Moltbot Body
Voice conversation · Moltbot AI · Expressive motion

Reachy Mini App

Give Moltbot a physical presence.

Connect your Moltbot AI assistant to a Reachy Mini robot. Listen through the microphone, transcribe with Whisper, respond through Moltbot, and speak with natural TTS—all while moving expressively.

Explore features See how it works
Local Whisper STT Moltbot Gateway ElevenLabs TTS Expressive head movement 
Microphone → VAD → Whisper STT
                      ↓
              Moltbot Gateway
                      ↓
              ElevenLabs TTS → Speaker
                      ↓
              MovementManager
              HeadWobbler

End-to-end voice conversation pipeline with expressive robot motion.

What's inside

A complete voice interface for your robot

Moltbot Body combines speech recognition, AI conversation, and expressive motion into a seamless experience.

🎤

Voice activation

Listens continuously and detects when you're speaking using voice activity detection.

📝

Local transcription

Fast, private speech-to-text using Whisper running locally on your machine.

🧠

Moltbot brain

Claude-powered responses through the Moltbot gateway with full tool access and memory.

🔊

Natural voice

High-quality streaming text-to-speech through ElevenLabs for natural conversation.

💃

Expressive motion

Audio-driven head wobble and breathing animations bring the robot to life while speaking.

⚡

Low latency

Optimized pipeline with profiling tools to measure and minimize response time.

How it works

From speech to response in under a second

  • 🎤 Robot microphone captures your voice continuously.
  • 🔇 Voice Activity Detection identifies when you stop speaking.
  • 📝 Whisper transcribes your speech locally and privately.
  • 🧠 Moltbot gateway processes your message with full AI capabilities.
  • 🔊 ElevenLabs streams natural voice output in real-time.
  • 🤖 Head wobbles expressively while the robot speaks.

Prerequisites

What you need to get started

This app requires a running Moltbot gateway, an ElevenLabs API key for TTS, and a Reachy Mini robot connected to your network.

Moltbot Gateway ElevenLabs API Reachy Mini Python 3.12+