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Claude Code Documentation/Tools

Happy: Mobile and Web Client for Claude Code - Remote Coding & AI Assistant

Transform your home computer running Claude Code/Codex into a remotely accessible AI coding assistant. Control your AI from anywhere via mobile phone and use it as your daily AI assistant with Sub Agents and MCP tools integration.

Happy: Mobile and Web Client for Claude Code - Remote Coding & AI Assistant

⭐ GitHub: slopus/happy (2.1K stars)

Happy transforms your home computer running Claude Code or Codex into a remotely accessible AI coding assistant. With Happy, you can control your AI from anywhere via your mobile phone, making remote coding seamless and turning your AI into a powerful daily assistant that can handle tasks like email aggregation, real-time AI news tracking, and even automated social media posting through integrated Sub Agents and MCP tools.

🚀 What is Happy?

Happy is an open-source solution that allows you to:

  • Access Claude Code on mobile - iOS, Android, and web platforms
  • Control multiple sessions - Run several Claude Code instances simultaneously
  • Voice interaction - Hands-free coding with real-time voice execution
  • End-to-end encryption - Your code never leaves your devices unencrypted
  • Zero workflow disruption - Works with your existing tools and environments
  • Remote AI Assistant - Access your home computer's Claude Code/Codex from anywhere
  • Sub Agents Integration - Use your custom Sub Agents and MCP tools remotely
  • Automated Task Execution - Handle email aggregation, news tracking, and social media posting

🎯 Key Features

📱 Multi-Platform Access

🔒 Security & Privacy

  • End-to-end encryption - Messages encrypted between your devices
  • No telemetry or tracking - Your data stays private
  • Open source - MIT licensed, auditable codebase
  • Local processing - Runs on your hardware

🎙️ Voice Control

  • Real-time voice execution - Speak commands and watch them execute
  • Hands-free coding - True voice-to-action, not just transcription
  • Voice agent - Advanced voice interaction beyond simple dictation

🔄 Multi-Session Management

  • Parallel sessions - Run multiple Claude Code instances
  • Context switching - Switch between frontend, backend, and DevOps tasks
  • Session continuity - Resume sessions across devices
  • Smart notifications - Get alerted when input is needed

🛠️ How It Works

Happy uses a three-component architecture:

1. CLI Program (happy)

npm install -g happy-coder
happy

The CLI runs on your computer, wrapping Claude Code and encrypting session data before sending it to the relay server.

2. Mobile/Web App

The client apps receive encrypted data from the server and provide the interface for monitoring and controlling Claude Code sessions.

3. Relay Server

A secure server that passes encrypted messages between your computer and mobile devices without being able to read the content.

📦 Quick Start

Step 1: Install CLI

npm install -g happy-coder

Step 2: Download Mobile App

Step 3: Start Using

# Instead of 'claude', run 'happy'
happy

🔥 Why Choose Happy?

Zero Workflow Disruption

Keep using your favorite tools, editors, and development environments exactly as before. Happy integrates without requiring changes to your existing workflow.

Mobile-First Design

Unlike desktop-only solutions, Happy brings the full Claude Code experience to mobile devices with an interface optimized for touch and voice interaction.

True Voice Coding

Go beyond dictation with intelligent voice commands that understand coding context and execute actions in real-time.

Multi-Project Management

Handle multiple projects simultaneously with separate Claude Code sessions, each maintaining its own context and state.

Community-Driven

Built by engineers who needed mobile access to their AI coding sessions, with an active community and continuous improvements.

Remote AI Assistant Capabilities

Turn your home computer into a 24/7 accessible AI assistant that can handle complex tasks through your custom Sub Agents and MCP integrations, making your AI work for you even when you're away from your desk.

🏗️ Project Components

Happy is part of a larger ecosystem:

  • happy-cli - Command-line interface
  • happy-server - Backend server for encrypted sync
  • happy-coder - Mobile and web client (main repository)

📱 Use Cases

Remote Coding & Development

Leave your Claude Code or Codex running on your home computer and access it remotely from your mobile phone. No need to worry about being tied to your desk - check progress, make adjustments, and continue coding from anywhere.

Daily AI Assistant with Sub Agents

Transform your AI setup into a powerful daily assistant by leveraging your pre-configured Sub Agents. Integrate different MCP tools to:

  • Aggregate Emails: Automatically process and summarize large volumes of emails
  • Track AI News: Stay updated with real-time AI news and developments
  • Automate Social Media: Automatically post updates and content to platforms like Twitter
  • Handle Routine Tasks: Automate repetitive tasks and workflows

On-the-Go Monitoring

Check how Claude is progressing on your projects during lunch breaks or commutes.

Voice-Driven Development

Code hands-free while walking, exercising, or in situations where typing isn't practical.

Multi-Device Workflows

Start a coding session on your desktop, continue on mobile, and switch back seamlessly.

Team Collaboration

Share encrypted session links with team members for collaborative debugging and code review.

Remote Development

Access and control your development environment from anywhere with an internet connection.

🎥 Demo and Resources

🤝 Community and Support

Happy is developed by a team of engineers across Bay Area coffee shops and hacker houses, born from the real need to check on Claude Code progress while away from keyboards.

Contributing

  • Open source - MIT licensed with a well-organized codebase
  • Friendly community - Welcoming to contributors of all levels
  • Active development - Regular updates and feature additions

Getting Help

🔮 The Future of Mobile AI Development

Happy represents the next evolution in AI-assisted development tools, breaking the barrier between desktop and mobile development workflows. As AI coding assistants become more powerful, having mobile access becomes increasingly important for maintaining productivity and staying connected to your projects.

Whether you're a solo developer working on side projects or part of a team building the next big thing, Happy ensures you never lose touch with your AI coding assistant, no matter where you are.

Ready to take Claude Code mobile? Download Happy today and experience the freedom of AI-assisted coding from anywhere.

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