Run Claude Code in a sandbox

Sign inCopy Anchor Link

Use one of these three methods.

With an Anthropic API keyCopy Anchor Link

Put the key in the env of the sandbox:

{
  "ANTHROPIC_API_KEY": "sk-ant-..."
}

Anthropic bills the usage to this key. See authentication.

With a Claude subscriptionCopy Anchor Link

1. Connect to the sandbox over SSH.
2. Run claude.
3. Type /login, and select your Claude account.
4. Open the link on a device, and sign in with your Pro or Max plan.
5. Paste the code into the terminal.

• The sign-in stays in the sandbox. Each later claude -p command uses it.
• Claude Code uses the usage limits of your plan.
• A plan is for the work of one person. For many agents, use an API key.
• Anthropic does not let a third party collect or store the tokens of a Claude account (legal and compliance). Do not put a token in an API request.

With the open models of Munito AICopy Anchor Link

Put these variables in the env of the sandbox:

{
  "ANTHROPIC_BASE_URL": "https://api.munito.ai/inference",
  "ANTHROPIC_AUTH_TOKEN": "munitoai_...",
  "ANTHROPIC_MODEL": "zai-org/glm-5.3-flash[1m]",
  "ANTHROPIC_DEFAULT_OPUS_MODEL": "zai-org/glm-5.3-flash[1m]",
  "ANTHROPIC_DEFAULT_SONNET_MODEL": "zai-org/glm-5.3-flash[1m]",
  "ANTHROPIC_DEFAULT_HAIKU_MODEL": "qwen/qwen3.8-27b"
}

• Use a Munito AI key with the Inference permission. The same key opens the sandboxes API.
• Claude Code with open models explains each variable, the models and the regional hosts.

Run a taskCopy Anchor Link

curl -sS --fail-with-body "https://api.munito.ai/sandboxes/v1/sandboxes/$SANDBOX/exec" \
  -H "Authorization: Bearer $MUNITO_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"command": "cd /workspace && claude -p \"Write a Python script that prints the first 10 primes, and run it\" --allowedTools Bash Edit Write Read --output-format json", "timeout": 1800}'

• claude -p runs one task, and then it stops.
• --allowedTools Bash Edit Write Read lets Claude Code run commands and change files with no question.
• As root, Claude Code refuses --dangerously-skip-permissions. Use --allowedTools.
• --output-format json gives the result and the session_id.
• To get each event during the task, use --output-format stream-json --verbose and "stream": true.
• To continue a session, add --resume <session_id> to a later command.
• For a task of more than 30 minutes, start Claude Code in the background, and read its log with later commands:

nohup claude -p "..." --allowedTools Bash Edit Write Read > /workspace/claude.log 2>&1 &

Use the terminal UICopy Anchor Link

1. Add your public key with SSH.
2. Connect with the command that GET /sandboxes/{sandbox_id}/ssh gives.
3. Run claude. The shell starts in /workspace, with the variables of the sandbox.

To keep the session after you disconnect, install tmux (apt-get install -y tmux), and start Claude Code in it.