OpenSandbox alternatives
Curated alternatives to OpenSandbox — and why you'd switch.
CubeSandbox
Hardware-isolated microVM sandboxes for AI agents — sub-60ms boot, <5MB overhead, E2B-compatible API, self-hosted on your own KVM nodes.
Why switchBoth self-hosted sandbox runtimes for agents, split by isolation bet: CubeSandbox is microVM-first (KVM boundary, E2B-compatible API); OpenSandbox is platform-first (Docker/K8s runtimes, SDKs, CLI, MCP) for teams standardizing on existing infra.
Full comparison →