sandbox-sdk vs agent-sandbox
Cloudflare edge sandboxes compared with Kubernetes workloads
sandbox-sdk runs Linux sandboxes through Cloudflare Workers, Durable Objects, and Containers. agent-sandbox manages stateful Pods on Kubernetes; it coordinates workloads but relies on a selected Kubernetes runtime for isolation.
sandbox-sdk: Run Sandboxed Code on Cloudflare's Edge
Cloudflare Sandbox SDK runs untrusted or generated code in Linux sandboxes built on Cloudflare Durable Objects and Containers. It gives Workers control over sandbox ownership, network access, and credentials, with tools for files, bucket mounts, and backups.
agent-sandbox: Manage Stateful Workloads on Kubernetes
Agent Sandbox is a Kubernetes CRD and controller for isolated, stateful workloads with stable identity and persistent storage. It suits AI agent runtimes, reinforcement learning, and other single-pod workloads, with optional templates and warm pools.
| sandbox-sdk | agent-sandbox | |
|---|---|---|
| Language | TypeScript | Go |
| License | — | Apache-2.0 |
| Stars | 1.2k | 4.3k |
| Forks | 121 | 574 |
| Last analyzed | Oct 30, 2026 | Oct 21, 2026 |
Key differences
- sandbox-sdk targets Cloudflare’s edge platform, while agent-sandbox targets Kubernetes clusters.
- sandbox-sdk provides tools for file transfer, S3-compatible bucket mounts, and backup and restore; agent-sandbox focuses on Pod lifecycle, persistent storage, and stable identity.
- sandbox-sdk is written in TypeScript, while agent-sandbox is written in Go and also provides Go and Python SDKs.
- sandbox-sdk runs Linux Containers managed by Durable Objects; agent-sandbox manages Pods configured to use a Kubernetes RuntimeClass such as gVisor or Kata Containers.
- sandbox-sdk is aimed at code-execution and coding-agent workflows built as Workers; agent-sandbox also targets reinforcement learning, research sessions, and other stateful single-pod workloads.
- Both projects list Apache licensing and are active; agent-sandbox requires Kubernetes, while sandbox-sdk depends on Cloudflare Workers and related services.
Choose sandbox-sdk if you…
- need to run generated or user-submitted code on Cloudflare’s edge.
- want Workers to control sandbox access to hosts and credentials.
- need file transfers, bucket mounts, or directory backups for sandbox workspaces.
Choose agent-sandbox if you…
- need persistent, stateful workloads managed as Kubernetes Pods.
- want templates, claims, or warm pools for allocating Sandboxes.
- can select and configure a Kubernetes runtime to provide the isolation boundary.
Compare the numbers side by side, or add more projects
This comparison is generated with AI from the OSRepos analyses of both projects. Always check each project's repository and documentation before choosing.