Claude Managed Agents: Self-Hosted Sandboxes (Beta) + MCP Tunnels (Preview)
Announced at Code with Claude London, Anthropic has opened self-hosted sandboxes for Claude Managed Agents in public beta. Organizations can now run agents on their own infrastructure or through partner providers — Cloudflare, Daytona, Modal, or Vercel — with their own security controls applied by default. Simultaneously, MCP tunnels enter research preview: agents can reach MCP servers inside private corporate networks without requiring those servers to be exposed to the public internet.
Why It Matters
Self-hosted sandboxes remove the key enterprise blocker for Managed Agents adoption — customer-controlled security perimeters. MCP tunnels close the private-network deployment gap that was forcing teams to choose between MCP tooling and network isolation.