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

# Sandbox

> Isolated development environments for code execution

## Overview

Splox Sandbox provides secure, isolated development environments for code execution, testing, and rapid prototyping. With flexible compute resources and pre-configured templates, Sandbox enables safe experimentation without infrastructure setup.

<Card title="Why Use Sandbox?" icon="sparkles">
  * **Isolated environments** - Secure, sandboxed execution
  * **Flexible compute** - Scale vCPUs and memory as needed
  * **Pre-configured templates** - MCP, VS Code, NextJS, React, Browser
  * **Pay-per-second** - Only pay for actual usage time
  * **Free storage** - No additional cost for file storage
  * **AI integration** - Works seamlessly with Splox workflows
</Card>

***

## Pricing Model

Pay only for the compute resources you use, billed per second.

| Resource    | Price                  | Description             |
| ----------- | ---------------------- | ----------------------- |
| **vCPU**    | **\$0.0000364/sec**    | Virtual CPU cores       |
| **Memory**  | **\$0.000013/GiB/sec** | RAM allocation          |
| **Storage** | **FREE**               | Persistent file storage |

<Info>
  **Example:** A sandbox with 4 vCPUs and 8GB RAM costs:

  * (4 × $0.0000364) + (8 × $0.000013) = **\$0.0002496/sec**
  * 1 minute = **\$0.015**
  * 1 hour = **\$0.90**

  **Cost optimization:** Stop sandboxes when not in use!
</Info>

***

## Sandbox Templates

Pre-configured environments for common development scenarios.

### MCP Development Environment

Model Context Protocol development setup.

<Card>
  **Configuration:**

  * **vCPUs:** 4
  * **Memory:** 8GB
  * **Cost:** $0.0002496/sec ($0.015/min, \$0.90/hour)

  **Best For:**

  * MCP server development
  * Protocol testing
  * Integration work
</Card>

### VS Code Environment

Lightweight VS Code development environment.

<Card>
  **Configuration:**

  * **vCPUs:** 4
  * **Memory:** 4GB
  * **Cost:** $0.0001976/sec ($0.012/min, \$0.71/hour)

  **Best For:**

  * Code editing
  * Small projects
  * Quick prototyping
</Card>

### NextJS + FastAPI

Full-stack development environment.

<Card>
  **Configuration:**

  * **vCPUs:** 4
  * **Memory:** 8GB
  * **Cost:** $0.0002496/sec ($0.015/min, \$0.90/hour)

  **Best For:**

  * Full-stack development
  * API + frontend projects
  * Web applications
</Card>

### React Fiber + ThreeJS

3D web development environment.

<Card>
  **Configuration:**

  * **vCPUs:** 4
  * **Memory:** 4GB
  * **Cost:** $0.0001976/sec ($0.012/min, \$0.71/hour)

  **Best For:**

  * 3D visualization
  * Interactive graphics
  * React Three Fiber apps
</Card>

### Browser (Full Desktop)

Complete desktop browser environment.

<Card>
  **Configuration:**

  * **vCPUs:** 8
  * **Memory:** 8GB
  * **Cost:** $0.0003952/sec ($0.024/min, \$1.42/hour)

  **Best For:**

  * Browser automation
  * Visual testing
  * Web scraping
  * UI/UX testing
</Card>

### Code Interpreter

Lightweight code execution environment.

<Card>
  **Configuration:**

  * **vCPUs:** 2
  * **Memory:** 1GB
  * **Cost:** $0.0000858/sec ($0.005/min, \$0.31/hour)

  **Best For:**

  * Code execution
  * Script testing
  * Data analysis
  * Quick computations
</Card>

***

## Best Practices

<CardGroup cols={2}>
  <Card title="Optimize Costs" icon="dollar-sign">
    * **Stop when idle** - Pause sandboxes when not in use
    * **Right-size resources** - Use smallest template that works
    * **Use Code Interpreter** for simple tasks (cheapest!)
    * **Batch operations** - Group tasks to minimize uptime
  </Card>

