Compare the Top API Security Software for Cloud as of April 2025

What is API Security Software for Cloud?

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 for Cloud currently available using the table below. This list is updated regularly.

  • 1
    Fastly

    Fastly

    Fastly

    Empower your developers, connect with your customers, and grow your business with today’s leading edge cloud platform. Deliver the best online experiences possible with our edge cloud platform, built to strengthen your current teams and technology. We move data and applications closer to your users — at the edge of the network — to help your websites and apps perform faster, safer, and at global scale. Fastly's highly programmable CDN gives you the freedom to customize delivery right at the edge. Delight your users with the content they want at their fingertips. Our powerful POPs, driven by solid-state drives (SSDs) and hosted in well-connected locations around the world, help us keep more content in cache longer for fewer trips to the origin. Instant Purge and batch purging with surrogate keys let you cache and invalidate highly dynamic content with a mean purge time of 150 milliseconds*. Serve headlines, inventory, or weather forecasts that are always up to date.
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  • 2
    SKUDONET

    SKUDONET

    SKUDONET

    Reliable, Scalable, and Secure Load Balancing Formerly known as Zevenet, SKUDONET Enterprise Edition is an advanced and highly scalable Open Source Application Delivery and Security Platform designed to handle large volumes of traffic across any environment—whether physical, virtual, or cloud-based for modern IT infrastructures. Built on the Linux Debian system, SKUDONET offers a robust platform that integrates advanced security and performance features, offering a cost-effective alternative to other solutions on the market. Key Features & Benefits: ✔ High Availability – Prevents downtime with intelligent traffic balancing and clustering ✔ Advanced Security – Includes DoS protection, SSL offloading, and L7 filtering to enhance cybersecurity ✔ High Scalability – Multi-core processing, optimized packet handling, and support for high-throughput environments ✔ Flexible Deployment – Available for bare metal, virtual machines, and cloud platforms with BYOL (AWS, DigitalOcean)
    Starting Price: $1736/year/appliance
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  • 3
    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
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    Cloudflare

    Cloudflare

    Cloudflare

    Cloudflare is the foundation for your infrastructure, applications, and teams. Cloudflare secures and ensures the reliability of your external-facing resources such as websites, APIs, and applications. It protects your internal resources such as behind-the-firewall applications, teams, and devices. And it is your platform for developing globally scalable applications. Your website, APIs, and applications are your key channels for doing business with your customers and suppliers. As more and more shift online, ensuring these resources are secure, performant and reliable is a business imperative. Cloudflare for Infrastructure is a complete solution to enable this for anything connected to the Internet. Behind-the-firewall applications and devices are foundational to the work of your internal teams. The recent surge in remote work is testing the limits of many organizations’ VPN and other hardware solutions.
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    Starting Price: $20 per website
  • 5
    AppTrana

    AppTrana

    Indusface

    Indusface’s AppTrana is a fully managed web application firewall that ensures risk-based protection with its DDoS, API risk, and Bot mitigation services while assuring web acceleration with secure CDN. Combining automated scanning with manual pen-testing, it detects application vulnerabilities. All of this with 24x7 expert support to meet zero false-positive guarantees. Indusface is the only vendor to be named Customers’ Choice for WAAP in all the 7 segments of the Gartner VoC 2022 Report.
    Starting Price: $99/month
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    Graylog

    Graylog

    Graylog

    Built on the Graylog Platform, Graylog Security is the industry’s best-of-breed threat detection, investigation, and response (TDIR) solution. It simplifies analysts’ day-to-day cybersecurity activities with an unmatched workflow and user experience while simultaneously providing short- and long-term budget flexibility in the form of low total cost of ownership (TCO) that CISOs covet. With Graylog Security, security analysts can: 1. Decrease risk and metrics like mean time to detect (MTTD) by aligning threat detection coverage to meet your security objectives 2. Reduce TCO with native data routing and data tiering functionality 3. Reduce key metrics like mean time to respond (MTTR) by quickly resolving the alerts that matter. Graylog Security is a robust, scalable solution that empowers analysts to detect and respond to cybersecurity threats efficiently. With integrated SOAR functionality, it automates repetitive tasks, orchestrates workflows, and accelerates incident response.
    Starting Price: $1550/month (10GB per day)
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    Ambassador

    Ambassador

    Ambassador Labs

    Ambassador Edge Stack is a Kubernetes-native API Gateway that delivers the scalability, security, and simplicity for some of the world's largest Kubernetes installations. Edge Stack makes securing microservices easy with a comprehensive set of security functionality, including automatic TLS, authentication, rate limiting, WAF integration, and fine-grained access control. The API Gateway contains a modern Kubernetes ingress controller that supports a broad range of protocols including gRPC and gRPC-Web, supports TLS termination, and provides traffic management controls for resource availability. Why use Ambassador Edge Stack API Gateway? - Accelerate Scalability: Manage high traffic volumes and distribute incoming requests across multiple backend services, ensuring reliable application performance. - Enhanced Security: Protect your APIs from unauthorized access and malicious attacks with robust security features. - Improve Productivity & Developer Experience
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    ImmuniWeb

    ImmuniWeb

    ImmuniWeb

    ImmuniWeb SA is a global application security company operating in over 50 countries, headquartered in Geneva, Switzerland. Most of ImmuniWeb customers come from regulated industries, such as banking, healthcare, and e-commerce. ImmuniWeb® AI Platform leverages award-winning AI and Machine Learning technology for acceleration and intelligent automation of Attack Surface Management and Dark Web Monitoring. The data is later leveraged for a threat-aware and risk-based Application Penetration Testing for web, mobile, and API security testing. ImmuniWeb is the only company that offers a contractual zero false-positives SLA with a money-back guarantee. ImmuniWeb’s AI technology is a recipient of numerous awards and recognitions, including Gartner Cool Vendor, IDC Innovator, and the winner of “SC Award Europe” in the “Best Usage of Machine Learning and AI” category. ImmuniWeb® Community Edition runs over 100,000 daily tests, being one of the largest application security communities
    Starting Price: $499/month
  • 9
    SyncTree

