Early access, free today

Hold the reins on your
AI coding agents.

Get notified when an agent stalls, inspect the context, approve actions, open files, check git, or run a command from your phone. Your code never leaves your machine.

Free · Self-hosted · Cross-vendor: Claude Code, Codex, Cursor, Gemini & Aider

Built with DevReins

Your agents run. You stay in the loop.

DevReins runs on your dev machine and reaches your phone over an encrypted tunnel. The moment an agent needs you, your phone knows.

Agent working
Claude Code running on your machine
Agent stalls
Needs input, hits a permission
Your phone lights up
Push notification, instant
You approve
One tap from anywhere
Agent resumes
Picks up exactly where it stopped

The full intervention loop, on your phone.

Everything you need to supervise, unstick, and redirect your agents from wherever you are. Cross-vendor: Claude Code, Codex, Cursor, Gemini, and Aider.

Agent sessions feed showing Claude and Gemini processes with live status File browser with directory tree and syntax-highlighted code preview Git commit log with per-file diff showing green additions and red deletions Full terminal session via tmux showing a test run with passing results Dev server preview framing a localhost Vite app in a mobile viewport Open URL view with recent history and a live embedded page preview
Live agent feed
Every agent on your machine in real time. Know instantly if they're working, waiting for you, or stuck.

Swipe the phone or tap a tab. It also cycles on its own.

Live: your agent just asked for permission
Claude Code needs your approval now
C Claude Code wants to run a command
rm -rf ./dist && npm run build

One tap to approve, redirect, or stop. Full transcript context so you know exactly what the agent was doing.

Built by an engineer who's been in AI since 2018.

I'm a robotics software engineer and AI developer who ships million-dollar products using AI agents. DevReins is what makes operating at that scale possible as one person.

I've been running AI tools in professional development since 2018, back when most engineers hadn't heard of them. Today I'm a full-time robotics software engineer while simultaneously running an AI-powered portfolio that spans civic tech (USPTO patent pending), ML trading systems, compliance tooling, content generation pipelines, GTM infrastructure, and more. Dozens of active projects, all driven by AI agents working around the clock. The problem was always the same: an agent would stall waiting for a decision and I wouldn't find out until morning. I built DevReins so that never happens. My phone is the control room. It's what lets one engineer ship at the scale of a team.

ER
Eric Rosenfeld Robotics Software Engineer · AI developer since 2018 · Founder, ChangeUs & Clausi

Free while it's early. Genuinely.

No credit card, no trial timer, no asterisks. Built for engineers who move fast and run AI constantly. Use it, break it, tell me what's missing. That's the deal during early access.

Free (early access)
$0
Windows 11 + WSL2 today; Mac/Linux in v1.1
  • All 6 panels: Agents, Terminal, Files, Git, Dev preview, Open URL
  • Works with Claude Code, Codex, Cursor, Gemini, Aider
  • Unlimited agents and sessions
  • Log in on your phone, pick your machine — no tunnel or network setup
  • Self-hosted: your code never touches our servers
  • Runs in plain sight on your box; source-available release planned

Common questions

Which AI coding agents does DevReins work with?

Claude Code, OpenAI Codex, Cursor CLI, Gemini CLI, and Aider — and any agent that runs in a terminal on your machine. DevReins watches the sessions themselves, so it isn't tied to one vendor.

Does my code ever leave my machine?

No. DevReins is self-hosted: the server runs on your dev box and traffic to your phone is end-to-end encrypted. The relay only forwards ciphertext — it can't read your code, terminal output, or conversations.

Do I need to set up a tunnel, VPN, or port forwarding?

No. Your machine connects outbound to the relay, so it works behind NAT and firewalls with zero network configuration. Install the app, run the server, log in, and pick your machine.

Is DevReins a remote desktop app?

No. Remote desktop gives you a tiny screen and a mouse. DevReins is built around your agents: it notifies you the moment one stalls or needs approval and lands you on the exact blocking context — then gives you files, git, and a terminal to act.

Does it work on iPhone?

Yes — log in from Safari and add DevReins to your home screen; it runs as a full-screen web app. A native iOS app ships with Pro.

How much does DevReins cost?

Free during early access — no credit card, no trial timer. Pro ($19/mo: managed relay, push notifications, native iOS app) opens in v1.1.

Drop your email

Join engineers who run AI agents around the clock and need to stay in the loop from anywhere. One email when Pro opens, no spam.

Your email is used only to send the launch notification and onboarding sequence. See our privacy policy.