Monitor AI agent behavior and intervene at runtime

Capsule Security is a runtime security platform that monitors AI agent behavior and stops unsafe actions before they execute.

It protects organizations from the most critical risks created by AI agents: rogue agent behavior, adversarial attacks, dangerous or unauthorized actions, sensitive data leakage, vulnerable MCP servers and tools, and malicious agent skills. The platform continuously discovers agents, servers, tools and skills across the enterprise, giving security teams a complete, up-to-date inventory of how they are used.

Coverage spans enterprise AI platforms such as Salesforce Agentforce, Microsoft Copilot Studio and ChatGPT Enterprise; coding agents including Cursor, Claude Code and GitHub Copilot; and cloud AI platforms such as AWS Bedrock, Azure AI Foundry and Google Cloud Vertex AI.

Capsule’s Guardian agent analyzes every prompt, reasoning step, tool call and action, using fine-tuned small language models that read the agent’s intent and enrich each decision with context from EDR, identity providers and network security tools. It requires no proxies, gateways or SDKs.