Secure cloud sandboxes so an agent can run the code it writes. Built by E2B.
Common questions
Is E2B free to use?
E2B is open source and free to run yourself. You still pay whichever model provider you point it at, and this tutorial is free with no signup.
Do I need to know Python to use E2B?
Basic Python is enough. Functions, dictionaries and imports cover most of what E2B asks of you.
When should I not use E2B?
When something else in sandboxes fits the job better. The others in that group are listed below.
Lessons for E2B are being written. Meanwhile the Claude Code tutorial covers the same ground: state, tools, loops, memory and human approval. Most of it carries straight over.
Start the Claude Code tutorial →