Anthropic has announced two new security features for its Claude AI: a self-hosted sandbox and a new security guidance plugin.

The sandbox, currently in public beta, was announced at Anthorpic’s Code w/ Claude event in London this week.

According to the company, Claude Managed Agents can now operate in a user-controlled sandbox connected to the user’s private MPC servers.

“Tool execution moves to an environment you configure—your own infrastructure or a managed provider like Cloudflare, Daytona, Modal, or Vercel—while the agent loop that handles orchestration, context management, and error recovery stays on Anthropic’s infrastructure,” Anthropic explained.

It added, “Your network policies, audit logging, and security tooling apply, files and repositories don’t leave your perimeter, and you control compute sizing and the runtime image for compute-heavy work.”