Best API Security Software
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Compare the Top API Security Software as of October 2025
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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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1
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
SKUDONET
SKUDONET
SKUDONET Enterprise Edition is an Application Delivery and Security Platform built on Linux Debian 12.5 LTS for critical enterprise environments. Formerly known as Zevenet, it provides advanced L4/L7 load balancing, integrated WAF, TLS management with Let’s Encrypt and wildcard support, and protocol-aware traffic inspection across on-premises, hybrid, or cloud deployments, including SkudoCloud SaaS. A free trial is available for evaluation on the SKUDONET website. Key Features & Benefits: • High Availability: Clustering and failover to minimize downtime. • Advanced Security: WAF, L7 filtering, DoS protection, TLS with Let’s Encrypt and wildcard support. • Scalability: Optimized for high-throughput workloads with multi-core processing and efficient packet handling. • Traffic Control: Session persistence, custom routing rules, and granular L4/L7 inspection. • Centralized Management: Unified dashboard for configuration, monitoring, and policy automation.Starting Price: $1736/year/appliance -
3
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 -
4
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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Cequence Security
Cequence Security
Start analyzing and protecting your APIs with passive, inline or API-based integration with any existing network component – API gateway, proxy, CDN or ingress controller. Predefined policies, fine-tuned using threat patterns observed in protecting billions of API transactions per day delivers unmatched, out-of-the-box protection. A rich user interface and an open, API-based architecture enables integration with threat intelligence feeds, CI/CD framework tools, other security components, and SIEM/SOAR/XDR solutions. Patented ML-based analysis eliminates JavaScript and SDK integration pen-alties such as extended development cycles, slow page loads and forced mobile-app upgrades. ML-based analysis generates a unique Behavioral Fingerprint to determine malicious intent and continually tracks attackers as they retool. -
6
Traceable
Traceable
Meet the Industry’s Context-Aware API Security Platform Traceable identifies all of your APIs, and evaluates your API risk posture, stops API attacks that lead to incidents such as data exfiltration, and provides analytics for threat hunting and forensic research. With our solution, you can confidently discover, manage and secure all of your APIs, quickly deploy, and easily scale to meet the ongoing needs of your organization. If you’re planning on improving the data security posture in your APIs, Traceable would love the opportunity to discuss how we could help and share some of our lessons learned from working with enterprise customers like Canon, Informatica, Outreach, and many others.Starting Price: $0 -
7
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 -
8
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 -
9
Treblle
Treblle
Treblle is a federated API Intelligence platform built for enterprises that need full visibility, control, and security over their APIs. With a single integration, Treblle provides real-time API Discovery, Observability, Analytics, Governance, Runtime Security, and Developer Portals. It supports on-prem and private cloud deployments to meet strict compliance and data privacy requirements. Treblle helps teams shift left by surfacing API issues early in development and ensuring consistency across environments. Its AI-powered Integration Assistant simplifies onboarding and reduces manual effort. Trusted by global enterprises and recognized over 15 times by Gartner, Treblle accelerates innovation while giving you complete control over your API landscape.Starting Price: $25 per month -
10
Authress
Rhosys
Authress, Complete Auth API for B2B. Authentication & Authorization gets complicated quickly, even if it appears easy, there is a lot of hidden complexity in authorization, you don’t want to do it on your own. It takes time to get authorization right In simple cases, it takes an average software team 840 hours to implement authorization logic. As you add features to your application, this number grows rapidly. Without expertise, you leave your door wide open to malicious attacks. You risk compromising your user data, non-compliance with local regulations, and massive business losses. * Secure authorization API--Instead of building your own authorization logic, call our API * Granular permissions--Define multiple levels of access and group them by user roles. As granular as you want * Identity Provider integrations--Plug in any of your preferred ID providers with a simple API call. * SSO and full user managementStarting Price: $1.10 per month -
11
Moesif
Moesif
Powerful user behavior API analytics to help you understand customer API usage and create great experiences. Debug issues quickly with high-cardinality API logs. Drill down by API parameters, body fields, customer attributes, and more. Deeply understand who is using your APIs, how they are used, and payloads their sending. Pinpoint where customers drop off in your funnel and see how to optimize your product strategy. Automatically email customers approaching rate limits, using deprecated APIs, and more based on behavior. Understand how developers adopt your APIs. Measure and improve funnel metrics like activation rate and Time to First Hello World (TTFHW). Segment developers by demographic info, marketing attribution SDK used, and more to discover what best improve your north star metrics metrics and focus on the activities that matter.Starting Price: $85 per month -
12
APIsec
APIsec
Hackers are targeting loopholes in API logic. Learn how to secure APIs and prevent breaches and data leaks. APIsec finds critical flaws in API logic that attackers target to gain access to sensitive data. Unlike traditional security solutions that look for common security issues, such as injection attacks and cross-site scripting, APIsec pressure-tests the entire API to ensure no endpoints can be exploited. With APIsec you’ll know about vulnerabilities in your APIs before they get into production where hackers can exploit them. Run APIsec tests on your APIs at any stage of the development cycle to identify loopholes that can unintentionally give attackers access to sensitive data and functionality. Security doesn’t have to slow down Development. APIsec runs at the speed of DevOps, giving you continuous visibility into the security of your APIs. No need to wait for the next scheduled pen-test, APIsec tests are complete in minutes.Starting Price: $500 per month -
