Claude Code Example

Access Claude via the claude-cli npm package in OpenSandbox.

Start OpenSandbox server [local]

Pre-pull the code-interpreter image (includes Node.js):

docker pull sandbox-registry.cn-zhangjiakou.cr.aliyuncs.com/opensandbox/code-interpreter:v1.1.0

# use docker hub
# docker pull opensandbox/code-interpreter:v1.1.0

Then start the local OpenSandbox server, stdout logs will be visible in the terminal:

uv pip install opensandbox-server
opensandbox-server init-config ~/.sandbox.toml --example docker
opensandbox-server

Create and Access the Claude Sandbox

# Install OpenSandbox package
uv pip install opensandbox

# Run the example (requires SANDBOX_DOMAIN / SANDBOX_API_KEY / ANTHROPIC_AUTH_TOKEN)
uv run python examples/claude-code/main.py

The script installs the Claude CLI (npm i -g @anthropic-ai/claude-code@latest) at runtime (Node.js is already in the code-interpreter image), then sends a simple request claude "Compute 1+1=?.". Auth is passed via ANTHROPIC_AUTH_TOKEN, and you can override endpoint/model with ANTHROPIC_BASE_URL / ANTHROPIC_MODEL.

Environment Variables

Variable	Default	Description
SANDBOX_DOMAIN	localhost:8080	Sandbox service address
SANDBOX_API_KEY	(optional for local)	API key if your server requires authentication
SANDBOX_IMAGE	sandbox-registry.cn-zhangjiakou.cr.aliyuncs.com/opensandbox/code-interpreter:v1.1.0	Sandbox image to use
ANTHROPIC_AUTH_TOKEN	(required)	Your Anthropic auth token
ANTHROPIC_BASE_URL	(optional)	Anthropic API endpoint (e.g., self-hosted proxy)
ANTHROPIC_MODEL	claude_sonnet4	Model name

References

• claude-code - NPM package for Claude Code CLI
• Source code on GitHub