E2B

The E2B connector adapts an initialized E2B sandbox from the e2b package into Flue’s sandbox interface. Use it for provider-managed Linux execution when an agent needs shell commands and workspace files outside the application host.

Add the connector

pnpm exec flue add e2b

Requirements

Requirement	Value
Provider package	e2b
Credential	E2B_API_KEY
Environment	Provider-managed Linux sandbox
Lifecycle ownership	Your application creates and closes or retains the sandbox

Integration shape

import { Sandbox } from 'e2b';
import { createAgent } from '@flue/runtime';
import { e2b } from '../connectors/e2b';

const sandbox = await Sandbox.create();
const agent = createAgent(() => ({
  model: 'anthropic/claude-sonnet-4-6',
  sandbox: e2b(sandbox),
}));

Select templates, timeouts, network access, secret exposure, and resource reuse through your application and provider policy. Flue adapts the active environment; it does not choose provider retention for you.

See Sandboxes and Sandbox Connector API.