control plane online

On-demand browser sandboxes
for AI agents

Real Chromium, isolated per session, driveable over CDP / Playwright. Watch sessions live in your browser via noVNC. Spin one up in under a second.

active sessions
us-east-1
region
< 1s
cold start
Quickstart

A session in two HTTP calls

~/agent
Why sandstack

Built for the way agents actually run

CDP

Playwright-ready

chromium.connectOverCDP() against the session URL. No SDK to install, no proprietary surface.

Live view, free

Each session ships with a noVNC URL. Open it in any tab to watch the agent click and type.

Isolated by design

Fresh container per session, dropped capabilities, no shared profile. Killed after 15 min idle.