Operant AI provides a Runtime AI Application Defense Platform that protects cloud and AI applications during execution. The platform uses a 3D approach combining discovery, detection, and defense to secure APIs, services, and identities in cloud environments. The company's technology addresses runtime attacks including data exfiltration, AI supply chain attacks, model theft, and prompt injection. The platform deploys through a single-step helm installation and provides real-time visibility and defense for cloud application stacks. Operant AI focuses on protecting the infrastructure, APIs, and application layers of live cloud environments, operating beyond traditional firewall boundaries. The solution targets security and platform teams managing cloud-native and AI applications. The company was founded by engineers with backgrounds at Apple, VMware, Arm, and Google. Operant AI raised Series A funding in September 2024 and has been recognized in Gartner's 2025 Market Guide for API Protection and Innovation Report for MCP Gateways, as well as in Forrester's Zero Trust landscape. The company is also an active board member of the Coalition for Secure AI (CosAI). Operant AI is headquartered in San Francisco, California.