Best API Security Software
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Compare the Top API Security Software as of October 2026
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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.
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Cortex Cloud
Palo Alto Networks
Cortex Cloud from Palo Alto Networks is a cutting-edge platform designed to provide real-time cloud security across the entire software delivery lifecycle. By combining Cloud Detection and Response (CDR) with advanced Cloud Native Application Protection Platform (CNAPP), Cortex Cloud offers unified visibility and proactive security for code, cloud, and SOC environments. It enables teams to prevent and respond to threats quickly with AI-driven risk prioritization, runtime protection, and automated remediation. With seamless integration across multicloud environments, Cortex Cloud ensures scalable and efficient protection for modern cloud-native applications. -
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Operant
Operant AI
Operant AI shields every layer of modern applications, from Infra to APIs. Within minutes of a single-step deployment, Operant provides full-stack security visibility and runtime controls, blocking a wide range of common and critical attacks including data exfiltration, data poisoning, zero day vulns, lateral movement, cryptomining, prompt injection, and more. All with zero instrumentation, zero drift, and zero friction between Dev, Sec, and Ops. Operant's in-line runtime protection of all data-in-use, across every interaction from infra to APIs, brings a new level of defense to your cloud-native apps with zero instrumentation, zero application code changes and zero integrations.
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