🎙️ voice-mcp

An MCP (Model Context Protocol) server for AI voice synthesis with an inline audio player. Give your AI assistant a custom cloned voice!

Features

• 🎤 Custom Voice Cloning — Use MiniMax TTS API with your own cloned voice

• 🎵 Inline Audio Player — Beautiful WeChat-style player with waveform visualization

• 📝 Transcript Toggle — Show/hide the spoken text

• 🌙 Dark Mode Support — Automatic theme adaptation

• ⚡ Cloudflare Workers — Fast, serverless deployment

Related MCP server: oto

Demo

When you call the speak tool, you get:

• A sleek audio player with play/pause button

• Animated waveform that follows playback progress

• Duration display

• Expandable transcript

Quick Start

1. Clone the repository

git clone https://github.com/garan0613/voice-mcp.git
cd voice-mcp

2. Install dependencies

npm install

3. Configure MiniMax API

You'll need a MiniMax account with voice cloning enabled.

Add your secrets to Cloudflare:

npx wrangler secret put MINIMAX_API_KEY
npx wrangler secret put VOICE_ID
npx wrangler secret put BOT_NAME  # Optional, defaults to "AI"

Current MiniMax T2A authentication uses the API key only. GroupId is no longer required.

4. Deploy

npx wrangler deploy

5. Connect to Claude.ai

1. Go to Settings → Connectors → Add Connector

2. Enter your Worker URL: https://your-worker.workers.dev/mcp

3. Done! The speak tool is now available.

Configuration

API Endpoints

How to Clone a Voice

1. Go to MiniMax Console

2. Navigate to Voice Cloning

3. Upload 10-30 seconds of clear audio

4. Wait for processing (usually a few minutes)

5. Copy the Voice ID

Custom Deployment

Using a Custom Domain

1. Add your domain to Cloudflare

2. Create a DNS record pointing to your Worker

3. Update wrangler.jsonc:

{
  "routes": [
    { "pattern": "voice.yourdomain.com/*", "zone_name": "yourdomain.com" }
  ]
}

Self-Hosting (Node.js)

The core MCP logic can be adapted for other platforms. You'll need to:

1. Replace createMcpHandler with a standard HTTP/SSE handler

2. Use @modelcontextprotocol/sdk directly

3. Handle the SSE transport yourself

Tech Stack

• Cloudflare Workers — Serverless runtime

• MCP SDK — Model Context Protocol

• MiniMax TTS — Voice synthesis

• ext-apps — Inline UI rendering

License

MIT © 2026

Credits

Inspired by the need to give AI assistants a voice. Built with ❤️