Voiceroid Daemon MCP Server

MCP server for VOICEROID2 text-to-speech via voiceroid_daemon

Local serverstdio

What is the Voiceroid Daemon MCP MCP server?

MCP server for VOICEROID2 text-to-speech via voiceroid_daemon. The voiceroid daemon mcp mcp server wraps that behind the Model Context Protocol, so an assistant can use it through 3 defined tools rather than through you.

What it actually does

MCP (Model Context Protocol) server for VOICEROID2 text-to-speech via voiceroid_daemon.

  • Text-to-speech generation with VOICEROID2 voices
  • Text-to-kana phonetic conversion
  • Customizable voice parameters (volume, speed, pitch, emphasis)
  • Audio playback support for macOS, Windows, and Linux
  • Basic authentication support

Its toolset

Everything the assistant can do here goes through one of these:

  • test_connection — The test_connection tool exposed by this server
  • convert_text — The convert_text tool exposed by this server
  • speak_text — Parameters: - text (string, required): Text to speak - kana (string, optional): Phonetic reading in kana - volume (number, optional): Voice volume

Adding it to your client

Setup follows the usual MCP pattern — install or clone the server, register it in your client's configuration file, restart the client. The configuration blocks on this page cover the common clients.

Configuration

You will need one environment variable: VOICEROID_DAEMON_URL. The server will not start without them, which is usually why the tools fail to appear on a first run. Keep credentials in your client's env block or a secrets manager rather than in a file you might commit.

  • Node.js 18 or higher - voiceroid_daemon running on your system - VOICEROID2 installed (for voiceroid_daemon)

When to reach for it

This sits in the AI and media services group, where several servers overlap in what they claim to do but differ sharply once you actually set them up. Voiceroid Daemon MCP's toolset — test_connection, convert_text, speak_text — is a fair guide to whether it matches your workflow. It is maintained by mohemohe; worth a glance at recent repository activity before you build anything load-bearing on it.

We check each listing at SyncDev against the project's documentation before it goes live — if something here drifts out of date, it is a bug worth reporting.

Caveats

  • It runs with your machine's permissions. That is convenient and also the reason to think about what you point it at before you approve a tool call.
  • Missing credentials fail quietly in some clients — if no tools show up, check the environment block first.
  • MCP clients confirm each tool call by default. Leave that on until you have watched what the voiceroid daemon mcp mcp server does with a few real requests.

Available tools

ToolWhat it does
test_connectionThe test_connection tool exposed by this server.
convert_textThe convert_text tool exposed by this server.
speak_textParameters: - text (string, required): Text to speak - kana (string, optional): Phonetic reading in kana - volume (number, optional): Voice volume (0-2, default: 1) - speed (number, optional): Speech speed (0.5-4, defaul

How to install the Voiceroid Daemon MCP MCP server

{
  "mcpServers": {
    "voiceroid-daemon": {
      "command": "npx",
      "args": ["tsx", "/path/to/voiceroid_daemon-mcp/src/index.ts"],
      "env": {
        "VOICEROID_DAEMON_URL": "http://127.0.0.1:8080"
      }
    }
  }
}

Configuration as documented by the project. Restart the client after saving.

Configuration

  • Node.js 18 or higher - voiceroid_daemon running on your system - VOICEROID2 installed (for voiceroid_daemon)
VariableDescriptionRequired
VOICEROID_DAEMON_URLEndpoint or connection string the server talks to.Yes

Example prompts to try

  • Use Voiceroid Daemon MCP to test connection.
  • Use Voiceroid Daemon MCP to convert text.
  • Use Voiceroid Daemon MCP to speak text.

Frequently asked questions

It connects Voiceroid Daemon MCP to MCP-compatible AI assistants such as Claude and Cursor, exposing 3 tools (test_connection, convert_text, speak_text) that the assistant can call on your behalf. Instead of copying data back and forth by hand, the assistant works with Voiceroid Daemon MCP directly.