Best Free API Security Software

Graylog gives security teams full visibility across logs, events, and API activity—essential for detecting threats, investigating incidents, and responding with precision. Graylog Enterprise centralizes log management at scale with powerful search, alerting, and correlation to accelerate root cause analysis. Graylog Security builds on that foundation with advanced threat detection, prebuilt content for common attack techniques, and seamless SOC integration. Graylog API Security extends this visibility into the growing API layer, automatically discovering APIs, identifying sensitive data exposure, and detecting data exfiltration in real time. Together, the Graylog platform delivers unified, cost-effective security operations and API protection—on-prem or in the cloud—so teams can detect, investigate, and respond to what matters most.

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

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.

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 management

Pynt is an innovative API Security Testing platform exposing verified API threats through simulated attacks. We help hundreds of companies such as Telefonica, Sage, Halodoc, and more, to continuously monitor, classify and attack poorly secured APIs, before hackers do. Pynt's leverages an integrated shift-left approach, and unique hack technology using home-grown attack scenarios, to detect real threats, discover APIs, suggest fixes to verified vulnerabilities, thereby eliminating the API attack surface risk. Thousands of companies rely on Pynt to secure the no. 1 attack surface - APIs, as part of their AppSec strategy.