OpenSandbox

general-purpose sandbox platform for AI applications. supports Python, TypeScript, Go. unified API for Docker and Kubernetes runtimes.

use cases

• coding agents
• GUI agents
• agent evaluation
• AI code execution
• RL training

why it matters

every agent that writes code needs isolation. OpenAI’s codex has sandboxing. Claude Code has it. OpenSandbox is the open-source stdlib for safe code execution.

the paradigm: safe execution is infrastructure, not a feature.