List of the Top 10 API Security Software for Windows in 2025

Graylog empowers security teams with comprehensive visibility into logs, events, and API interactions, which is crucial for identifying threats, probing incidents, and executing informed responses. The Graylog Enterprise solution streamlines log management on a large scale, featuring robust search capabilities, alerting mechanisms, and correlation tools to expedite root cause analysis. Enhancing this foundation, Graylog Security introduces sophisticated threat detection, preconfigured content for prevalent attack methods, and seamless integration with Security Operations Centers (SOCs). Graylog API Security broadens this visibility to encompass the expanding API landscape, automatically uncovering APIs, pinpointing sensitive data vulnerabilities, and monitoring for data exfiltration in real-time. Collectively, the Graylog suite provides a cohesive and economical solution for security operations and API safeguarding—whether deployed on-premises or in the cloud—enabling teams to efficiently detect, investigate, and address critical issues.

SKUDONET offers IT executives an affordable solution that emphasizes ease of use and adaptability, ensuring optimal performance and security for IT services. With this innovative platform, you can seamlessly improve the security and reliability of your applications through an open-source ADC, allowing for significant cost savings and unparalleled flexibility within your IT framework. This approach not only streamlines operations but also empowers organizations to respond swiftly to changing technology needs.

Ambassador Edge Stack serves as a Kubernetes-native API Gateway that delivers ease of use, robust security, and the capability to scale for extensive Kubernetes environments globally. It simplifies the process of securing microservices by offering a comprehensive suite of security features, which encompass automatic TLS, authentication, and rate limiting, along with optional WAF integration. Additionally, it facilitates fine-grained access control, allowing for precise management of user permissions. This API Gateway functions as an ingress controller based on Kubernetes, and it accommodates an extensive array of protocols, such as gRPC, gRPC Web, and TLS termination, while also providing traffic management controls that help maintain resource availability and optimize performance. Overall, Ambassador Edge Stack is designed to meet the complex needs of modern cloud-native applications.

You have the option to utilize your preferred debugging software to address issues with your Kubernetes services on a local level. Telepresence, an open-source solution, facilitates the execution of a single service locally while maintaining a connection to a remote Kubernetes cluster. Originally created by Ambassador Labs, known for their open-source development tools like Ambassador and Forge, Telepresence encourages community participation through issue submissions, pull requests, and bug reporting. Engaging in our vibrant Slack community is a great way to ask questions or explore available paid support options. The development of Telepresence is ongoing, and by registering, you can stay informed about updates and announcements. This tool enables you to debug locally without the delays associated with building, pushing, or deploying containers. Additionally, it allows users to leverage their preferred local tools such as debuggers and integrated development environments (IDEs), while also supporting the execution of large-scale applications that may not be feasible to run locally. Furthermore, the ability to connect a local environment to a remote cluster significantly enhances the debugging process and overall development workflow.

Authress provides an efficient Authorization API tailored for your application, as managing authorization can become intricate very quickly. While it may appear straightforward at first glance, numerous underlying complexities can arise, making it an undertaking best not approached alone. Achieving effective authorization is a time-consuming task, with straightforward implementations averaging around 840 hours, and this duration increases significantly with the addition of more features to your application. Your application holds the potential to be your most significant security risk; without proper expertise, it can become vulnerable to malicious threats. Failing to implement robust authorization exposes you to the dangers of user data breaches, regulatory non-compliance, and substantial financial repercussions. Authress offers a secure authorization API, allowing you to avoid the pitfalls of developing your own authorization framework by simply leveraging our comprehensive solution. Designed by developers for developers, it features granular permissions that let you establish multiple levels of access organized by user role, allowing for precise control. Additionally, with seamless identity provider integrations, connecting to any ID provider is as simple as making an API call, ensuring smooth and secure user authentication. This way, you can focus on enhancing your application while leaving the complexities of authorization to us.

Resurface serves as a specialized tool for runtime API security, enabling continuous scanning that facilitates immediate detection and response to potential threats and vulnerabilities. Designed specifically for API data, it captures every request and response payload, including those from GraphQL, allowing users to quickly identify possible risks and failures. With its real-time alert system, Resurface notifies users about data breaches, providing zero-day detection capabilities. Additionally, it aligns with the OWASP Top 10, offering alerts on various threats while employing comprehensive security patterns. As a self-hosted solution, it ensures that all data remains first-party and secure. Unique in its capabilities, Resurface can conduct extensive inspections at scale, efficiently detecting active attacks as it processes millions of API calls. Leveraging advanced machine learning models, it identifies unusual patterns and recognizes low-and-slow attack strategies, enhancing overall API security measures. This combination of features makes Resurface a crucial tool for any organization serious about safeguarding their APIs and mitigating risks.

