coreinAn open-source personal agent for every device you own.

One agent on your phone, your computer and the web, one account across them. It does things instead of answering questions, keeps going when the app is closed, remembers you in files you can read, and asks before anything you could not undo.

Get started

Download

Run it yourself

⚡

Does things

A Linux shell, a browser, MCP servers and skills, and, with Hands on, the apps on your phone and the windows on your computer through their screens.

Every device

🛡️

Asks first

A stop before deleting, sending or paying, remembered for once, this chat or always. Passwords and codes are yours to type.

How the guard works

📱

Reaches your other devices

Say it on the phone, it runs on your PC. Approvals come back to the device in your hand.

The hub

⏰

Keeps going

Goals checked on a schedule, routines that run while the app is closed, a feed written for you each morning.

Feed, Goals, Routines

📝

Remembers you

What it is, what it knows about you and when it wakes are Markdown files you can read and edit.

Memory and files

🔑

Your key, your relay

Model requests go from your device to the provider you chose. The relay does sign-in and sync, and you can run it yourself.

Bring your own key

Install

Platform	Get it	Then read
Android 8.0+, 64-bit	corein-1.1.0-arm64.apk	Android
Windows 10+	corein-Desktop-1.1.0-win-x64.exe	The desktop app
macOS 12+	Apple Silicon · Intel	The desktop app
Linux x64	AppImage · .deb · tar.gz	The desktop app
iPhone / iPad	Build it yourself for now	iOS
Web and servers	`bash scripts/self-host.sh --local` for your own relay; `docker compose up -d app` for the web app	Run it yourself

Every file and its checksum is on the latest release. Windows shows Run anyway and macOS Open Anyway once; the installers are not yet signed with paid certificates.

Three steps to a working agent

Install and sign in. Open the app and sign in with an e-mail. The relay it signs in to does sign-in, the hub and conversation sync; it holds no model key. To use a relay of your own, tap Use a different server on the sign-in screen.
Add a model key. Settings → Models: Google Gemini, OpenRouter, OpenAI, DeepSeek or any OpenAI-compatible endpoint. The key goes from your device to that provider and nowhere else. Bring your own key has the steps per provider.
Give it something to do. "Create a file on my desktop with three lines about today", "open the news site and give me the top three headlines", or switch on Hands and say "open Notepad and type hello". The troubleshooting page has the answer when something does not.

Where to go next

You want to	Read
Use it on the phone, the desktop or the web	Android · iOS · The desktop app · The web console
Let your devices work together	Every device · The hub
Let it operate a screen	The screen as a hand · Computer use on the desktop
Connect your tools and chat apps	Connectors · The browser · Coding agents
Understand what it keeps and what it may do	Privacy · The Sentinel
Run the relay or the web app on a server	Run it yourself · The relay · Deployment
Change the code	Architecture · Configuration · Roadmap

Free software

corein is GPL-3.0-or-later. The source, the licence and the notices are in the repository; every release is a tagged commit you can build yourself. Tell us where it broke for you: open an issue.