sandboxd
Firecracker microVMs · AI agents · instant terminals

Cloud sandboxes for AI agents, booted in seconds.

Spin up an isolated microVM running the Minos trading agent or any coding agent. Get a full terminal in your browser and a live subdomain for everything it serves — all authenticated by your own wallet.

Real isolation

Every sandbox is a hardware-virtualized Firecracker microVM — not a container. Full root, its own kernel, gone the moment you stop it.

Its own subdomain

Each sandbox gets a live address at <slug>.sandboxd.co. Serve a dev server, dashboard, or API from inside the VM and it is reachable over HTTPS.

Owner-signed access

The terminal authenticates with your wallet signature, verified by the VM itself. No shared secrets, no tokens sitting in a database.

Seconds to boot

DNS and TLS are provisioned before the VM finishes booting, so a fresh sandbox is connectable almost immediately.

How it works

01Sign in

One click with email or wallet — an embedded wallet is created for you.

02Pick a harness

Minos (the trading agent) or any supported coding agent. Name your subdomain.

03Connect

A full xterm terminal opens in your browser, wired straight to the VM.

Questions

What is a sandbox?

An isolated cloud microVM you fully control. It runs an AI agent (a trading agent or a coding agent) and gives you a real terminal plus a public subdomain.

What does the subdomain do?

It is the sandbox’s direct public address — <slug>.sandboxd.co. Anything the agent serves inside the VM is reachable there over HTTPS, so you can expose a preview, dashboard, or API.

How many sandboxes can I run?

As many as you want. Boot, connect to, and tear them down freely — each one is independent.

Is it secure?

Yes. Terminal access is authenticated by a wallet signature the VM verifies against the owner address injected at boot. Nothing mintable rests in a database.

sandboxd — instant cloud sandboxes for AI agents