E2B

E2B is infrastructure for running AI-generated code in secure, isolated sandboxes in the cloud. You start and control sandboxes from the Python or JavaScript SDK in this repository, and each agent session gets its own microVM with a shell, file system, browser and network.

E2B gives an AI agent a full machine to run code, install packages and use tools, without touching your own systems. Sandboxes boot from snapshots and work with any model or agent framework, including the OpenAI Agents SDK, Claude Code and Codex. You use E2B's cloud with an API key, or deploy the open-source E2B runtime on your own infrastructure with Terraform.

E2B is one of the most widely used ways to let agents run code safely, and its runtime is open source rather than a black box. It's Apache-licensed.

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e2b-dev/E2B

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