📦OpenSandbox
opensandbox-group/OpenSandbox · homepage ↗
Secure, Fast, and Extensible Sandbox runtime for AI agents.
⭐ Very popular: 14k stars, gaining about 1k a week
View on GitHub ↗repo profile
momentum
durability
bus factor = how many people it takes to cover more than half the commits (6 months). 1 is a solo project; higher means the work is spread across a team. top-author share is the single busiest author's slice of those commits.
since we covered it
why it's a big deal
- Gives teams running AI agents a way to execute untrusted, model-generated code inside isolated environments, covering coding agents, GUI automation, agent evaluation, and reinforcement learning training.
- Serves developers across ecosystems with SDKs for Python, Java/Kotlin, JavaScript/TypeScript, C#/.NET, and Go, plus a CLI and a Model Context Protocol server for direct agent integration.
- Addresses the operational risk of agent workloads through per-sandbox network egress policies, an ingress gateway, and a credential vault that injects secrets without exposing them to the sandboxed code.
under the hood
- Written in Python with the server built on FastAPI, alongside an execution daemon, ingress and egress proxies, and Kubernetes deployment configurations.
- Supports multiple isolation backends including Docker for local runs, Kubernetes for distributed scheduling, and gVisor, Kata Containers, and Firecracker microVMs for stronger host isolation.
- Defines a Sandbox Protocol specifying lifecycle and execution APIs, letting developers plug in custom sandbox runtime implementations, with built-in command execution, filesystem operations, and a code interpreter.
Radar summary, generated from the project's public sources
star history
- PR#29 7k 2026-03-11
- now 14k + 7k since first covered
curve is sampled from GitHub's star history, plus our own daily readings since we covered it; the dashed stretch is before we first covered it, the solid line since. figures at coverage are the numbers we printed then (approx.), current count is live.
starbound
On our Starbound watchlist: shipping hard from a cold start, before its stars have caught up.
- output, commits & releases
- clout, star velocity
output = commits & releases; clout = star velocity, both 0 to 100 monthly indices. Shipping this far ahead of its stars from a cold start is our leading indicator. The Starbound watchlist →
covered in
-
The Open Sandbox Runtime for AI Agents
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