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Find answers to frequently asked questions about Hopx Sandboxes.

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General Questions

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What are Hopx Sandboxes?

Hopx Sandboxes are secure, isolated cloud virtual machines that enable you to run AI-generated code, execute multi-language programs, and perform complex computations in production-like environments. Each sandbox starts in ~100ms and provides complete isolation.

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How fast are sandboxes?

Sandboxes start in approximately 100ms (cold start time). This is much faster than traditional containers or VMs.

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What languages are supported?

You can execute code in:
  • Python
  • JavaScript/TypeScript
  • Bash (shell)
  • Go
  • .NET (C#)
  • Java
  • PHP

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How secure are sandboxes?

Each sandbox is completely isolated:
  • Separate filesystem
  • Separate network namespace
  • Separate process tree
  • Resource limits enforced
  • Encrypted storage

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Usage Questions

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How do I get started?

  1. Get your API key from the dashboard
  2. Install the SDK: pip install hopx-ai or npm install @hopx-ai/sdk
  3. Create your first sandbox (see Quickstart)

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How much do sandboxes cost?

Pricing is based on:
  • Sandbox runtime (per second)
  • Resources used (CPU, memory, disk)
  • Data transfer
Check the dashboard for current pricing.

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Can I reuse sandboxes?

Yes! Reusing sandboxes for multiple operations is recommended and more cost-effective than creating new ones for each operation.

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How long can sandboxes run?

Sandboxes can run for up to 24 hours (configurable). They automatically delete after inactivity or max lifetime.

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Technical Questions

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What templates are available?

Common templates include:
  • code-interpreter: Python with data science libraries (Pandas, NumPy, Matplotlib)
  • Custom templates: Build your own with the template builder API

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Can I build custom templates?

Yes! You can build custom templates with pre-installed packages and configurations. See the Custom Templates tutorial.

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How do I handle errors?

Use try-except blocks and check error types. See the Error Handling guide for best practices.

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What are rate limits?

Rate limits vary by plan. Default limits:
  • Sandbox Creation: 100 requests/minute
  • Code Execution: 1000 requests/minute
See Rate Limits for details.

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Support Questions

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Where can I get help?

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How do I report a bug?

Report bugs on GitHub Issues or contact support.

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Can I request a feature?

Yes! Feature requests are welcome on GitHub Discussions or Discord.

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Next Steps

Quickstart

Get started in 2 minutes

Core Concepts

Learn the fundamentals

Discord Community

Get help from the community

GitHub

View source code and issues