Cloud Sandbox

pip install cua-sandbox
export CUA_API_KEY="your-cua-key"
export ANTHROPIC_API_KEY="your-anthropic-key"

"""Run Claude Code inside a Cua cloud sandbox."""

import asyncio
import os

from cua_sandbox import Image, Sandbox

image = Image.linux("ubuntu", "24.04")


async def run(sb, cmd, **kwargs):
    """Run a command and print its output."""
    print(f"$ {cmd}")
    result = await sb.shell.run(cmd, **kwargs)
    if result.stdout:
        print(result.stdout.strip())
    if result.stderr:
        print(result.stderr.strip())
    return result


async def main():
    api_key = os.environ["ANTHROPIC_API_KEY"]

    async with Sandbox.ephemeral(image) as sb:
        # Install Node.js 20 + Claude Code (skip if already present)
        check = await sb.shell.run("which claude", timeout=10)
        if check.returncode != 0:
            sudo = "sudo " if (await sb.shell.run("whoami")).stdout.strip() != "root" else ""
            await run(sb, f"{sudo}apt-get update && {sudo}apt-get install -y curl git", timeout=120)
            await run(sb, f"curl -fsSL https://deb.nodesource.com/setup_20.x | {sudo}bash -", timeout=60)
            await run(sb, f"{sudo}apt-get install -y nodejs", timeout=60)
            await run(sb, f"{sudo}npm install -g @anthropic-ai/claude-code", timeout=120)

        # Run Claude Code
        result = await run(
            sb,
            f"ANTHROPIC_API_KEY='{api_key}' claude "
            f"--dangerously-skip-permissions "
            f"-p 'Create a hello world index.html file' "
            f"--output-format stream-json --verbose",
            timeout=300,
        )

        # Verify the result
        await run(sb, "cat index.html", timeout=10)


if __name__ == "__main__":
    asyncio.run(main())

python test_claude_code_cloud.py