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Pocketenv abstracts over different compute backends. A sandbox definition is a portable AT Protocol record — you choose which provider actually runs it.

Default provider

The default is Cloudflare. No API key needed when using the managed Pocketenv platform.

Specifying a provider

Via SDK:

Supported providers

Lightweight sandboxes powered by Cloudflare Workers. No credentials needed on the managed platform.
Full-featured development environments via Daytona.
Required credentials — store them as sandbox preferences:
Serverless sandboxes on Vercel.
Secure sandboxes optimized for AI agents via E2B.
Infrastructure-grade sandboxes via Runloop.
AI-native compute via HopX.
Deno-based sandboxes via Deno Deploy.
Fast micro-VMs via Fly.io Sprites.
Pocketenv-native provider via Blaxel.

Base images

The --base flag sets the starting template for your sandbox. Bases are AT Protocol URIs but you can use short names: