Best API Security Software

Compare the Top API Security Software as of October 2025

What is API Security Software?

API security software is designed to protect APIs from security threats such as unauthorized access, data breaches, and denial-of-service attacks. These tools monitor, authenticate, and secure the connections between APIs and the systems they interact with, ensuring that only authorized users and systems can access the data or services offered by the API. Features typically include encryption, rate limiting, authentication (such as OAuth, JWT), API traffic monitoring, threat detection, and automated security testing. API security software is crucial for businesses that rely on APIs to connect with third-party services, mobile apps, or microservices, as it helps mitigate risks and maintain data integrity. Compare and read user reviews of the best API Security software currently available using the table below. This list is updated regularly.

  • 1
    Quantum Armor

    Quantum Armor

    Silent Breach

    Your attack surface is the sum of every attack vector that can be used to breach your perimeter defenses. In other words, it is the total quantity of information you are exposing to the outside world. Typically, the larger the attack surface, the more opportunities hackers will have to find a weak link which they can then exploit to breach your network. Professional hackers typically follow the cyber kill chain when attacking a target, and surveying the target's attack surface is normally the very first step in this process; what is known as advanced reconnaissance. Reducing the attack surface can minimize risk further down the cyber kill chain, preventing attacks before they even occur by eliminating potential attack vectors as early as possible. The cyber kill chain is a method of categorizing and tracking the various stages of a cyberattack from the early reconnaissance stages to the exfiltration of data.
    Starting Price: From $49/asset/month
  • 2
    GlitchSecure

    GlitchSecure

    GlitchSecure

    Continuous Security Testing for SaaS Companies - Built by Hackers Automatically assess your security posture with continuous vulnerability assessments and on-demand pentests. Hackers don't stop testing, and neither should you. We use a hybrid approach that combines testing methodologies built by expert hackers, a real-time reporting dashboard, and continuous delivery of high-quality results. We improve the traditional pentesting lifecycle by continually providing expert advice, remediation verification, and automated security testing throughout the entire year. Our dedicated team of experts works with you to properly scope and review your applications, APIs, and networks to ensure in-depth testing coverage all year. Let us help you sleep better at night.
    Starting Price: $6,600 per year
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