42Crunch API Protection

42Crunch API Protection is an API-native runtime threat protection and micro-firewall solution designed to secure enterprise application programming interfaces (APIs) against unauthorized access, malicious injection attacks, and logic exploits. Built on a positive security model, 42Crunch API Protection enforces strict adherence to API contractual definitions specified in OpenAPI / Swagger schemas, automatically inspecting incoming HTTP requests and outgoing server responses against authorized parameter constraints, data types, and payloads. The solution deploys as a lightweight, containerized API Firewall alongside modern microservices, Kubernetes clusters, and API gateways, inspecting traffic at wire speed with minimal latency overhead. Any API request that deviates from the approved schema—such as requests containing SQL injection vectors, cross-site scripting (XSS) payloads, unexpected header fields, or illegal parameter values—is immediately blocked at the perimeter before reaching backend application services. Additionally, the firewall prevents sensitive data leakage by validating outbound server responses to ensure confidential information is never unintentionally exposed. 42Crunch API Protection provides security and DevOps teams with automated, scalable API runtime defense that seamlessly aligns with modern CI/CD automation and containerized microservice architectures.