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To use the API key, you can either:
  • Set the API key as the E2B_API_KEY environment variable to avoid passing it each time you create a sandbox.
  • Or pass it directly to the Sandbox constructor as shown below:
import { Sandbox } from 'e2b'

const sandbox = await Sandbox.create({ apiKey: 'YOUR_API_KEY' })

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Where to find API key

You can get your API key at dashboard.

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Access token

E2B_ACCESS_TOKEN is deprecated. New access tokens can no longer be generated after July 1, 2026, and all access tokens stop working on August 1, 2026. Authenticate with E2B_API_KEY instead. See the access token deprecation.
The access token is used only by the interactive CLI login commands e2b auth login and e2b auth configure, which set up your local workstation. It is not needed in the SDK, and you do not need to set it as an environment variable to use the CLI.

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Where to find access token

You can get your Access token key at the dashboard. After July 1, 2026, new access tokens can no longer be generated.