# E2B
> E2B is an open-source infrastructure provider that offers secure, cloud-based sandboxes for AI agents. It allows LLMs and AI applications to run code in an isolated environment, similar to a cloud-based code interpreter.
- URL: https://optimly.ai/brand/e2b
- Slug: e2b
- BAI Score: 62/100
- Archetype: Challenger
- Category: Developer Tools
- Last Analyzed: April 11, 2026
- Part of: Y Combinator (https://optimly.ai/brand/y-combinator)
## Competitors
- Modal (https://optimly.ai/brand/modal)
- Piston (https://optimly.ai/brand/piston)
## Also Referenced By
- Fly.io (https://optimly.ai/brand/fly-io)