Pynt is a cutting-edge API Security Testing Platform that unveils authenticated API vulnerabilities through simulated attacks. We assist numerous organizations, such as Telefonica, Sage, and Halodoc, in consistently monitoring, classifying, and preemptively addressing inadequately secured APIs before malicious hackers can exploit them. Leveraging a distinctive hacking methodology and an integrated shift-left approach, Pynt employs proprietary attack scenarios to identify genuine threats. In addition, it facilitates the discovery of APIs and provides recommendations for rectifying confirmed vulnerabilities. With the trust of thousands of businesses, Pynt plays a crucial role in safeguarding their applications. Many companies incorporate Pynt into their application security strategies to ensure robust protection against potential threats. This reliance on Pynt underscores its importance in the ever-evolving landscape of API security.

Managing application delivery at scale presents various challenges, yet NetScaler streamlines this task effectively. Whether your operations are entirely on-premises, completely cloud-based, or situated in a hybrid model, NetScaler ensures seamless functionality across all environments. Built on a unified code base, its architecture guarantees that performance remains consistent, whether utilizing hardware, virtual machines, bare metal, or containers. Regardless of whether your user base includes hundreds of millions of customers or just hundreds of thousands of employees, NetScaler promises dependable and secure application delivery. Recognized as the leading application delivery and security solution among the world's largest enterprises, NetScaler is relied upon by thousands of organizations, with over 90 percent of the Fortune 500 counting on it to provide high-performance application services, strong application and API security, and exhaustive visibility into all operations. This extensive reliance highlights NetScaler's crucial importance in the contemporary digital landscape, emphasizing its role in not just meeting but exceeding user expectations.

AppSecure equips businesses with the foresight and capability to prevent sophisticated cyberattacks from highly skilled adversaries through its innovative security strategies. By pinpointing essential vulnerabilities that could be targeted, our state-of-the-art security solutions guarantee these issues are consistently addressed and resolved. We enhance your overall security framework while scrutinizing concealed weaknesses from the perspective of a potential intruder. Evaluate your security team's readiness, detection proficiency, and response plans against relentless cyber threats that aim at your network's weak points. Our thorough approach emphasizes identifying and correcting major security lapses by meticulously testing your APIs according to OWASP standards, alongside tailored test scenarios designed to prevent future complications. With our pentesting-as-a-service model, we deliver continuous, expert-led security evaluations that not only discover and fix vulnerabilities but also strengthen your website's defenses against the evolving nature of cyber threats, ensuring it stays secure, compliant, and trustworthy. In addition, AppSecure is committed to cultivating a robust security environment that evolves alongside new challenges, fostering not just resilience but also peace of mind for our clients.

Astra is a comprehensive API security testing platform that helps businesses discover, analyze, and secure every API in their network—documented or not. Designed for modern engineering and security teams, it automatically detects Shadow, Zombie, and Orphan APIs to eliminate blind spots across your entire infrastructure. Astra’s continuous discovery engine integrates with AWS, GCP, and on-prem environments to provide full visibility into API traffic, parameters, and data exposure risks. Its Dynamic Application Security Testing (DAST) engine scans APIs for over 10,000 known vulnerabilities, including OWASP Top 10, misconfigurations, and real-world CVEs. Beyond automation, Astra’s manual penetration testing by certified experts (OSCP, CEH, CRTP, PCI, AWS-certified) uncovers complex business logic vulnerabilities that scanners often miss. The Authorization Matrix module allows teams to visualize and correct access control flaws before they turn into breaches. Real-time dashboards and detailed remediation guides make it easy for teams to track progress and strengthen security posture. Astra integrates seamlessly with developer tools such as Postman, Burp Suite, GitHub, and CI/CD pipelines, enabling “shift-left” security across the software lifecycle. Built for scalability, it continuously learns from traffic and code changes to provide incremental testing after every API update. Trusted by over 1,000 engineering teams and top brands worldwide, Astra delivers continuous, agentic, and actionable API protection—helping organizations stay one step ahead of evolving threats.