shoreguard vs CubeSandbox
AI-agent sandbox management compared
shoreguard is a management plane for NVIDIA OpenShell, providing tools to manage sandboxes, policies, gateways, and inference routing. CubeSandbox runs workloads inside KVM-based microVMs; the main difference is that shoreguard manages OpenShell environments, while CubeSandbox provides the sandbox execution service.

shoreguard: Manage NVIDIA OpenShell Agent Sandboxes
ShoreGuard adds a web UI, REST API, and Terraform workflow for managing NVIDIA OpenShell sandboxes, policies, and routed inference. It suits teams operating multiple gateways that need centralized access controls and auditability.

CubeSandbox: Run Secure, Fast Sandboxes for AI Agents
CubeSandbox is a self-hostable sandbox service for running untrusted AI-agent workloads in hardware-isolated microVMs. It combines E2B SDK compatibility with snapshots, network controls, and single-node or multi-node deployment.
| shoreguard | CubeSandbox | |
|---|---|---|
| Language | Python | Go |
| License | Apache-2.0 | NOASSERTION |
| Stars | 4 | 12.8k |
| Forks | 2 | 1.2k |
| Last analyzed | Oct 8, 2026 | Oct 3, 2026 |
Key differences
- shoreguard focuses on managing sandboxes and policies across OpenShell gateways; CubeSandbox focuses on isolated code execution in microVMs.
- shoreguard is written in Python and requires Python 3.14 or newer; CubeSandbox is written in Go and requires Linux with KVM.
- shoreguard offers a web interface, REST API, and Terraform workflow; CubeSandbox offers REST APIs compatible with the E2B SDK interface.
- shoreguard supports policy revision history, approval workflows, audit logs, and YAML-based GitOps; CubeSandbox provides snapshots, cloning, rollback, and idle pause and resume.
- shoreguard is licensed Apache-2.0; CubeSandbox metadata reports NOASSERTION, while its README states Apache License 2.0.
- shoreguard is aimed at teams operating OpenShell gateways; CubeSandbox is aimed at teams operating self-hosted sandbox infrastructure for agent workloads.
Choose shoreguard if you…
- need centralized management of multiple NVIDIA OpenShell gateways and their policies.
- want approval workflows, policy history, and auditability for sandbox changes.
- plan to manage policies through Terraform or version-controlled YAML workflows.
Choose CubeSandbox if you…
- need to run untrusted workloads in KVM-based microVMs rather than manage OpenShell sandboxes.
- want E2B SDK-compatible APIs with snapshots, cloning, and rollback.
- can operate Linux and KVM infrastructure for a self-hosted sandbox service.
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This comparison is generated with AI from the OSRepos analyses of both projects. Always check each project's repository and documentation before choosing.