  <Card title="Resource Selection" icon="gauge">
    * **Code Interpreter** - Simple scripts, data analysis (\$0.31/hr)
    * **VS Code/React Fiber** - Standard development (\$0.71/hr)
    * **MCP/NextJS** - Heavy workloads (\$0.90/hr)
    * **Browser** - Intensive automation (\$1.42/hr)
  </Card>

  <Card title="Integration" icon="puzzle-piece">
    * Combine with AI models for code generation
    * Integrate with workflows
    * Monitor usage in dashboard
  </Card>

  <Card title="Security" icon="shield">
    * All sandboxes are isolated
    * No network access to internal systems
    * Files persist in secure storage (free!)
    * Automatic cleanup after expiration
  </Card>
</CardGroup>

***

## Cost Examples

### Scenario: Quick Code Test

<Steps>
  <Step title="Start Code Interpreter">
    Cost: \$0.0000858/sec
  </Step>

  <Step title="Run for 2 minutes">
    2 min × 60 sec × $0.0000858 = $0.0103
  </Step>

  <Step title="Stop sandbox">
    No additional charges
  </Step>

  <Step title="Total Cost">
    \~\$0.01 (1 cent!)
  </Step>
</Steps>

### Scenario: Development Session

<Steps>
  <Step title="Start NextJS + FastAPI">
    Cost: \$0.0002496/sec
  </Step>

  <Step title="Work for 30 minutes">
    30 min × 60 sec × $0.0002496 = $0.449
  </Step>

  <Step title="Total Cost">
    \~\$0.45 (45 cents for 30 minutes!)
  </Step>
</Steps>

### Scenario: Browser Automation

<Steps>
  <Step title="Start Browser Desktop">
    Cost: \$0.0003952/sec
  </Step>

  <Step title="Run automation (10 minutes)">
    10 min × 60 sec × $0.0003952 = $0.237
  </Step>

  <Step title="Total Cost">
    \~\$0.24 (24 cents for 10 minutes!)
  </Step>
</Steps>

<Info>
  **Sandbox costs are very affordable!**

  * Code Interpreter: \~\$0.31/hour
  * VS Code: \~\$0.71/hour
  * Full-stack: \~\$0.90/hour
  * Browser: \~\$1.42/hour

  Always stop sandboxes when done to avoid unnecessary charges!
</Info>

***

## Use Cases

<Tabs>
  <Tab title="Development">
    **Code Editing & Testing:**

    * Use VS Code environment for editing
    * Test with Code Interpreter

    **Best Template:** VS Code or Code Interpreter

    **Cost:** \$0.31-0.71 per hour
  </Tab>

  <Tab title="Web Automation">
    **Browser Tasks:**

    * Web scraping
    * UI testing
    * Screenshot capture
    * Form automation

    **Best Template:** Browser (Full Desktop)

    **Cost:** \$1.42 per hour
  </Tab>

  <Tab title="Full-Stack Apps">
    **Application Development:**

    * Frontend + backend
    * API development
    * Database integration
    * Testing workflows

    **Best Template:** NextJS + FastAPI

    **Cost:** \$0.90 per hour
  </Tab>

  <Tab title="Data Analysis">
    **Quick Computations:**

    * Script execution
    * Data processing
    * Algorithm testing
    * Prototyping

    **Best Template:** Code Interpreter

    **Cost:** \$0.31 per hour (cheapest!)
  </Tab>
</Tabs>

***

## Support

Need help with Sandbox?

<CardGroup cols={2}>
  <Card title="E2B Documentation" icon="book" href="https://e2b.dev/docs">
    Official E2B Sandbox docs
  </Card>

  <Card title="E2B Pricing" icon="dollar-sign" href="https://e2b.dev/pricing">
    Official pricing details
  </Card>

  <Card title="Splox Docs" icon="file-text" href="https://docs.splox.io/introduction">
    Browse our guides
  </Card>

  <Card title="Community" icon="users" href="https://community.splox.io">
    Get help from the community
  </Card>
</CardGroup>