| title | LangGraph |
|---|---|
| description | Integrate LangGraph with OpenSandbox using a graph-driven control flow for agent orchestration. |
Integrate LangGraph with OpenSandbox using a graph-driven control flow. The example uses explicit state machine nodes to create, prepare, run, inspect, and clean up a sandbox, plus a decision node to retry with a fallback command if the run step fails.
Pre-pull the code-interpreter image (includes Python):
docker pull sandbox-registry.cn-zhangjiakou.cr.aliyuncs.com/opensandbox/code-interpreter:v1.1.0
# use docker hub
# docker pull opensandbox/code-interpreter:v1.1.0Start the local OpenSandbox server, logs will be visible in the terminal:
uv pip install opensandbox-server
opensandbox-server init-config ~/.sandbox.toml --example docker
opensandbox-server# Install OpenSandbox + LangGraph deps
uv pip install opensandbox langgraph langchain-anthropic
# Run the example (requires SANDBOX_DOMAIN / SANDBOX_API_KEY / ANTHROPIC_API_KEY)
uv run python examples/langgraph/main.pyThe workflow writes files, executes a job, retries with a fallback command on failure (default
python vs python3), then summarizes results with Claude and cleans up the sandbox instance.
| 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_API_KEY |
(required if ANTHROPIC_AUTH_TOKEN is unset) |
Your Anthropic API key |
ANTHROPIC_AUTH_TOKEN |
(alternate) | Alternate Anthropic auth token (uses Authorization header) |
ANTHROPIC_BASE_URL |
(optional) | Anthropic API endpoint override |
ANTHROPIC_MODEL |
claude-3-5-sonnet-latest |
Model to use |
::: warning
ANTHROPIC_API_KEY and ANTHROPIC_AUTH_TOKEN should not be set together.
:::
- LangGraph - Agent workflow framework
- Source code on GitHub