CubeSandbox

non-cncf

Tech Writing Pass

GitHub Repository Official Website

Content Lifecycle & Evolution State

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Initial Seed

Metadata Loaded

2

First Research

Automated Gathering

3

Tech Writing

Content Structured

4

Approval

Editorial Verified

Tech Writing Pass Completed: The technical overview and features have been structured by our autonomous content agents. Final editorial approval is pending.

Overview

CubeSandbox is a high-performance, out-of-the-box secure sandbox service for AI Agents built on RustVMM and KVM, compatible with the E2B SDK.

Key Features

Sub-60ms cold start speed for rapid sandbox creation
Hardware-level isolation with dedicated OS kernels in MicroVMs
E2B SDK compatibility for drop-in migration from E2B Cloud
High-density deployment with <5MB memory overhead per sandbox
eBPF-based inter-sandbox isolation and network security

Use Cases

AI Agent code execution, browser automation, OpenClaw integration, and RL training workloads requiring secure, isolated execution environments.

Getting Started

Deploy CubeSandbox via one-click Terraform on cloud VMs, on bare-metal, or in a dev-environment, then use the built-in WebUI for visual management.

Recent Updates

Version 0.7.1 introduced end-to-end high availability for control-plane services, including a standalone template-center service and active/standby deployment for lifecycle management.

Did You Know?

It can create a hardware-isolated, fully serviceable sandbox in under 60ms with less than 5MB of memory overhead, enabling thousands of instances per server.