List of the Top 13 On-Prem API Security Software in 2025

Designed for optimal performance and effective resource management, KrakenD is capable of handling an impressive 70,000 requests per second with just a single instance. Its stateless architecture promotes effortless scalability, eliminating the challenges associated with database maintenance or node synchronization. When it comes to features, KrakenD excels as a versatile solution. It supports a variety of protocols and API specifications, providing detailed access control, data transformation, and caching options. An exceptional aspect of its functionality is the Backend For Frontend pattern, which harmonizes multiple API requests into a unified response, thereby enhancing the client experience. On the security side, KrakenD adheres to OWASP standards and is agnostic to data types, facilitating compliance with various regulations. Its user-friendly nature is bolstered by a declarative configuration and seamless integration with third-party tools. Furthermore, with its community-driven open-source edition and clear pricing structure, KrakenD stands out as the preferred API Gateway for enterprises that prioritize both performance and scalability without compromise, making it a vital asset in today's digital landscape.

The attack surface encompasses all potential entry points that could be exploited against your security defenses, representing the total information you expose to external threats. It essentially reflects the vulnerabilities available for hackers to leverage in order to gain unauthorized access to your network. Professional hackers typically adhere to a strategy known as the cyber kill chain when selecting their targets. The initial phase of this approach involves a thorough assessment of the target's attack surface, often referred to as advanced reconnaissance. By effectively minimizing your attack surface, you can significantly lower the likelihood of successful cyberattacks. The cyber kill chain serves as a framework for identifying and monitoring every phase of a cyber intrusion, extending from the initial reconnaissance to the final data extraction process. This comprehensive understanding of the attack surface is crucial for developing robust cybersecurity measures.

Graylog Security, built on the robust Graylog Platform, stands out as a premier solution for threat detection, investigation, and response (TDIR), designed to enhance cybersecurity operations through a user-friendly workflow, an efficient analyst experience, and cost-effectiveness. This solution aids security teams in minimizing risks and boosting essential metrics such as Mean Time to Detect (MTTD) by refining threat detection capabilities while simultaneously decreasing Total Cost of Ownership (TCO) thanks to its inherent data routing and tiering features. Moreover, Graylog Security speeds up incident response times by allowing analysts to swiftly tackle urgent alerts, effectively lowering Mean Time to Response (MTTR). With its integrated SOAR capabilities, Graylog Security not only automates tedious tasks and streamlines workflows but also significantly improves response efficiency, thereby enabling organizations to proactively identify and mitigate cybersecurity threats. This comprehensive approach makes Graylog Security a vital asset for any organization looking to strengthen its cybersecurity posture.

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.

The leading hybrid and multi-cloud platform provides an exceptional array of security features, including next-generation WAF, API Security, RASP, Enhanced Rate Limiting, Bot Defense, and DDoS protection, specifically designed to overcome the shortcomings of traditional WAF systems. Conventional WAF solutions were inadequate for the challenges posed by modern web applications that function across cloud, on-premise, or hybrid environments. Our state-of-the-art web application firewall (NGWAF) and runtime application self-protection (RASP) solutions not only bolster security measures but also ensure reliability and optimal performance, all while offering the most competitive total cost of ownership (TCO) in the industry. This forward-thinking strategy not only satisfies the requirements of the current digital environment but also equips organizations to tackle future web application security challenges effectively. By continuously evolving our solutions, we aim to provide businesses with the tools necessary to navigate an ever-changing security landscape.

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.

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.

Akto is a rapid, open-source API security platform that enables users to set up in just one minute. Security teams utilize Akto to keep an ongoing inventory of APIs, assess them for vulnerabilities, and identify issues during runtime. The platform includes tests for all categories from the OWASP Top 10 and HackerOne Top 10, such as Broken Object Level Authorization (BOLA), authentication flaws, Server-Side Request Forgery (SSRF), Cross-Site Scripting (XSS), and various security configurations. With its robust testing engine, Akto conducts a range of business logic tests by analyzing traffic data to discern API usage patterns, effectively minimizing false positives. Additionally, Akto supports integration with a variety of traffic sources, including Burpsuite, AWS, Postman, GCP, and various gateways, enhancing its usability across different environments. This adaptability makes Akto a valuable tool for ensuring the security of APIs in diverse operational settings.

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.

Utilihive is a cloud-native platform for big data integration, provided as a managed service in the Software as a Service (SaaS) model. Renowned as the leading Enterprise Integration Platform as a Service (iPaaS), Utilihive is tailored specifically for applications within the utility and energy sectors. The platform not only supplies the essential technical components such as connectivity, integration, data ingestion, and management of data lakes but also includes ready-to-use integration content like connectors, data flows, orchestrations, and a utility data model. Furthermore, it offers energy services along with monitoring and reporting dashboards, facilitating rapid deployment of data-centric services while streamlining operational processes for users. By leveraging these features, organizations can achieve greater efficiency and responsiveness in managing their energy and utility data needs.

Developers can enhance their security infrastructure with essential building blocks provided by BoxyHQ. This platform features a comprehensive set of APIs designed for enterprise compliance, security, and privacy, enabling engineering teams to accelerate their Time to Market while maintaining robust security measures. With minimal coding effort, teams can integrate a variety of critical functionalities, whether they choose a SaaS model or a self-hosted solution. The available features include Enterprise Single Sign-On (SAML/OIDC SSO), Directory Synchronization, detailed Audit Logs, and a Data Privacy Vault that adheres to PII, PCI, and PHI compliance standards. By leveraging these tools, organizations can effectively safeguard their data and streamline user authentication processes.

Open-appsec is an innovative open-source project that leverages machine learning to deliver proactive security measures for web applications and APIs, safeguarding against the OWASP Top 10 vulnerabilities as well as zero-day exploits. This system can be seamlessly integrated as an add-on to Kubernetes Ingress, NGINX, Envoy, and various API Gateways. The core engine of open-appsec observes typical user interactions with your web application, utilizing this behavior data to identify any requests that deviate from established norms, subsequently forwarding these anomalies for further scrutiny to determine their potential maliciousness. To achieve this, open-appsec employs two distinct machine learning models: 1. A supervised model developed offline, drawing insights from millions of both malicious and harmless requests. 2. An unsupervised model that evolves in real time within the protected environment, focusing on the unique traffic patterns of that specific setting. In addition to its robust detection capabilities, open-appsec streamlines maintenance by eliminating the need for frequent threat signature updates and exception management, which are often prerequisites in many conventional WAF solutions. Overall, open-appsec not only enhances security but also reduces the complexity typically associated with managing web application firewalls.

Orca Security has established itself as a leader in agentless cloud security, earning the trust of numerous enterprises worldwide. By utilizing its innovative SideScanning™ technology and Unified Data Model, Orca enables businesses to securely transition and expand their operations in the cloud. Through the Orca Cloud Security Platform, organizations benefit from unparalleled risk coverage and visibility across major platforms including AWS, Azure, Google Cloud, and Kubernetes, ensuring a robust security posture. This comprehensive approach allows enterprises to effectively manage their cloud environments with confidence.