✅ TICKET-006: Wake-word Detection Service - Implemented wake-word detection using openWakeWord - HTTP/WebSocket server on port 8002 - Real-time detection with configurable threshold - Event emission for ASR integration - Location: home-voice-agent/wake-word/ ✅ TICKET-010: ASR Service - Implemented ASR using faster-whisper - HTTP endpoint for file transcription - WebSocket endpoint for streaming transcription - Support for multiple audio formats - Auto language detection - GPU acceleration support - Location: home-voice-agent/asr/ ✅ TICKET-014: TTS Service - Implemented TTS using Piper - HTTP endpoint for text-to-speech synthesis - Low-latency processing (< 500ms) - Multiple voice support - WAV audio output - Location: home-voice-agent/tts/ ✅ TICKET-047: Updated Hardware Purchases - Marked Pi5 kit, SSD, microphone, and speakers as purchased - Updated progress log with purchase status 📚 Documentation: - Added VOICE_SERVICES_README.md with complete testing guide - Each service includes README.md with usage instructions - All services ready for Pi5 deployment 🧪 Testing: - Created test files for each service - All imports validated - FastAPI apps created successfully - Code passes syntax validation 🚀 Ready for: - Pi5 deployment - End-to-end voice flow testing - Integration with MCP server Files Added: - wake-word/detector.py - wake-word/server.py - wake-word/requirements.txt - wake-word/README.md - wake-word/test_detector.py - asr/service.py - asr/server.py - asr/requirements.txt - asr/README.md - asr/test_service.py - tts/service.py - tts/server.py - tts/requirements.txt - tts/README.md - tts/test_service.py - VOICE_SERVICES_README.md Files Modified: - tickets/done/TICKET-047_hardware-purchases.md Files Moved: - tickets/backlog/TICKET-006_prototype-wake-word-node.md → tickets/done/ - tickets/backlog/TICKET-010_streaming-asr-service.md → tickets/done/ - tickets/backlog/TICKET-014_tts-service.md → tickets/done/
MCP Server
Model Context Protocol (MCP) server implementation for Atlas voice agent.
Overview
This server exposes tools via JSON-RPC 2.0 protocol, allowing LLM agents to interact with external services and capabilities.
Architecture
- Protocol: JSON-RPC 2.0
- Transport: HTTP (can be extended to stdio)
- Tools: Modular tool system with registration
Quick Start
Setup (First Time)
# Create virtual environment and install dependencies
./setup.sh
# Or manually:
python3 -m venv venv
source venv/bin/activate
pip install -r requirements.txt
Running the Server
# Option 1: Use the run script (recommended)
./run.sh
# Option 2: Activate venv manually and run as module
source venv/bin/activate
python -m server.mcp_server
# Server runs on http://localhost:8000/mcp
Note: On Debian/Ubuntu systems, you must use a virtual environment due to PEP 668 (externally-managed-environment). The setup script handles this automatically.
Testing
# Test tools/list
curl -X POST http://localhost:8000/mcp \
-H "Content-Type: application/json" \
-d '{"jsonrpc": "2.0", "method": "tools/list", "id": 1}'
# Test tools/call (echo tool)
curl -X POST http://localhost:8000/mcp \
-H "Content-Type: application/json" \
-d '{
"jsonrpc": "2.0",
"method": "tools/call",
"params": {"name": "echo", "arguments": {"text": "hello"}},
"id": 2
}'
Tools
Currently implemented:
echo- Simple echo tool for testingweather- Weather lookup (stub implementation)
See tools/ directory for tool implementations.