# Running your first Sandbox

This guide will show you how to start your first E2B Sandbox.

## 1. Create E2B account

Every new E2B account get $100 in credits. You can sign up [here](/auth/sign-up).


## 2. Set your environment variables
1. Navigate to the [E2B Dashboard](/dashboard?tab=keys).
2. Copy your API key.
3. Paste your E2B API key into your `.env` file.
<CodeGroup title=".env">
```bash
E2B_API_KEY=e2b_***
```
</CodeGroup>


## 3. Install E2B SDK
Install the E2B SDK to your project by running the following command in your terminal.
<CodeGroup isTerminalCommand>
```bash {{ language: 'js' }}
npm i @e2b/code-interpreter dotenv
```
```bash {{ language: 'python' }}
pip install e2b-code-interpreter python-dotenv
```
</CodeGroup>

## 4. Write code for starting Sandbox
We'll write the minimal code for starting Sandbox, executing Python inside it and listing all files inside the root directory.
<CodeGroup>
```ts {{ language: 'js', description: 'index.ts' }}
import 'dotenv/config'
import { Sandbox } from '@e2b/code-interpreter'

const sbx = await Sandbox.create() // By default the sandbox is alive for 5 minutes
const execution = await sbx.runCode('print("hello world")') // Execute Python inside the sandbox
console.log(execution.logs)

const files = await sbx.files.list('/')
console.log(files)
```

```python {{ language: 'python', description: 'main.py' }}
from dotenv import load_dotenv
load_dotenv()
from e2b_code_interpreter import Sandbox

sbx = Sandbox.create() # By default the sandbox is alive for 5 minutes
execution = sbx.run_code("print('hello world')") # Execute Python inside the sandbox
print(execution.logs)

files = sbx.files.list("/")
print(files)
```
</CodeGroup>

## 5. Start your first E2B Sandbox
Run the code with the following command:
<CodeGroup isTerminalCommand>
```bash {{ language: 'js' }}
npx tsx ./index.ts
```
```bash {{ language: 'python' }}
python main.py
```
</CodeGroup>


