# execd daemon `execd` is the Go/Gin REST daemon that runs inside every [[OpenSandbox]] sandbox. It exposes command execution, file operations, and metrics over HTTP, and is the component the control plane actually talks to when it needs to run anything inside the isolation boundary. It explains how OpenSandbox executes work: the host-side control plane stays outside the sandbox, while `execd` does the in-sandbox operations. ## Related - [[OpenSandbox]] - [[OpenSandbox Sandbox Protocol]] - [[AI Agents]]