Quick facts
- Best for
- CubeSandbox secure code sandboxes for AI agent teams
- Pricing
- Free
- Editor rating
- 4.5 / 5
- Community saves
- 0
About CubeSandbox
CubeSandbox is an open-source secure sandbox service for AI agents from Tencent Cloud. The repository describes a RustVMM and KVM-based runtime that creates hardware-isolated sandboxes in under 60 ms with less than 5 MB of per-instance overhead, supports single-node and multi-node deployments, and offers an E2B-compatible interface for agent code execution.
Pros
- Creates hardware-isolated sandboxes for untrusted agent code
- Built on RustVMM and KVM with a separate guest OS kernel per sandbox
- Documents under-60 ms cold starts and less than 5 MB overhead per instance
- Includes browser management for sandboxes, templates, nodes, and version matrix
- Supports CubeCoW snapshots, rollback, cloning, templates, and credential vault patterns
Cons
Pricing
Open-source project
$0
- • Source code is available in the public repository
- • Review the repository license and setup notes before production use
- • No hosted SaaS pricing was found in the official source