Run official Claude Code / Codex / Cursor Agent / Grok Build / OpenCode / Kimi / Copilot / Antigravity / Pi / DeepSeek Harness sessions and control them remotely through a Web / PWA / Telegram Mini App.

Why HAPI? HAPI is a local-first alternative to Happy. See Why Not Happy? for the key differences.

Features

Seamless Handoff - Work locally, switch to remote when needed, switch back anytime. No context loss, no session restart.
Shared Codex Sessions - Use Codex from your terminal and phone at the same time. Requires Codex 0.154.0+. Usage and limits.
Native First - HAPI wraps your AI agent instead of replacing it. Same terminal, same experience, same muscle memory.
AFK Without Stopping - Step away from your desk? Approve AI requests from your phone with one tap.
Your AI, Your Choice - Claude Code, Codex, Cursor Agent, Grok Build, OpenCode, Kimi, Copilot, Antigravity, Pi, DeepSeek Harness—different agents, one unified workflow.
Terminal Anywhere - Run commands from your phone or browser, directly connected to the working machine.
Voice Control - Talk to your AI agent hands-free using the built-in voice assistant.
Workspace Browser - Opt-in via one or more hapi runner start --workspace-root <path> flags: browse scoped file trees from the web and start sessions in allowed subdirectories.

Demo

https://github.com/user-attachments/assets/38230353-94c6-4dbe-9c29-b2a2cc457546

Getting Started

npx @twsxtd/hapi hub --relay     # start hub with E2E encrypted relay
npx @twsxtd/hapi                 # choose an agent and start a session

hapi server remains supported as an alias.

Use hapi <agent> [options] to start an agent directly, for example hapi claude or hapi codex. Scripts must specify the agent explicitly. hapi --help shows HAPI's commands and supported agents.

The terminal will display a URL and QR code. Scan the QR code with your phone or open the URL to access.

The relay uses WireGuard + TLS for end-to-end encryption. Your data is encrypted from your device to your machine.

For self-hosted options (Cloudflare Tunnel, Tailscale), see Installation

Docs

Native apps (iOS / Android)

Fully native SwiftUI and Kotlin Compose clients are in development under ios/ and android/, with chat, approvals, session creation, files, dictation, and push notifications. Pair using the companion QR code printed by the hub or shown in web Settings, or enter the hub URL and token manually. See the client contract docs.

Build from source

Requires Bun 1.4.0.

bun install
bun run build:single-exe

Credits

HAPI means "哈皮" a Chinese transliteration of Happy. Great credit to the original project.