E2B is a runtime that's open source and designed to execute AI-generated code in isolated cloud sandboxes. It allows developers to integrate code-interpretation capabilities into their AI agents and applications, allowing them to execute dynamic code snippets within a controlled environment. The platform supports multiple languages, including Python, JavaScript, and SDKs to ensure seamless integration. E2B uses Firecracker microVMs for robust security and isolation of code execution. Developers can use E2B in their own infrastructure, or the cloud service provided. The platform is LLM-agnostic and compatible with a variety of large language models, including OpenAI, Llama Anthropic and Mistral. E2B features include rapid sandbox creation, customizable execution environments and support for sessions lasting up to 24 hours.