E2B is an open-source, secure cloud sandbox platform that enables AI agents and developers to safely execute AI-generated code across multiple languages—ideal for building agentic workflows.
E2B offers fast-running, isolated microVM environments (powered by Firecracker) that can be spun up in under 200 ms. Compatible with any LLM (OpenAI, Anthropic, Mistral, etc.), it supports languages like Python, JavaScript, Ruby, and C++. Features include package installation, terminal access, filesystem interaction, long-running sessions (up to 24 hours), and seamless SDK integration—making it a foundation for AI-powered code execution and complex agent workflows.