Cube SandboxEmpowering your AI Agents.

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

⚡ Ultra-fast Startup

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

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

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

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

eBPF-based CubeVS enforces strict inter-sandbox isolation and fine-grained egress filtering at the kernel level.

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

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