Cube SandboxEmpowering your AI Agents.

Instant, Concurrent, Secure & Lightweight Sandbox Service for AI Agents

Quick Start

⚡ Ultra-fast Startup

Resource pooling and snapshot cloning skip all cold-start overhead. Sandbox creation faster than a blink.

🔒 Hardware Isolation

Every sandbox runs a dedicated OS kernel in its own MicroVM.

🔌 E2B SDK Compatible

Drop-in replacement for E2B Cloud. Switch by changing one environment variable — zero client code changes.

📦 High-density Deployment

MB-level per-sandbox overhead enables thousands of instances per server via kernel sharing and Copy-on-Write.

🛡️ Network Security

eBPF-based inter-sandbox isolation and egress filtering at kernel level; built-in L7 security proxy enables per-domain/path/method policies with automatic credential injection — secrets never visible to sandbox code.

📸 State Management

Create checkpoints on running sandboxes, roll back to any saved state, or fork into parallel exploration environments at millisecond granularity.

Get Started

Quick Start — from zero to a running sandbox in minutes
Self-Build Deployment — build from source and deploy on a single machine
Multi-Node Cluster — scale to multiple nodes
Architecture Overview — understand the system design and core components

Examples

For SDK examples and end-to-end scenarios, see:

Example Projects — code execution, browser automation, OpenClaw integration, RL training, and more
Repository examples — full collection on GitHub