The multi-device control room to orchestrate teams of 100+ coding agents
From your phone, desktop and browser.
Claude Code, Codex, OpenCode, Pi and more, working together and in parallel on your own machines.
Sessions can spawn subagents across agents: e.g. Claude asking Codex for a review, or Codex delegating work to Claude subagents. Switch agents mid-session. Approve, steer, review and commit from wherever you are.
Open source · Self-hostable · End-to-end encrypted
Latest Happier project update
Get started
1. Install on your computer
The desktop app is the recommended way in: it sets up the CLI and the daemon for you.
macOS/Linux:
curl -fsSL https://happier.dev/install | bash
Windows:
iwr https://happier.dev/install.ps1 -useb | iex
If you specifically want the npm package instead: npm install -g @happier-dev/cli (CLI docs).
Paste this into your agent:
Set up Happier on this computer by following https://docs.happier.dev/getting-started/agent-setup.mdx
Fetch that file raw (for example with curl) and follow it step by step with me.
It asks what it needs to know, confirms each change, and leaves the sign-in approval and your agent's own login to you. Set up with your coding agent
Install the Happier session control Grok Bot on X. On first run it installs the Happier CLI on its own computer, pairs with your Happier Cloud account or self-hosted relay, and starts the daemon. You control how hands-on it is: watch only, assist, or drive sessions. Grok Bot integration
One command installs the CLI and the daemon on the remote host (release-signature verified) and registers it as one of your machines:
happier machine setup --ssh user@host
To sign the remote machine in without a browser on its side, run this from a machine where you are already signed in:
happier auth pair-remote --ssh user@host
Headless alternative on the remote host itself: happier auth login --no-open --method web prints an authorization URL you approve from any browser. Machines and the daemon
You sign in from the app, or on first run.
2. Add your phone
Sign in with the same account and your sessions, machines and settings are already there.
3. Start a session
In the app → Press New session, pick the machine, the folder and the agent. No terminal needed.
Or in the terminal, from any project folder:
happier # Claude Code
happier codex # Codex
happier opencode # OpenCode
Either way, the session shows up everywhere at once: keep typing in the terminal, follow along and approve from your phone, review in the browser. happier --help lists the other agents and commands.
What you can do
Also in the box
- Session handoff. Move a live Claude Code or OpenCode session to another machine and bring the working tree along if you want it. Session handoff
- Session sharing. Invite someone with view or edit access, or publish a read-only public link. Session sharing
- Happier as an MCP server.
happier mcp serve lets any MCP host create sessions, send messages and run session actions. Happier as an MCP server · CLI
- Grok Bot integration. Install and manage Happier sessions through Grok on X — setup, monitoring, and session control in one shareable bot. Grok Bot integration
- MCP servers, configured once. Use them with every agent on every machine. MCP servers
- Add a machine over SSH from the app or the CLI. Machines and the daemon
- Self-hosting. The self-hosted relay runs the same apps, encryption and features. Self-hosting
- End-to-end encryption. Content is encrypted on your devices by default. Security
Step-by-step guides live at guides.happier.dev.
How Happier works
Phone Desktop Browser
│ │ │
└────────────────┼────────────────┘
│
▼
Happier relay (hosted or yours)
syncs end-to-end encrypted sessions
between your devices and machines
│
▼
Your machines (laptop, desktop, VPS, dev box)
the Happier daemon starts and manages
agent processes where your code lives
│
▼
Claude Code · Codex · OpenCode · Pi · ...
each agent talks to its own model
provider directly
The relay stores and forwards content it cannot read: session content is encrypted on your devices before it reaches the server. The server only processes what routing needs, such as session ids, timestamps, turn status and usage metadata. Your agents keep talking to their model providers directly.
Self-hosting
Run your own relay with one command:
happier relay host install --mode system
This installs and updates a managed relay service on the current machine. For a remote host: happier relay host install --ssh user@host --mode system.
The self-hosting docs (also reachable at happier.dev/self-host) cover the details, with Docker and Proxmox as alternatives.
This is the beginning of the README. Read the rest at the original. Read the full README ↗
