elevenlabs-streaming-mcp-server

CodingButter/elevenlabs-streaming-mcp-server

3.2

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ElevenLabs Streaming MCP Server is a high-performance server designed for text-to-speech conversion with streaming capabilities, integrating seamlessly with the ElevenLabs SDK.

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ElevenLabs Streaming MCP Server

A high-performance MCP (Model Context Protocol) server for ElevenLabs text-to-speech with streaming support!

Features

  • ✅ Official ElevenLabs SDK integration
  • ✅ True streaming - no file saving!
  • ✅ Direct pipe to ffplay for instant playback
  • ✅ No token limit issues
  • ✅ Environment-based configuration
  • ✅ Voice listing support
  • ✅ Works with npx - no installation needed!

Quick Start

Add to your .mccp.json:

{
  "mcpServers": {
    "elevenlabs": {
      "command": "npx",
      "args": ["elevenlabs-streaming-mcp-server"],
      "env": {
        "ELEVENLABS_API_KEY": "your_api_key_here",
        "ELEVENLABS_VOICE_ID": "Au8OOcCmvsCaQpmULvvQ",
        "ELEVENLABS_MODEL_ID": "eleven_flash_v2",
        "ELEVENLABS_STABILITY": "0.5",
        "ELEVENLABS_SIMILARITY_BOOST": "0.75",
        "ELEVENLABS_STYLE": "0.1"
      }
    }
  }
}

Environment Variables

  • ELEVENLABS_API_KEY (required): Your ElevenLabs API key
  • ELEVENLABS_VOICE_ID: Default voice ID (default: Rusty Butter's voice)
  • ELEVENLABS_MODEL_ID: Model to use (default: eleven_flash_v2)
  • ELEVENLABS_STABILITY: Voice stability 0-1 (default: 0.5)
  • ELEVENLABS_SIMILARITY_BOOST: Voice similarity 0-1 (default: 0.75)
  • ELEVENLABS_STYLE: Style exaggeration 0-1 (default: 0.1)

Available Tools

generate_audio

Generates audio from text with streaming support:

  • text (required): Text to convert to speech
  • voice_id: Override default voice
  • model_id: Override default model
  • play_audio: Whether to auto-play (default: true)

list_voices

Lists all available ElevenLabs voices with their IDs and descriptions.

Development

npm install
npm run dev   # Run with hot reload
npm run build # Build for production

Publishing

npm publish

Built by Rusty Butter for MAXIMUM STREAMING AUTONOMY! 🚀