# Zeroboot: Sub-millisecond VM Sandboxes for AI Agents

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Zeroboot is an innovative open-source project that delivers sub-millisecond VM sandboxes, primarily designed for AI agents and other applications requiring extremely fast, isolated code execution environments. It leverages copy-on-write forking and Firecracker microVMs to achieve hardware-enforced isolation with minimal overhead. This approach enables rapid, secure code execution, ideal for high-performance AI applications.

GitHub: https://github.com/zerobootdev/zeroboot
OSRepos URL: https://osrepos.com/repo/zerobootdev-zeroboot

## Summary

Zeroboot is an innovative open-source project that delivers sub-millisecond VM sandboxes, primarily designed for AI agents and other applications requiring extremely fast, isolated code execution environments. It leverages copy-on-write forking and Firecracker microVMs to achieve hardware-enforced isolation with minimal overhead. This approach enables rapid, secure code execution, ideal for high-performance AI applications.

## Topics

- ai-agents
- sandbox
- virtual-machine
- rust
- code-execution
- firecracker
- kvm
- developer-tools

## Repository Information

Last analyzed by OSRepos: Thu Jun 11 2026 01:19:51 GMT+0100 (Western European Summer Time)
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## Content

## Introduction

Zeroboot is an innovative open-source project that delivers sub-millisecond VM sandboxes, primarily designed for AI agents and other applications requiring extremely fast, isolated code execution environments. Built with Rust and leveraging Firecracker microVMs and KVM, Zeroboot utilizes copy-on-write forking to achieve unparalleled speed and efficiency. Each sandbox operates as a real KVM virtual machine, providing robust hardware-enforced memory isolation with minimal overhead, typically around 265KB per sandbox.

## Installation

You can interact with Zeroboot through its managed API or by self-hosting the solution on any Linux machine with KVM.

To quickly try the managed API, use the following `curl` command:

bash
curl -X POST https://api.zeroboot.dev/v1/exec \
  -H 'Content-Type: application/json' \
  -H 'Authorization: Bearer zb_demo_hn2026' \
  -d '{"code":"import numpy as np; print(np.random.rand(3))"}'


For self-hosting, refer to the official documentation for detailed deployment instructions.

## Examples

Zeroboot offers SDKs for popular programming languages to simplify integration.

**Python SDK:**

python
from zeroboot import Sandbox
sb = Sandbox("zb_live_your_key")
result = sb.run("print(1 + 1)")
print(result.stdout)


**TypeScript SDK:**

typescript
import { Sandbox } from "@zeroboot/sdk";
const result = await new Sandbox("zb_live_your_key").run("console.log(1+1)");
console.log(result.stdout);


## Why use Zeroboot

Zeroboot stands out for its exceptional performance and robust isolation capabilities:

*   **Ultra-low Latency:** Achieve VM spawn latencies as low as 0.79ms (p50) and 1.74ms (p99), significantly faster than comparable solutions.
*   **Resource Efficiency:** Each sandbox consumes approximately 265KB of memory, making it highly scalable for numerous concurrent environments.
*   **Hardware-Enforced Isolation:** Benefit from the security and reliability of KVM virtual machines, ensuring strong memory isolation between sandboxes.
*   **Ideal for AI Agents:** Perfectly suited for AI applications that need to execute code quickly and securely in isolated environments without significant startup delays.

## Links

*   [GitHub Repository](https://github.com/zerobootdev/zeroboot){:target="_blank"}
*   [API Reference](https://github.com/zerobootdev/zeroboot/blob/main/docs/API.md){:target="_blank"}
*   [Documentation](https://github.com/zerobootdev/zeroboot/tree/main/docs){:target="_blank"}