## What is E2B? [E2B](https://www.e2b.dev/) is an open-source infrastructure that allows you to run AI-generated code in secure isolated sandboxes in the cloud. To start and control sandboxes, use our [JavaScript SDK](https://www.npmjs.com/package/@e2b/code-interpreter) or [Python SDK](https://pypi.org/project/e2b_code_interpreter). ## Run your first Sandbox ### 1. Install SDK JavaScript / TypeScript ``` npm i @e2b/code-interpreter ``` Python ``` pip install e2b-code-interpreter ``` ### 2. Get your E2B API key 1. Sign up to E2B [here](https://e2b.dev). 2. Get your API key [here](https://e2b.dev/dashboard?tab=keys). 3. Set environment variable with your API key. ``` E2B_API_KEY=e2b_*** ``` ### 3. Execute code with code interpreter inside Sandbox JavaScript / TypeScript ```ts import { Sandbox } from '@e2b/code-interpreter' const sbx = await Sandbox.create() await sbx.runCode('x = 1') const execution = await sbx.runCode('x+=1; x') console.log(execution.text) // outputs 2 ``` Python ```py from e2b_code_interpreter import Sandbox with Sandbox.create() as sandbox: sandbox.run_code("x = 1") execution = sandbox.run_code("x+=1; x") print(execution.text) # outputs 2 ``` ### 4. Check docs Visit [E2B documentation](https://e2b.dev/docs). ### 5. E2B cookbook Visit our [Cookbook](https://github.com/e2b-dev/e2b-cookbook/tree/main) to get inspired by examples with different LLMs and AI frameworks. ## Customizing the sandbox template Need extra packages or a different runtime? You can build your own Code Interpreter sandbox template. See the [template guide](/template/README.md) for a step-by-step walkthrough of creating, building, and using a custom template (as well as building the production `code-interpreter-v1` template).