Capsule Security
Runtime security for AI agents that watches their reasoning and actions, then blocks manipulation, risky tool calls and data exfiltration before they complete.
About Capsule Security
Capsule Security, a Tel Aviv company founded in 2025, treats AI agents as a new class of privileged user.
It runs as an independent layer across frameworks and environments, monitoring each agent's reasoning, interactions and execution to spot manipulation, abnormal behavior and attempts to move data out.
When an action looks unsafe, it steps in at runtime to block the command, tool call or exposure.
It secures both third-party and custom agents, with support listed for Cursor, Claude Code, Copilot Studio, ServiceNow and Salesforce Agentforce, and fits into existing security workflows. The company was named a finalist in CrowdStrike's latest startup accelerator.
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