Sandboxes

Open Mercato • Developer Sandboxes

Learn AI-Assisted
Engineering

Industry-standard developer sandboxes for working with state-of-the-art coding agents on large-scale projects built on Open Mercato.

Get started — Sign upI have an account
~/sandbox
$ npx create-mercato-app my-store
✓ provisioning workspace
✓ pre-installing opencode, codex, claude
↳ ready in 2m 41s — open in vscode ▍

What's inside

Everything pre-wired, nothing to install

Pre-warmed Mercato sandboxes

Each signup gets a fresh Open Mercato dev environment in a Coder workspace. Postgres, Redis, code-server — all running.

AI agents at your fingertips

opencode, codex, and claude code CLIs are pre-installed in every workspace. Paid AI access is provisioned per user through OpenRouter-backed Coder secrets.

Browser-based VS Code

Open the workspace in a tab. Edit files, run commands, watch the splash screen build your app — no local setup.