Rated 4.9/5 on

Why is API scanning important?​

APIs are now a critical part of most mobile, SaaS and web applications. But as more organizations build APIs to increase automation and improve performance, the attack surface for hackers is growing.

Knowing where your APIs are, and understanding how attackers can exploit them, is more important than ever. Regular API scanning helps to secure your application by identifying weaknesses so you can fix them before they're exploited.

An all-round security scanner for your systems​

Intruder makes vulnerability management effortless by offering comprehensive protection for your entire tech stack. Running checks on API endpoints, web applications, and underlying infrastructure, it ensures that no important vulnerability is overlooked.​​

Full coverage security with API security testing

Intruder's dynamic application security testing (DAST) scanner scales API vulnerability scanning to meet the needs of your growing business. ​

Complete coverage through informed scanning

  • Upload your OpenAPI/Swagger API schema to get complete coverage of your API endpoints​
  • Run tailored security checks to find vulnerabilities, such as security misconfigurations and injection flaws from the OWASP Top 10 API security list​
  • Run scans on authenticated and unauthenticated APIs for security inside and out​

Save time with automated API security testing

  • Recurring scans at flexible intervals
  • Proactive emerging threat scans notify you as soon as new vulnerabilities are discovered
  • Intelligent prioritization of results with remediation advice

Integrate into your DevOps process for security while you build

  • Use Intruder's API to integrate with your CI/CD pipeline and automatically find weaknesses earlier in the development lifecycle​
  • Integrate with your stack to make teamwork easy – Slack, Jira, Github and more​
  • Receive comprehensive reports to demonstrate security to stakeholders and/or customers​

Secure your applications with Intruder’s API scanner

Want to learn more about API security, why it's important, and understand if you're following the necessary steps to protect your organization?

Read our guide to API security to answer these questions.

Web App Vulnerability Management

A Guide to API Security

read our guide

What our customers say

We were in need of a testing product that would test from the inside out and outside in. That's what first attracted us to Intruder. The product is well laid out with a clear, concise Cloud interface. 

Roy McKenzie

Director of Information Technology,
G&S Foods LLC

I really like how Intruder integrated with our internal company comms (ie Slack), this meant we stayed on top of the notifications it produced. Time is critical when it comes to security vulns so it’s helpful to have messages from Intruder next to our daily workflows.

Will Lewis

Senior Engineering Manager,

Not only does Intruder save me time and money, but it helps us close deals. Some customers are now requiring regular network scans in order to do business with SaaS companies. By utilizing Intruder we're able to meet client demand and ensure we're doing the right thing to keep our customer trust.

Justin Unton

Head of Information Security at Litmus

Auto-discovery, a very proactive set of scans against emerging threats and solid notifications. Intruder is a tool I can forget about unless I need to. Rock solid UX.

James Ramirez


Frequently asked questions

What is API security?

API security refers to the processes required to protect APIs from cyber attacks. This typically includes the use of an API scanner to detect weaknesses that could be exploited by attackers.

How does Intruder scan APIs?

Intruder conducts authenticated or unauthenticated vulnerability scans for APIs with 1:1 mapping using the OpenAPI or Swagger protocols. Simply upload your OpenAPI/Swagger schema to start running automated checks for security weaknesses.

Which plan do I need to scan APIs?

To start scanning your APIs you need an Application License, which is available across all our plans (Essential, Pro, Premium, and Vanguard). As well as API security scanning, this license covers web applications (including authenticated areas).

Why is API security testing important?

API security testing is essential for preventing service disruption and lost business, in addition they can be a goldmine for customer data. Without a robust API security solution, they can lead to devastating data breaches. For example, an insecure API resulted in a breach for Australian telco Optus; the details of 11 million customers were accessed by attackers.

How do I best secure APIs?

One of the best ways to secure APIs is by using an API scanning tool to check for vulnerabilities. Here are four more API security best practices:

  • Use tokens
  • Use encryption and signatures
  • Use quotas and throttling
  • Use an API gateway

What is an API endpoint?

An API endpoint is the final touchpoint in an API communication system; typically a URL. Protecting these endpoints with an API security solution is essential, because they make the entire API system vulnerable to attack.

Start your 14-day free trial

of Intruder's website security scanner, to provide continuous protection for your systems today!