Compare the Top API Security Software in the UK as of September 2026

What is API Security Software in the UK?

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 in the UK currently available using the table below. This list is updated regularly.

  • 1
    Silent Armor

    Silent Armor

    Silent Breach

    Silent Armor is an AI-powered perimeter defense platform designed to predict and prevent cyber breaches before they occur. It continuously analyzes hundreds of security metrics across an organization’s attack surface to deliver real-time, intelligent protection. The platform combines predictive analytics, dark web monitoring, and threat correlation to uncover emerging risks. Agentless attack surface monitoring allows organizations to discover exposed assets without deploying endpoint software. Automated mitigation playbooks help neutralize threats directly from a unified dashboard. AI-generated daily security briefs provide executive-level insights and prioritized remediation steps. Built for CISOs, SOC teams, and MSSPs, Silent Armor transforms fragmented security data into proactive, actionable defense.
    Starting Price: $49/asset/month
  • 2
    Intruder

    Intruder

    Intruder

    Intruder is an international cyber security company that helps organisations reduce their cyber exposure by providing an effortless vulnerability scanning solution. Intruder’s cloud-based vulnerability scanner discovers security weaknesses across your digital estate. Offering industry-leading security checks, continuous monitoring and an easy-to-use platform, Intruder keeps businesses of all sizes safe from hackers. Receive actionable results prioritised by context. Intruder interprets raw data received from leading scanning engines, so you can focus on the issues which truly matter, such as exposed databases.‍ Intruder's high-quality reports help you sail through customer security questionnaires, and make compliance audits like SOC2, ISO27001, and Cyber Essentials a breeze.
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