6 Best Runtime API Security Tools for Kubernetes & Cloud-Native Environments in 2026
Why isn’t your API gateway enough? Gateways control access; WAFs block known signatures. Neither sees what happens at the application layer—where SQL injection executes, where SSRF reaches your metadata service, where lateral movement begins. Runtime security monitors live behavior, not just perimeter traffic. What’s the real problem with API security tools? Most see only one layer. API security sees traffic patterns. Container security sees process execution.