I built Claudebox to get more out of my Claude subscription. It runs Claude Code in a sandboxed Docker container and exposes an OpenAI-compatible API; so any tool can use Claude as a backend.
No API key needed, no extra billing; it authenticates with your existing Claude credentials. The container is network-isolated (only Anthropic domains allowed), so Claude gets full agent capabilities (file editing, shell, code analysis) without access to your host or the open internet.
I mainly use it for personal data processing tasks where I want an agent API but don't want to pay above my subscription.