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sandbox

Active·★ 85·AGPL-3.0·Updated 2026-10-22

Sandbox provides high-performance MicroVM sandboxes for AI agents, leveraging the cocoon stack for rapid boot times and warm pools. It offers secure, isolated execution environments with SDKs for Go and Python, and integrations with agent frameworks like OpenAI Agents and LangChain.

#MicroVM#Sandboxing#AI Agents#Cloud Hypervisor#Firecracker#Go SDK#Python SDK
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Guides
#Agent Frameworks
$ Install
$ make sandboxd
↗ Visit site★ GitHub
01

Features

01High-performance MicroVM sandboxes for AI agents with sub-millisecond warm claims and fast boot.
02Dual network lanes supporting Firecracker for vsock-only and Cloud Hypervisor for egress networking.
03In-guest daemon (silkd) for executing commands, file operations, persistent shell sessions, and LSP proxy.
04Per-node control plane (sandboxd) with warm pools, claim/release HTTP API, and HTTP-upgrade byte relay.
05Comprehensive SDKs for Go and Python, plus direct integrations with OpenAI Agents SDK and LangChain.
02

Compatibility

Go
Runtime
Verified via docs
Python
Runtime
Verified via docs
Rust
Runtime
Verified via docs
Linux
OS
Verified via docs
Firecracker
MicroVM
Verified via docs
Cloud Hypervisor
MicroVM
Verified via docs
03

Quick start

1
$ make sandboxd
04

Use cases

↳Providing isolated and secure execution environments for AI agents to run untrusted code or perform tasks.
↳Integrating with popular agent frameworks like LangChain or OpenAI Agents for enhanced code execution capabilities.
↳Developing and testing AI agents in a controlled, high-performance sandbox environment.
↳Orchestrating AI agent workloads with warm pools for rapid and efficient task execution.
↳Enabling secure and private execution of AI models or sensitive operations within a microVM.
05

Alternatives

⚡Top VS:
VStunnel-client★589→VStachyon★37→VScua★30.7k→VSE2B

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cocoonstack /
sandbox
↗

Fast cold-boot MicroVM sandboxes for AI agents on cocoon

85AGPL-3.0
Last commit1d ago
StatusActive
CategoryLLM Infra
Links
Documentation↗Discussion↗Issues↗Releases↗
Cloud Infrastructure
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