13
TeejLab is at the forefront of applying data science and machine learning to help organizations with evolving challenges of API economy. The first and only industry solution designed for API governance at enterprises of global scale. What is your security and compliance posture vis a vis mainframe and legacy apps communicating with internal and external information systems via APIs? We built world’s first software composition analysis system for discovering shadow/hidden, private/public APIs via a curated knowledge base. What Google did to websites, TeejLab is doing to Web APIs. Our modular product portfolio is designed to meet varied API Governance needs of enterprises and communities, cost-efficiently while providing flexibility to add additional capabilities as those needs evolve. Whether you are an engineering shop looking to discover and benchmark APIs or a well-established API consumer or producer of APIs ready to expand your product portfolio, we have it covered.Starting Price: $179 per month
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14
BugDazz
SecureLayer7
BugDazz API Security Scanner by SecureLayer7 is a comprehensive tool designed to automatically detect vulnerabilities, misconfigurations, and security gaps in API endpoints, aiding security teams in protecting digital assets against increasing API-related threats and potential exploits. It offers real-time scanning capabilities, enabling the automatic detection of vulnerabilities as they arise. It supports authentication and access control management, allowing for the management of API controls within a single platform. BugDazz assists in achieving compliance by accelerating the generation of reports for standards such as PCI DSS and HIPAA. It integrates seamlessly with existing CI/CD pipelines, facilitating the acceleration of product rollouts. The scanner goes beyond standard OWASP Top 10 vulnerabilities, providing comprehensive protection against critical API security risks.Starting Price: $3,999 per year -
15
Utilihive
Greenbird Integration Technology
Utilihive is a cloud-native big data integration platform, purpose-built for the digital data-driven utility, offered as a managed service (SaaS). Utilihive is the leading Enterprise-iPaaS (iPaaS) that is purpose-built for energy and utility usage scenarios. Utilihive provides both the technical infrastructure platform (connectivity, integration, data ingestion, data lake, API management) and pre-configured integration content or accelerators (connectors, data flows, orchestrations, utility data model, energy data services, monitoring and reporting dashboards) to speed up the delivery of innovative data driven services and simplify operations. Utilities play a vital role towards achieving the Sustainable Development Goals and now have the opportunity to build universal platforms to facilitate the data economy in a new world including renewable energy. Seamless access to data is crucial to accelerate the digital transformation. -
16
Reblaze
Reblaze
Reblaze is the leading provider of cloud-native web application and API protection, providing a fully managed security platform. Reblaze’s all-in-one solution supports flexible deployment options (cloud, multi-cloud, hybrid, data center and service mesh), deployed in minutes and includes state-of-the-art Bot Management, API Security, next-gen WAF, DDoS protection, advanced rate limiting, session profiling, and more. Unprecedented real time traffic visibility as well as highly granular policies enables full control of your web traffic. Machine learning provides accurate, adaptive threat detection, while dedicated VPC deployment ensures maximum privacy, performance and protection while minimizing overhead costs. Reblaze customers include Fortune 500 companies and innovative organizations across the globe. -
17
Wallarm API Security Platform
Wallarm
Built by security practitioners for practitioners, Wallarm's API security platform provides robust protection for APIs, web apps, microservices, and serverless workloads in cloud-native, multi-cloud, Kubernetes, and on-premises environments. It delivers coverage against OWASP API Top-10 risks and advanced threats, ensuring visibility and rapid vulnerability remediation. The Wallarm platform is a best-in-class API security solution that supports multiple deployment options. Trusted by security teams globally, Wallarm's API security platform is the fastest, easiest, and most effective way to stop API attacks. Customers choose Wallarm to protect their applications and AI agents because the platform delivers a complete inventory of APIs, patented AI/ML-based abuse detection, real-time blocking, and an API SOC-as-a-service. -
18
Imperva API Security
Imperva
Imperva API Security protects your APIs with an automated positive security model, detecting vulnerabilities in your applications, and shielding them from exploitation. Organizations manage a minimum of 300 APIs on average. Imperva’s API Security amplifies your security posture by automatically generating a positive security model for every uploaded API swagger file. APIs are being churned out faster than security teams can review, influence, and sign off on before they’re pushed into production. Imperva’s API Security enables your teams to stay ahead of DevOps via automation. Imperva API Security empowers your approach with out-of-the-box security rules adjusted to your APIs. This ensures complete OWASP API coverage and promotes visibility for all security events per API endpoint. With API Security, simply upload the OpenAPI specification file that your DevOps team has created and Imperva will automatically build a positive security model. -
19
CloudGuard AppSec
Check Point Software Technologies
Automate your application security and API protection with AppSec powered by contextual AI. Stop attacks against your web applications with a fully automated, cloud-native application security solution. Eliminate the need to manually tune rules and write exceptions every time you make an update to your web application or APIs. Modern applications demand modern security solutions. Protect your web applications and APIs, eliminate false positives and stop automated attacks against your business. CloudGuard uses contextual AI to prevent threats with absolute precision, without any human intervention as the application is updated. Protect web applications, and prevent OWASP Top 10 attacks. From implementation through runtime, CloudGuard AppSec automatically analyzes every user, transaction, and URL to create a risk score to stop attacks without creating false positives. In fact, 100% of CloudGuard customers maintain fewer than 5 rule exceptions per deployment. -
