWASP – and your test will come with a detailed final report.

Your detailed final report will include an executive summary, a listing of findings, risk ratings and remediation recommendations.  In addition, a letter of accreditation can be provided upon your request.

During the API penetration testing process, automated, as well as comprehensive manual testing, will be used to identify existing vulnerabilities at the API/message layer of  your applications.

Systematic Protection
Our Process

Here at MainNerve, our API security testing process involves a comprehensive, risk-based approach to manually identify critical API vulnerabilities.

Throughout the API security process, a number of professional tools will be utilized to perform an in-depth test. Example tools may include: BurpSuite, RestClient, SOAPUIPro, and more.

Following the conclusion of the API penetration test, MainNerve will provide a comprehensive final report that details all findings associated with the test.

The first phase of the API penetration test is critical to the success of the test. It is very important that the team understands all of the features and functions of the application.

The team does this by browsing through the application, going through the user manuals or, if required, a walkthrough of the application along with the application owner or developers. We work with you to ensure we are fully aware of its aims, functions, etc.

The threat profile comprises a list of potential threats against the application that we have identified. The threat profile is the starting point for all subsequent tests. 

We map each threat in the threat profile to specific pages on your site. The test plan then identifies all the attacks we need to carry out on those pages to assess that specific threat.

Once the test plan and test cases are prepared and approved by a senior member of the team, the API penetration testing begins. This will comprise a combination of manual and automated checks that adhere to the test plan.

During the course of testing the tester may identify additional tests or attacks to perform, in which case the test case will be updated and subsequent tests performed. The team takes up the threats one by one and starts performing the tests.

If a test case is successful, then it is marked as unsafe in the test plan.

At MainNerve, we consider the final phase of the API penetration testing process, reporting, to be the most crucial and instrumental step. Once the team is through with the API testing, the reporting process begins.

The detailed report delineates each vulnerability discovered as well as the method of discovery. Potential solutions to each finding are also included.

The report is made available, securely, to the client after it has been reviewed internally.

Consider These
Value-Add Services
Mobile Application Penetration Testing

Mobile application penetration testing will assess the state of risk to your mobile application and provide remediation recommendations you can use to address any vulnerabilities discovered.  MainNerve’s testers will apply the OWASP Methodology as they thoroughly examine your application.

Ensure that your business is secure by testing and evaluating your employees against general phishing and “spear-phishing” attacks.

Web App Penetration Testing

Web application penetration testing is designed to assess and test the state of your web-facing applications and provide actionable remediation recommendations for enhancing your security. Ensure that your web applications are protected from malicious cyber threat actors. 

Network Penetration Testing

Network penetration testing assists with the identification and examination of vulnerabilities for external, Internet-facing and internal, intranet systems. A network pen test will help determine whether an attack can exploit and compromise targeted systems. Take the next step to improving your business’ security with a network pen test.

From PCI DSS and HIPAA, to CJIS and FINRA, MainNerve can help your business navigate the GRC landscape with specialized penetration tests.

Customers & Partners that Trust MainNerve

What Our Clients Say

Don B.
MainNerve Partner & CEO of FrontierIT

We value our professional relationship with MainNerve. Their employees are friendly and extremely responsive. They always take care of our clients as if they were their own, while maintaining the penetration and social engineering testing. We couldn’t ask for a better Cybersecurity partner.

Investment Management Company

In 12 years of tests, you are the first company that found anything higher than a low risk. Phone and cameras were never discovered in the test, let alone accessed. Great to always get a different perspective from a test.

Managing Partner
Data Warehouse Platform Company

This is a very well written report! Very impressive!

Network Administrator
Enterprise Administration Software Company

The report looks great!

IT Manager
Property Management

I felt the whole project was done in a professional manner.

IT Manager
Insurance Company

Sheena was very kind, quick with replies, and patient with my questions. That is why I also introduced your service to other company.

VP Engineering
Health Care Software and Billing

All the correspondence with MainNerve was great and the staff were very professional and helpful.

Director of Information Technology
Data Analytics Company

I appreciate the level of detail your team incorporates into your findings.

Bug Sweep Specialist

MainNerve crew is top notch.

MainNerve Partner-MSP
We love working with MainNerve.  They are prompt in responding to our requests and help us get pen tests set up for our clients quickly.

MainNerve provided an extremely fast turn around when speed was our biggest factor. The project went smoothly and I would highly recommend them!

Vice President
Actuarial Firm
Our local partner that normally provides us with vulnerability and penetration testing was unable to help us this year. We were lucky enough to find MainNerve as a solution to our problem. MainNerve was very responsive to us and worked under a very tight timeframe to perform vulnerability and penetration testing for us and help us out of a tough situation. They went above and beyond. They provided us with some additional guidance in other security areas as well. We will continue to use MainNerve each year now for our security testing needs. We are glad we found them.
Dental Office

I would highly recommend MainNerve for all of your network system testing needs. From my initial contact, all the way through the end of the services I received, everyone I encountered was courteous, professional, knowledgeable, patient, and very helpful. As a small business owner, who’s business was shut down as a result of the Covid-19 pandemic, MainNerve’s service fees were extremely reasonable making it affordable to ensure my network is secure from hackers. I will definitely be a repeat customer!! Thanks MainNerve!!

Software Engineer
IT/ Saas

Sheena was great in guiding us though what was a new process for us. A client had asked us for a third party penn test report and she was very helpful in helping us choose the correct product and in determining the scope.

Technology Company

I was quite pleasantly surprised by the engagement. I think the thing I liked best about it was that everyone at MainNerve really took the time to listen and understand what we did, why we were doing it, and our business goals. It gave us confidence that we were in the right hands.

Dental Office

This is my second encounter with MainNerve and my experience this time was even better, which is impressive considering my first encounter was great. I definitely recommend their services for your testing needs.

Insurance Administrator

Always nice to have a dependable vendor that is fully committed and reasonably priced.


This was our third time around getting penetration and vulnerability scans through Main Nerve. Transactions have always been quick and easy and all involved have been very responsive.


Always nice to have a dependable vendor that is fully committed and reasonably priced.

Senior Sales Executive

We were very happy with the experience and the deliverable/reporting.

Managed IT Services

A great organization to work with and true experts and professionals in the field. Their entire team was very responsive and helpful throughout the entire testing process.

IT Manager

It’s been a great partnership for the last 4 years. When NYDFS Cybersecurity regulation was announced back in 2017, I did not have much experience in the security fields such as risk assessment, vulnerability assessment, and Penetration testing and was not comfortable creating the plan. I was searching for information on the internet and came across multiple companies. I contacted MainNerve and they explained the process as well as their background which gave me comfort in the overall process as well as the confidence in the MainNerve team. Also, the cost was very reasonable. Going through the signing, planning, assessment, testing, and reporting, they were in constant contact with me and updated me with steps they are taking and when I can expect the next milestone. When we had delays, they were patient and worked with us. We finished all the assessment and testing in the expected time and now we just do it annually. As our IT environment expands, we increase the scope of the testing, and MainNerve has been very flexible with our plans, budget, and timing. I have introduced the MainNerve to colleagues in other companies in NY and they are also satisfied with the service.