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Agent Sandbox
Agent Sandbox is a cloud native controller for sandboxes that safely executes untrusted code on Kubernetes.
Agent Sandbox is a cloud native controller designed to safely deploy autonomous AI agents on Kubernetes. It provides a secure and isolated execution layer for generating and running untrusted code at scale. The platform supports short-lived, medium-lived, and always-lived sandboxes for workloads like code execution, coding agents, computer use, and CI/CD pipelines. It features decoupled isolation with a standardized Kubernetes API that abstracts underlying security backends. Users can select isolation technologies including gVisor and Kata Containers to align with specific security and performance needs. The project offers Python and Go SDKs for quick integration.
Agent Sandbox at a glance
- Best for: Software engineer
- Runs on: Kubernetes, open source, self-hosted
- Pricing: Free
- Released: August 2025
- Category: AI coding tool
- Website: agent-sandbox.sigs.k8s.io
Key features
- Run untrusted code in fully isolated sandboxes
- Support autonomous coding agents
- Enable computer use tasks with graphical desktops and browsers
- Integrate into CI/CD pipelines for isolated testing
- Run always-on agent environments with OpenClaw
- Harden security with gVisor isolation
- Use hardware virtualization via Kata Containers and QEMU
Use it for
- Execute untrusted code for code interpreters and analytics
- Build coding agents that write and debug code
- Run AI agents that interact with graphical desktops
- Integrate into CI/CD pipelines for automated workflows
- Run persistent, long-running agent workloads
Alternatives to Agent Sandbox
- AIO Sandbox — Provides an integrated environment for agents in a single Docker container.
- Sandcastle — Orchestrates AI coding agents in isolated Docker, Podman, or Vercel sandboxes.
- OpenSandbox — Provides isolated environments with multi-language SDKs and lifecycle management.
- AI Sandboxes by Buddy — Stateful virtual machines with persistent disks and public HTTPS endpoints.
- Composio — Equips AI agents with tools, managed user auth, and sandboxes across 1,500+ apps
- CubeSandbox — Provides sub-60ms cold starts and hardware-level microVM kernel isolation.
- Daytona — It provisions sandboxes in under 90 milliseconds with full security isolation.
- Dormice — Permanent sandboxes that cost nothing while idle on private infrastructure.
- Eve — Builds durable AI agents with file system based configuration and isolated sandboxes.
- AgentFS — Provides isolated filesystem access and instant snapshots via SQLite.
- cc-sdd — Explicit boundaries and independent review let humans and agents work in parallel safely.
- PentAGI — It autonomously manages penetration testing workflows within a secure Docker sandbox.
All Agent Sandbox alternatives