ElevenLabs Streaming MCP Server

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: ``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! 🚀