The background
    agent cloud.

    Every sandbox is a full Linux VM — its own kernel, memory, and disk, isolated at the hardware level. Spin one up in seconds, keep it for hours or days.

    Start building →Star on GitHub

    TypeScript and Python SDKs, plus a CLI. Read the docs →

    sandbox.ts
    import { Sandbox } from "@opencomputer/sdk";
     
    const sandbox = await Sandbox.create();
    await sandbox.commands.run("npm install");
    await sandbox.checkpoint("deps-ready");
     
    // still alive tomorrow. and next week.
    █
    create
    sandbox oc-4c21
    run
    npm install
    checkpoint
    deps-ready
    → fork ×3
    approach-a
    approach-b
    approach-c

    Named snapshots you can fork from — try five approaches in parallel from the same starting point.

    Real VMs, not containers.

    Each sandbox is a full Linux virtual machine with its own kernel, memory, and disk — hardware-level isolation via KVM, not a container sharing a host kernel. Untrusted, AI-generated code gets a whole computer, safely.

    And it doesn't shut down after a command finishes. Install packages, clone repos, build projects — the sandbox stays alive for hours or days, until you kill it.

    inside the sandbox
    $ uname -m && whoami
    x86_64
    root
    $ df -h / | tail -1
    /dev/vda1  20G  2.1G  18G  11% /
    $ apt install postgresql# sure, it's your machine

    Built for long-running work

    Sandboxes that stick around.

    Most sandboxes are built for a script that runs and dies. OpenComputer sandboxes are persistent computers: full filesystem, full OS access, state that survives between sessions. Hibernate when idle, wake in milliseconds with everything exactly where you left it.

    Long-running

    Hours or days, not minutes. Nothing tears down after a command finishes.

    Checkpoint & fork

    Instant named snapshots. Fork or restore to any point in a second.

    Elastic

    Resize memory and CPU while the sandbox is running. No restart.

    Agent friendly

    Purpose built for harnesses like Claude Agent SDK and OpenCode.

    Create your first sandbox — free to start

    Pricing

    4 GB1 vCPU

    1 GB16 GB
    per minute$0.004
    per hour$0.24
    per month$168.72
    disk / GB-second$0.0000001

    20 GB disk included. Pay only while running. Talk to us for volume discounts.

    From the blog

    all posts →