agent-sandbox vs superserve
Kubernetes SIG Apps' Sandbox CRD and controller: stateful singleton pods with stable identity and persistent storage for agent runtimes and RL — templates, claims, warm pools; gVisor/Kata isolation. — versus — 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.
Persistent per-agent sandboxes either way: superserve runs Firecracker microVMs as a hosted service; agent-sandbox keeps them in your own cluster as Kubernetes resources.
| agent-sandbox | superserve | |
|---|---|---|
| Stars | 4.0k | 463 |
| Forks | 530 | 54 |
| Language | Go | TypeScript |
| License | Apache-2.0 | Apache-2.0 |
| Last activity | 3 days ago | 6 days ago |
| Topics | sandboxes, agents | sandboxes, agents |
| Curated connections | 5 | 4 |
agent-sandbox — the curator's take
Pick agent-sandbox when you already run Kubernetes and want agent sandboxes as a declarative, first-class resource: one long-lived pod per agent with a stable hostname, persistent volume, pause/resume and scheduled deletion, plus warm pools so claims start fast. It's upstream Kubernetes (SIG Apps), so it's the boring, vendor-neutral choice, with Go and Python SDKs and a router for reaching pods. The catch is in its own scope note: it orchestrates, it doesn't isolate. Security comes from the RuntimeClass you configure (gVisor, Kata); on the default runtime it's just a pod. No cluster? A microVM runtime like cubesandbox or a hosted sandbox SDK is far less machinery.
superserve — the curator's take
The pitch is persistence: sandboxes that survive between agent runs instead of being disposable, on Firecracker isolation. Know what the repo is before starring: this is the SDK/CLI/console monorepo — the actual sandbox runtime lives behind the hosted service at superserve.ai, and the README is a contributor doc, not a product doc (the substance is at docs.superserve.ai). Use it when you want managed microVM sandboxes with a clean SDK and don't want to run KVM hosts; NOT for air-gapped or self-hosted requirements — that's CubeSandbox's territory. Young project, small community — evaluate the service's durability before building on it.