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TextToSpeech-MCP Server

@SmartLittleApps

Repository

Basic information

Category

Other

License

MIT license

Transports

stdio

Author

SmartLittleApps

About TextToSpeech-MCP Server

Local text-to-speech MCP server with dual engines (macOS Say + Kokoro TTS) for Claude Desktop

#text-to-speech#local-tts#speech-synthesis

TextToSpeech-MCP Server config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "local-tts-mcp": {
      "command": "npx",
      "args": [
        "@modelcontextprotocol/inspector",
        "node",
        "dist/server.js"
      ]
    }
  }
}

TextToSpeech-MCP Server tools

Tool list not available yet

This listing does not currently have a tool list to display. This does not mean the server has no tools; check its documentation for supported capabilities.

Fetch the live tool list by running this server in a temporary sandbox using the button above.

Overview

What is TextToSpeech-MCP Server?

TextToSpeech-MCP Server is a local MCP (Model Context Protocol) server that provides privacy-first text-to-speech synthesis using macOS Say and Kokoro TTS engines. Designed for MCP-compatible clients like Claude Desktop, it keeps all processing on your machine.

How to use TextToSpeech-MCP Server?

Install dependencies with npm install, build with npm run build, and test with npm start. For Claude Desktop, add the provided JSON configuration to your settings. Use tools like synthesize_text, list_voices, health_check, and play_audio to convert text to speech, manage voices, and control playback.

Key features of TextToSpeech-MCP Server

  • All TTS synthesis happens locally – no data leaves your machine
  • Two engines: macOS Say (23 voices) and Kokoro TTS (21 voices)
  • Supports 43 languages including English, Spanish, French, Japanese, Chinese
  • Customizable output formats: aiff, wav, mp3, m4a
  • Adjustable speech speed (0.1–3.0) and quality (fast, balanced, high)

Use cases of TextToSpeech-MCP Server

  • Convert simple text to speech using the default voice
  • Select a specific voice by language, gender, or engine for natural output
  • Synthesize multilingual content, such as "Bonjour le monde" with a French voice

Frequently asked questions

1

What TTS engines does TextToSpeech-MCP Server support?

It supports macOS Say (23 voices, multiple languages) and Kokoro TTS (21 voices, 8 languages), with automatic engine selection.

2

What are the system requirements?

macOS (for the macOS Say engine), Node.js 18+, and TypeScript.

3

Is my data sent to external servers?

No. All text-to-speech synthesis happens locally; no data is sent to external services.

4

What is the maximum text length for synthesis?

The `text` parameter supports up to 50,000 characters.

5

How do I configure TextToSpeech-MCP Server for Claude Desktop?

Add the provided JSON configuration to your Claude Desktop settings, specifying the command `node ./dist/server.js` and the correct working directory.

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