20
aapi
aapi
Act on identity events in other apps to make identity experiences more seamless, secure, compliant, and productive. Automatically embed the correct real-time actions for users and teams to efficiently act on data in downstream apps with a single click. Next-generation granular access into specific functions of apps, surpassing existing PAM and CASB solutions for true zero trust. Events, like identity provisioning and suspicious activity, are responded to by aapi to automate identity, application, and security responses. aapi automatically embeds correct real-time actions for users and teams to act on data in downstream apps within their chosen application with a single click, while access is protected by your IAM. Users are given access to only the individual features within apps they need, while keeping everything else safe and secure, all directly through your IAM.Starting Price: $4 per user per month -
21
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 -
22
RestCase
RestCase
API Design and Development. Start developing your APIs with Design-first and Security-first approach using RestCase. Design-first approach takes place before or in the early stage of the API development, and the initial output of this approach is a human and a machine-readable definition of the API. Since it is critical to focus on API security from the start, RestCase analyzes the API definions for security issues and other vulnerabilities. Design-first Development Design APIs in a powerful and intuitive visual designer that is built for speed and efficiency, without any loss in design consistency. Use the collaboration capabilities to reduce friction in transitioning to design-first / spec-first development practices, to increase the API adoption internally, and to get ideas and issues while designing. Discover the benefits of the design-first approach like fast feedback loops, effective feedback, and minimal wasted effort. Security-first Development. Building your API -
23
PingDataGovernance
Ping Identity
Digital transactions and data are exploding, but authorization logic is scattered across your enterprise. Updating, auditing and managing that logic can be tedious or even impossible. PingDataGovernance provides centralized authorization policies that can evaluate identity attributes, entitlements, consents, the requesting app or other contextual information to authorize critical actions and the retrieval of high-value data. You’ll have the agility to react instantly without sacrificing security or regulatory compliance. Anyone can update policies in minutes with a simple drag-and-drop UI. And you can choose which teams it’s most appropriate to give access to so they can manage policies—or any portion of them. Unlike traditional role-based access control (RBAC), dynamic authorization assembles key contextual data attributes and evaluates the validity of access requests in real time. This lets you centrally enforce policies to comply with regulatory requirements. -
24
Salt
Salt Security
The Salt Security API Security Platform protects APIs across their full lifecycle – build, deploy and runtime phases. Only Salt can capture and baseline all API traffic -- all calls and responses -- over days, weeks, even months. Salt uses this rich context to detect the reconnaissance activity of bad actors and block them before they can reach their objective. The Salt API Context Engine (ACE) architecture discovers all APIs, pinpoints and stops API attackers, and provides remediation insights learned during runtime to harden APIs. Only Salt applies cloud-scale big data to address API security challenges. Salt applies its AI and ML algorithms, which have been in the market for more than four years, to provide real-time analysis and correlation across billions of API calls. That level of context is essential for rich discovery, accurate data classification, and the ability to identify and stop “low and slow” API attacks, which occur over time. On prem solutions simply lack the data. -
25
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 -
26
UltraAPI
Vercara
API protection for fraud, data loss, and business disruption across web and mobile applications. UltraAPI is a comprehensive API security solution designed to secure your entire API landscape, including external APIs. As a unified solution, UltraAPI protects against malicious bots and fraudulent activity while ensuring regulatory compliance. Understand your external API attack surface with our cloud API security solutions, providing an attacker’s view of your APIs, regardless of their location. Our secure API platform continuously reveals new API endpoints, ensuring your security compliance teams are fully informed. Ensure API compliance by delivering real-time runtime visibility, testing, and monitoring. UltraAPI makes it simpler to discover and remediate errors that can result in data loss and fraud and ensure your APIs conform to security and regulatory requirements. Detect and prevent API attacks with API bot mitigation that shields your digital infrastructure. -
27
AppSecure Security
AppSecure Security
Anticipate and prevent system attacks from the most sophisticated adversaries with AppSecure’s offensive security stance. Discover critical exploitable vulnerabilities and continuously patch them with our advanced security solutions. Continuously fortify your security posture and uncover concealed vulnerabilities from a hacker’s perspective. Evaluate the efficacy of your security team’s readiness posture, detection, and response measures to tenacious hacker attacks on your network’s susceptible pathways. Identify and redress the key security lapses with our balanced approach that tests your APIs in accordance with the OWASP paradigm, along with tailored test cases for preventing any recurrences. Pentest as a service offers continuous, expert-led security testing to identify and remediate vulnerabilities, enhancing your website’s defenses against evolving cyber threats and making it secure, compliant, and reliable.
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