After San Francisco on May 6, Anthropic brought its ‘Code with Claude’ developer conference to London on May 19. And while the SF edition was more about setting direction, London delivered concrete new features.
Self-Hosted Sandboxes
The biggest topic for enterprise customers: Self-Hosted Sandboxes. These let companies run Claude Code within their own infrastructure — isolated and controlled. Four providers are supported at launch: Cloudflare, Daytona, Modal, and Vercel. For companies that can’t send data to external sandboxes for compliance reasons, this is a game-changer.
MCP Tunnels
Also new: MCP Tunnels. These allow Model Context Protocol connections to be securely tunneled through corporate firewalls. MCP is Anthropic’s open standard that lets AI models access external tools and data. Tunnels make this possible even in tightly controlled network environments.
Claude Security and Advisor Strategy
Two more enterprise features: Claude Security provides security analysis for agentic workflows, and Advisor Strategy helps companies plan their Claude adoption strategically. Add to that Tool Search (intelligent tool discovery), Compaction (context management for long sessions), and Programmatic Tool Calling.
20+ Legal Plugins and 12 Practice-Area Plugins
Particularly notable: Anthropic unveiled over 20 new MCP connectors specifically for the legal industry, plus 12 plugins covering different areas of law. This shows how seriously Anthropic is taking vertical expansion. After finance (with the recent Briefing series), legal is clearly the next industry in focus.
Extended Day for Indie Developers
On May 20, there was an additional ‘Extended Day’ specifically for independent developers and early-stage founders. Founder stories, builder deep-dives, and hands-on workshops from the Applied AI team. Anthropic is visibly investing in the developer community — and not just among enterprise customers.
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