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voiceroid_daemon-mcp

by mohemohe
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voiceroid_daemon-mcp

MCP (Model Context Protocol) server for VOICEROID2 text-to-speech via voiceroid_daemon.

Features

  • Text-to-speech generation with VOICEROID2 voices

  • Text-to-kana phonetic conversion

  • Customizable voice parameters (volume, speed, pitch, emphasis)

  • Audio playback support for macOS, Windows, and Linux

  • Basic authentication support

Prerequisites

  • Node.js 18 or higher

  • voiceroid_daemon running on your system

  • VOICEROID2 installed (for voiceroid_daemon)

Installation

# Clone the repository git clone https://github.com/mohemohe/voiceroid_daemon-mcp.git cd voiceroid_daemon-mcp # Install dependencies npm install

Configuration

Create a .env file in the project root (optional):

# voiceroid_daemon server URL (default: http://127.0.0.1:8080) VOICEROID_DAEMON_URL=http://127.0.0.1:8080 # Basic authentication (if required) VOICEROID_DAEMON_USERNAME=your_username VOICEROID_DAEMON_PASSWORD=your_password # Default voice parameters (optional) VOICEROID_DEFAULT_VOLUME=1.0 # 0-2 VOICEROID_DEFAULT_SPEED=1.3 # 0.5-4 VOICEROID_DEFAULT_PITCH=1.0 # 0.5-2 VOICEROID_DEFAULT_EMPHASIS=1.1 # 0-2 VOICEROID_DEFAULT_PAUSE_MIDDLE=150 # 80-500 VOICEROID_DEFAULT_PAUSE_LONG=370 # 100-2000 VOICEROID_DEFAULT_PAUSE_SENTENCE=800 # 0-10000

Usage

Running the MCP Server

# Run directly with tsx (no build required) npm start # Or for development with auto-reload npm run dev

Configuring with Claude Desktop

Add the following to your Claude Desktop configuration file:

macOS: ~/Library/Application Support/Claude/claude_desktop_config.json Windows: %APPDATA%\Claude\claude_desktop_config.json

{ "mcpServers": { "voiceroid-daemon": { "command": "npx", "args": ["tsx", "/path/to/voiceroid_daemon-mcp/src/index.ts"], "env": { "VOICEROID_DAEMON_URL": "http://127.0.0.1:8080" } } } }

Available Tools

test_connection

Test the connection to voiceroid_daemon server.

No parameters required

convert_text

Convert Japanese text to phonetic kana reading.

Parameters:

  • text (string, required): Text to convert to kana

speak_text

Generate and play speech audio from text.

Parameters:

  • text (string, required): Text to speak

  • kana (string, optional): Phonetic reading in kana

  • volume (number, optional): Voice volume (0-2, default: 1)

  • speed (number, optional): Speech speed (0.5-4, default: 1)

  • pitch (number, optional): Voice pitch (0.5-2, default: 1)

  • emphasis (number, optional): Emphasis level (0-2, default: 1)

Example Usage in Claude

Once configured, you can use the tools in Claude:

Use the test_connection tool to check if voiceroid_daemon is running. Convert "こんにちは" to kana using the convert_text tool. Use speak_text to say "こんにちは、今日はいい天気ですね" with speed 1.2.

Troubleshooting

Connection Failed

  1. Ensure voiceroid_daemon is running

  2. Check the URL in your configuration

  3. Verify firewall settings allow connections

  4. Test with curl: curl http://127.0.0.1:8080/

Audio Playback Issues

  • macOS: Uses afplay (built-in)

  • Windows: Uses PowerShell's Media.SoundPlayer

  • Linux: Requires aplay (usually part of alsa-utils)

Authentication Errors

If voiceroid_daemon requires authentication, ensure you've set:

  • VOICEROID_DAEMON_USERNAME

  • VOICEROID_DAEMON_PASSWORD

Development

# Type checking npm run typecheck # Linting npm run lint # Run in development mode npm run dev

License

MIT

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