Rime MCP
[](https://www.rime.ai)
A Model Context Protocol (MCP) server that provides text-to-speech capabilities using the Rime API. This server downloads audio and plays it using the system's native audio player.
Features
- Exposes a `speak` tool that converts text to speech and plays it through system audio
- Uses Rime's high-quality voice synthesis API
Requirements
- Node.js 16.x or higher
- A working audio output device
- macOS: Uses `afplay`
There's sample code from Claude for the following that is not tested
- Windows: Built-in Media.SoundPlayer (PowerShell)
- Linux: mpg123, mplayer, aplay, or ffplay
MCP Configuration
All of the optional env vars are part of the tool definition and are prompts to
All voice options are [listed here](https://users.rime.ai/data/voices/all-v2.json).
You can get your API key from the [Rime Dashboard](https://rime.ai/dashboard/tokens).
The following environment variables can be used to customize the behavior:
- `RIME_GUIDANCE`: The main description of when and how to use the speak tool
- `RIME_WHO_TO_ADDRESS`: Who the speech should address (default: "user")
- `RIME_WHEN_TO_SPEAK`: When the tool should be used (default: "when asked to speak or when finishing a command")
- `RIME_VOICE`: The default voice to use (default: "cove")
Example use cases
[](https://www.youtube.com/watch?v=tYqTACgijxk)
Example 1: Coding agent announcements
Example 2: Learn how the kids talk these days
Example 3: Different languages based on context
Development
- Install dependencies:
- Build the server:
- Run in development mode with hot reload:
License
MIT