Zeroboot: Sub-millisecond VM Sandboxes for AI Agents

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:

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:

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

TypeScript SDK:

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
• API Reference
• Documentation