Gemini TTS

Give Claude Code a voice. Rust MCP server that calls Gemini TTS and plays audio locally.

Install

git clone https://github.com/balheru/mcp-speak.git
cd mcp-speak
GEMINI_API_KEY="your-key" cargo build --release

Get a key at aistudio.google.com/apikey. Requires macOS and Rust.

Configure

Add to ~/.claude.json:

{
  "mcpServers": {
    "speak": {
      "command": "/path/to/mcp-speak/target/release/mcp-speak"
    }
  }
}

Usage

The server exposes a single speak tool:

Parameter	Type	Required	Description
text	string	yes	The text to speak aloud
style	string	no	Speech style/emotion (e.g. "excited", "calm and reassuring")

Details

• Voice: Kore
• Model: gemini-2.5-pro-preview-tts
• Audio: 24kHz mono 16-bit PCM
• Protocol: MCP over stdio

License

MIT