Installation

Install the SDK

The Runra JavaScript/TypeScript SDK is available via npm:

npm install runra

Or with Bun:

bun add runra

Environment variables

Set these environment variables to configure the SDK:

Variable	Required	Description
`RUNRA_API_KEY`	Yes	Your Runra API key
`RUNRA_API_URL`	No	API base URL (defaults to `https://box.runra.dev`)
`RUNRA_TEMPLATE_ID`	No	Default sandbox template

SDK configuration

You can also configure the SDK programmatically:

import { configure, Sandbox } from "runra";

configure({
  apiKey: process.env.RUNRA_API_KEY,
  // Optional: override API URL
  apiUrl: "https://box.runra.dev",
  // Optional: default template
  template: process.env.RUNRA_TEMPLATE_ID,
});

const sandbox = await Sandbox.create();

Provider options

The Runra SDK supports multiple sandbox providers:

Provider	Description
`runra-sandbox`	Hosted Runra Sandbox (recommended)
`cubesandbox`	Self-hosted CubeSandbox
`docker`	Local Docker
`e2b`	E2B Code Interpreter

TypeScript support

The SDK is written in TypeScript and includes full type definitions. No additional packages needed.

import { Sandbox } from "runra";

The SDK is backed by the E2B code-interpreter client, so the returned sandbox exposes E2B-compatible methods such as runCode(), commands.run(), files.write(), and files.read().

Next steps

Quick Start — build your first sandbox
Setup Guide — production configuration
SDK Reference — full API reference