> ## Documentation Index
> Fetch the complete documentation index at: https://e2b.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# E2B Documentation

export const Quickstart = () => {
  const items = [{
    href: "/docs/quickstart",
    title: "Running your first Sandbox",
    description: "Learn how to start your first E2B Sandbox with our Python or JavaScript SDK.",
    icon: "circle-play"
  }, {
    href: "/docs/quickstart/connect-llms",
    title: "Connecting LLMs to E2B",
    description: "Connect your favorite LLM to E2B to run AI-generated code inside the Sandbox.",
    icon: "brain-circuit"
  }, {
    href: "/docs/quickstart/upload-download-files",
    title: "Uploading & downloading files",
    description: "A quick guide on how to upload and download files to and from the Sandbox.",
    icon: "cloud-arrow-up"
  }, {
    href: "/docs/quickstart/install-custom-packages",
    title: "Install custom packages",
    description: "Customize your Sandbox with third-party packages.",
    icon: "box-open-full"
  }];
  return <Columns cols={2}>
      {items.map(i => <Card title={i.title} href={i.href} icon={i.icon}>
          {i.description}
        </Card>)}
    </Columns>;
};

## What is E2B?

E2B provides isolated sandboxes that let agents safely execute code, process data, and run tools. Our SDKs make it easy to start and manage these environments.

Start a sandbox and run code in a few lines:

<CodeGroup>
  ```bash JavaScript & TypeScript theme={"theme":{"light":"github-light","dark":"github-dark-default"}}
  npm i e2b
  ```

  ```bash Python theme={"theme":{"light":"github-light","dark":"github-dark-default"}}
  pip install e2b
  ```
</CodeGroup>

<CodeGroup>
  ```javascript JavaScript & TypeScript theme={"theme":{"light":"github-light","dark":"github-dark-default"}}
  import { Sandbox } from 'e2b'

  const sandbox = await Sandbox.create() // Needs E2B_API_KEY environment variable
  const result = await sandbox.commands.run('echo "Hello from E2B Sandbox!"')
  console.log(result.stdout)
  ```

  ```python Python theme={"theme":{"light":"github-light","dark":"github-dark-default"}}
  from e2b import Sandbox

  sandbox = Sandbox.create()  # Needs E2B_API_KEY environment variable
  result = sandbox.commands.run('echo "Hello from E2B Sandbox!"')
  print(result.stdout)
  ```
</CodeGroup>

## E2B building blocks

A quick overview of the core building blocks you'll interact with when using E2B.

* [**Sandbox**](/docs/sandbox) — A fast, secure Linux VM created on demand for your agent

* [**Template**](/docs/template/quickstart) — Defines what environment a sandbox starts with

## How to use the docs

The documentation is split into three main sections:

* [**Quickstart**](#quickstart) — Step-by-step tutorials that walk you through creating your first E2B sandboxes.

* [**Examples**](#examples) — In-depth tutorials focused on specific use cases. Pick the topics that match what you're building.

* [**SDK Reference**](https://e2b.dev/docs/sdk-reference) — A complete technical reference for every SDK method, parameter, and configuration option.

## Quickstart

<Quickstart />

## Examples

<CardGroup cols={2}>
  <Card title="Computer Use" icon="desktop" href="/docs/use-cases/computer-use">
    Build AI agents that see, understand, and control virtual Linux desktops using E2B Desktop sandboxes.
  </Card>

  <Card title="GitHub Actions CI/CD" icon="gears" href="/docs/use-cases/ci-cd">
    Use E2B sandboxes in your GitHub Actions workflows to run testing, validation, and AI code reviews.
  </Card>
</CardGroup>