VOICEVOX MCP Server for text-to-speech synthesis with Claude
Most AI and media services work still happens through a UI a human drives. Vv MCP MCP server moves it into the conversation instead. VOICEVOX MCP Server for text-to-speech synthesis with Claude.
VOICEVOX MCP Server - Claude DesktopとClaude Codeで音声合成を利用するためのMCPサーバー
The server publishes 14 tools. What each one is for:
macOS — afplayを使用（追加インストール不要）Linux — pw-play（PipeWire）または paplay（PulseAudio）が必要PipeWire — - Arch Linux: pacman -S pipewireFedora — dnf install pipewire-utilsPulseAudio — - Arch Linux: pacman -S pulseaudioWindows — PowerShellを使用（追加インストール不要）say — テキストを音声合成して再生（非同期実行）list_voices — 利用可能な音声一覧を取得get_queue_status — 再生キューの状態を確認clear_queue — 再生キューをクリアget_voices_in_use — 現在使用中の音声IDのリストを取得（全プロセス共通）get_random_unused_voice — 使用されていない音声をランダムに1つ取得Configuration is passed through the environment: VOICEVOX_URL, DEFAULT_VOICE_ID, DEFAULT_SPEED. Treat anything key-shaped as a real credential — scope it to the minimum the server needs, and rotate it if it ever lands in a shared config.
The server ships on npm as @arrow2nd/vv-mcp, so your MCP client can launch it on demand — there is no separate build step. Add the server block to your client's configuration, restart it, and the tools register themselves.
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. Vv MCP's toolset — macOS, Linux, PipeWire and 11 more — is a fair guide to whether it matches your workflow. It is maintained by arrow2nd; 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We check each listing at SyncDev against the project's documentation before it goes live — if something here drifts out of date, it is a bug worth reporting.
| Tool | What it does |
|---|---|
| macOS | afplayを使用（追加インストール不要） |
| Linux | pw-play（PipeWire）または paplay（PulseAudio）が必要 |
| PipeWire | - Arch Linux: pacman -S pipewire |
| Fedora | dnf install pipewire-utils |
| PulseAudio | - Arch Linux: pacman -S pulseaudio |
| Windows | PowerShellを使用（追加インストール不要） |
| say | テキストを音声合成して再生（非同期実行） |
| list_voices | 利用可能な音声一覧を取得 |
| get_queue_status | 再生キューの状態を確認 |
| clear_queue | 再生キューをクリア |
| get_voices_in_use | 現在使用中の音声IDのリストを取得（全プロセス共通） |
| get_random_unused_voice | 使用されていない音声をランダムに1つ取得 |
| get_session_voice | このセッションで使用する音声を取得（セッション毎に固定） |
| useSessionVoice | true - セッション音声を使用（voiceIdは無視される） |
{
"mcpServers": {
"vv-mcp": {
"command": "npx",
"args": ["-y", "@arrow2nd/vv-mcp"],
"env": {
"VOICEVOX_URL": "http://localhost:50021",
"DEFAULT_VOICE_ID": "47",
"DEFAULT_SPEED": "1.0"
}
}
}
}Configuration as documented by the project. Restart the client after saving.
| Variable | Description | Required |
|---|---|---|
| VOICEVOX_URL | Endpoint or connection string the server talks to. | Yes |
| DEFAULT_VOICE_ID | Configuration value read at startup. | Optional |
| DEFAULT_SPEED | Configuration value read at startup. | Optional |
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