    SyncTree

    Ntuple

    SyncTree strives to be a "Super Connecting Platform" that can easily connect any services you want. With SyncTree, which consists of SyncTree STUDIO, a solution for building backend business logic with block coding, and Block Store, a platform for buying and selling pre-made backend function blocks like App Store, you can organically utilize data and connect services to achieve unlimited service expansion. Based on aPaaS, Block Store provides APIs from various services such as ChatGPT, DALLE, YouTube, etc. in the form of 'backend function blocks', which you can subscribe to and then combine as you want quickly in SyncTree STUDIO to build your business logic. SyncTree is for everyone, whether you're an individual or a business, and you can subscribe and use it according to your needs, from the free version to the PRO version.
    Starting Price: Free/1Month/3,000 Call
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    Telepresence

    Telepresence

    Ambassador Labs

    Telepresence streamlines your local development process, enabling immediate feedback. You can launch your local environment on your laptop, equipped with your preferred tools, while Telepresence seamlessly connects them to the microservices and test databases they rely on. It simplifies and expedites collaborative development, debugging, and testing within Kubernetes environments by establishing a seamless connection between your local machine and shared remote Kubernetes clusters. Why Telepresence: Faster feedback loops: Spend less time building, containerizing, and deploying code. Get immediate feedback on code changes by running your service in the cloud from your local machine. Shift testing left: Create a remote-to-local debugging experience. Catch bugs pre-production without the configuration headache of remote debugging. Deliver better, faster user experience: Get new features and applications into the hands of users faster and more frequently.
    Starting Price: Free
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    Treblle

    Treblle

    Treblle

    Treblle: A lightweight SDK for accelerated REST-based API development, see metadata for every API request with real-time API traffic monitoring, get powerful analytics and API governance features alongside API automated docs, and automated API security audits for every single request. Simplify workflows, enhance security with support for 18+ languages and frameworks for seamless integration. Empower your teams to build, ship, and maintain APIs faster.
    Starting Price: $99 per month
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    BoxyHQ

    BoxyHQ

    BoxyHQ

    Security Building Blocks for Developers. BoxyHQ offers a suite of open-source APIs for security and privacy, helping engineering teams build and ship compliant applications faster, reducing Time to Market without sacrificing their security posture. 1. Enterprise Single Sign On (SAML/OIDC SSO) 2. Directory Sync 3. Audit Logs 4. Data Privacy Vault (PII, PCI, PHI compliant)
    Starting Price: $0
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    NetScaler

    NetScaler

    Cloud Software Group

    Application delivery at scale can be complex. Make it simpler with NetScaler. Firmly on-prem. All-in on cloud. Good with hybrid. Whichever you choose, NetScaler works the same across them all. NetScaler is built with a single code base using a software-based architecture, so no matter which ADC form factor you choose — hardware, virtual machine, bare metal, or container — the behavior will be the same. Whether you are delivering applications to hundreds of millions of consumers, hundreds of thousands of employees, or both, NetScaler helps you do it reliably and securely. NetScaler is the application delivery and security platform of choice for the world’s largest companies. Thousands of organizations worldwide — and more than 90 percent of the Fortune 500 — rely on NetScaler for high-performance application delivery, comprehensive application and API security, and end-to-end observability.
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    Orca Security

    Orca Security

    Orca Security

    Designed for organizations operating in the cloud who need complete, centralized visibility of their entire cloud estate and want more time and resources dedicated to remediating the actual risks that matter, Orca Security is an agentless cloud Security Platform that provides security teams with 100% coverage their entire cloud environment. Instead of layering multiple siloed tools together or deploying cumbersome agents, Orca combines two revolutionary approaches - SideScanning, that enables frictionless and complete coverage without the need to maintain agents, and the Unified Data Model, that allows centralized contextual analysis of your entire cloud estate. Together, Orca has created the most comprehensive cloud security platform available on the marketplace.
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    Cortex Cloud

    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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    Apiiro

    Apiiro

    Apiiro

    Complete risk visibility with every change, from design to code to cloud. Industry-first Code Risk Platform™ A 360° view of security & compliance risks across applications, infrastructure, developers’ knowledge & business impact. Data-driven decisions are better decisions. Understand your security & compliance risks with a real-time inventory of apps & infra code behavior, devs knowledge, 3rd-party security alerts & business impact. From design to code to cloud. Security architects don’t have time to review every change & investigate every alert. Make the most of their expertise by analyzing context across developers, code & cloud to identify risky material changes & automatically build an actionable workplan. No one likes manual risk questionnaires, security & compliance reviews - they’re tedious, inaccurate & not synced with the code. When the code is the design, we must do better - trigger contextual & automatic workflows.
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    AlertSite

    AlertSite

    SmartBear

    AlertSite is the 'Early Warning System' you can trust to monitor your websites, web apps, and APIs from all over the world and within your private networks. You shouldn't be burdened by the fear and the consequence of whether an alert is real or false. AlertSite monitors your UI and API layer for availability, performance, and functionality without the alert fatigue of other monitoring tools. Creating Web and API monitors in AlertSite is intuitive and effortless. Codelessly add new web monitors with DejaClick, our point-and-click web recorder, and API Monitors in just a few clicks using an API Endpoint URL or OpenAPI Specification file. Or, reuse test cases like Selenium Scripts or SoapUI tests to create new monitors. Don't let false alerts and erroneous data cloud your visibility into application health.
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    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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