Install
Three steps. You'll be using it tonight.
First install HaryAI (the master switch), then install the AI tool you want (Codex or Claude Code — either is enough, both is fine), then open HaryAI and turn the switch on. Every tool connects automatically.
Step 1 · Install HaryAI
Required. A 9 MB desktop app for macOS and Windows. Once installed, every Claude and Codex tool on your machine connects through here automatically.
v0 ships unsigned. macOS: right-click the app → Open. Windows SmartScreen: More info → Run anyway.
Install your AI tool
Codex or Claude Code — either is enough on its own, both is fine too.
Codex Desktop App
recommendedOpenAI's official GUI client — the easiest entry for most people: visual conversations, file tree, history, no command line needed. Since May 2026 it includes a Chrome plugin: open the app → Plugins → Chrome and follow the setup. Codex can then work directly inside your browser tabs.
Chrome plugin is built in：Once the Codex app is installed, open it → Plugins → Chrome and follow the guided setup. No separate download or Chrome Web Store install needed. (Launched May 2026 · not yet available in EU / UK)
Claude Code
Anthropic's official terminal-based assistant: write code, refactor files, run scripts — all from the shell. One-line install, works out of the box. Once installed, HaryAI handles the network routing for it too.
macOS / Linux terminal
curl -fsSL https://claude.ai/install.sh | bash
Windows PowerShell
irm https://claude.ai/install.ps1 | iex
Other ways to use Codex