agent-sandbox alternatives
Curated alternatives to agent-sandbox — and why you'd switch.
OpenSandbox
CNCF-landscape sandbox platform for AI agents: multi-language SDKs, unified API, CLI and MCP over Docker/Kubernetes runtimes — coding agents, GUI agents, evals and RL training.
Why switchBoth give agents managed sandboxes on Kubernetes. OpenSandbox is a full platform (multi-language SDKs, CLI, MCP, Docker too); agent-sandbox is the minimal upstream CRD you compose yourself.
Full comparison →CubeSandbox
Hardware-isolated microVM sandboxes for AI agents — sub-60ms boot, <5MB overhead, E2B-compatible API, self-hosted on your own KVM nodes.
Why switchSame job — self-hosted sandboxes for agent code — at a different layer: CubeSandbox is its own KVM microVM runtime with an E2B-compatible API; agent-sandbox orchestrates pods and delegates isolation to gVisor or Kata.
Full comparison →superserve
Persistent, secure sandboxes for AI agents on Firecracker microVMs — TypeScript and Python SDKs, CLI and console; the runtime is a hosted service, the SDK stack is Apache-2.0.
Why switchPersistent per-agent sandboxes either way: superserve runs Firecracker microVMs as a hosted service; agent-sandbox keeps them in your own cluster as Kubernetes resources.
Full comparison →