using-exe-dev

About

exe.dev provides Linux VMs with persistent disks, instant HTTPS, and built-in auth. All management is via SSH.

Documentation

• Docs index: https://exe.dev/docs.md
• All docs in one page (big!): https://exe.dev/docs/all.md

The index is organized for progressive discovery: start there and follow links as needed.

Quick reference

ssh exe.dev help             # show commands
ssh exe.dev help <command>   # show command details
ssh exe.dev new --json       # create VM
ssh exe.dev ls --json        # list VMs
ssh exe.dev rm <vm>          # delete VM
ssh <vm>.exe.xyz             # connect to VM
scp file.txt <vm>.exe.xyz:~/ # transfer file

Every VM gets https://<vm>.exe.xyz/ with automatic TLS.

First-time signup

These outputs are not hangs or bugs:

• {"error":"Registration is required.","action":{"type":"command","command":"ssh -t ..."}} (exit 1): the SSH key has no account. Run action.command in a PTY after getting the human's email and consent.
• {"error":"Choose a plan to start creating VMs. ..., "action":{"type":"command","command":"ssh ... billing activate --json"}}: the account has no plan. Run action.command and see Recovery.

Rules

• Before running ssh exe.dev, ask the human for the email and confirm they want an exe.dev account. Never guess the email. If the email prompt is pre-filled, confirm it or clear it with Ctrl-U.
• Never read the user's mailbox, enter card details, or do the ChatGPT sign-in. The human verifies, authorizes, and pays.
• Opening a link only logs the browser in. It is not consent to subscribe.
• Links are bearer credentials. Put them only in your reply to the human, never in files, logs, commits, or issues. If one leaks, tell the human not to use it.

Run it in a PTY. Closed stdin or EOF cancels registration. Each wait lasts up to 10 minutes, and Ctrl-C ends it. Start it detached and poll every 15-30 s with short commands (or use expect or Python pty):

tmux new-session -d -s exe-signup -x 120 -y 40 'ssh exe.dev'
tmux capture-pane -p -J -t exe-signup
tmux send-keys -t exe-signup '<email>' Enter

Tell the human

• Verification email sent to:: click the link in the email from exe.dev.
• Click here to verify: or Verify with <provider>:: open that URL.
• Choose a plan to start creating VMs:: ask Personal (one person), Work (a team), or Later. Type personal, work, or later.
• Open this link to activate: give the URL. It works once and expires in 15 minutes. Personal offers a free 7-day trial by linking a paid ChatGPT subscription (no card), or a Stripe subscription. Work is a Stripe team subscription.
• Connect a paid ChatGPT subscription or subscribe with Stripe: in the welcome tips: a Personal link. Hand it over the same way.

Outcomes

• ✓ Personal plan active., ✓ Work plan active., ✓ ChatGPT connected.: ready. A ChatGPT trial starts with the first VM.
• Skipped., Skipped in the browser., Timed out waiting for activation., Could not create an activation link., or later: new still fails. See Recovery.

Continue. Send exit, kill the tmux session if it remains, and rerun the original ssh exe.dev new --json.

Recovery

• No plan or link expired: run the error's action.command. billing activate --json returns {"url":...}, the same Personal link as the welcome tip. Hand it over the same way, then rerun ssh exe.dev new --json once the human confirms. If it returns {"error":...} (exit 1), activation is unavailable for this account; ssh exe.dev billing manage --json returns a Stripe-only {"url":...} instead.
• Verification still pending. or Email verification timed out.: the email link works for 15 minutes after sending. Once the human clicks it, rerun ssh exe.dev new --json. If it expired or never came, rerun the PTY session.
• Your turn ends mid-wait: tell the human the link lasts 15 minutes and to tell you when done. Then rerun ssh exe.dev new --json.
• No PTY tool: after the human agrees, printf '%s\n' "$EMAIL" | ssh exe.dev sends the email and exits with Verification still pending. It skips the plan prompt, so expect the no-plan error.

A tale of two SSH destinations

• ssh exe.dev <command> — the exe.dev lobby. A REPL for VM lifecycle, sharing, and configuration. Does not support scp, sftp, or arbitrary shell commands.
• ssh <vm>.exe.xyz — a direct connection to a VM. Full SSH: shell, scp, sftp, port forwarding, everything.

Working in non-interactive and sandboxed environments

Coding agents often run SSH in non-interactive shells or sandboxes. Common issues and workarounds:

scp/sftp failures: Ensure you're targeting <vm>.exe.xyz rather than exe.dev. Use ssh-based workarounds.

Hung connections: Non-interactive SSH can block on host key prompts with no visible output. Use -o StrictHostKeyChecking=accept-new on first connection to a new VM.

SSH authentication: Use the user's existing SSH agent or host configuration. If authentication fails, ask the user to configure the appropriate identity for both exe.dev and *.exe.xyz. Never inspect, copy, or transmit a private key.