What is E2B?
Latest launch Apache-2.0
Summary
E2B is an open-source sandbox environment for running AI agents in secure, on-demand Linux VMs.
- Category
- Agent infra
- Open source
- Yes
- License
- Apache-2.0
- Pricing
- Not stated in the sources on this page.
E2B is, per its GitHub repository, an open-source, secure environment with real-world tools for enterprise-grade agents. Its documentation describes sandboxes as Linux VMs created on demand for agents, which can be paused and resumed. It sits in the Agent infra category.
This hub was created with the dated launch E2B 2.56.0, released October 13, 2026.
E2B alternatives
| Tool | License | Pricing note |
|---|---|---|
E2BThis pageE2B is an open-source sandbox environment for running AI agents in secure, on-demand Linux VMs. | Apache-2.0 | Not stated |
DaytonaDaytona is infrastructure for running AI-generated code in isolated sandboxes via SDKs, API and CLI. | — | Not stated |
ModalModal runs code in the cloud and offers Sandboxes, secure containers for untrusted user or agent code. | — | Not stated |
Cloudflare Sandbox SDKCloudflare's SDK for running untrusted or generated code in isolated sandboxes via a Worker. | — | Not stated |
Launches and updates
E2B 2.56.0 requires Node 22.19+ and drops request cap
E2BE2B 2.56.0, released October 13, 2026, requires Node.js 22.19.0+, moves to undici 8 and removes the SDK in-flight request cap and its env vars.
Category: Agent infra
Pricing: Open source
Questions
What is E2B?
The GitHub repository describes E2B as an open-source, secure environment with real-world tools for enterprise-grade agents. The documentation describes a sandbox as a Linux VM created on demand for your agent.
Is E2B open source?
The GitHub API reports the e2b-dev/E2B repository license as Apache-2.0. Pricing for hosted use is not stated in the cited sources.
What changed in e2b 2.56.0?
The release notes say it requires Node.js 22.19.0 or newer, uses undici 8 and removes the SDK-level in-flight request cap.