AllVoiceLab MCP server for AI agents

The AllVoiceLab MCP server allows you to integrate powerful text-to-speech and video translation capabilities into MCP clients like Claude Desktop, Cursor, and Windsurf. This server enables speech generation, video translation, voice conversion, and more through a simple interface.

Installation

Prerequisites

Get your API key from AllVoiceLab

Install uv (Python package manager):

curl -LsSf https://astral.sh/uv/install.sh | sh

Important Regional Configuration

The server address must match the region of your API key:

Region	API Key Source	API Domain
Global	AllVoiceLab Global	https://api.allvoicelab.com
Mainland	AllVoiceLab China	https://api.allvoicelab.cn

Configuring MCP Clients

Claude Desktop

Go to Claude > Settings > Developer > Edit Config
Add this to claude_desktop_config.json:

{
  "mcpServers": {
    "AllVoiceLab": {
      "command": "uvx",
      "args": ["allvoicelab-mcp"],
      "env": {
        "ALLVOICELAB_API_KEY": "<insert-your-api-key-here>",
        "ALLVOICELAB_API_DOMAIN": "<insert-api-domain-here>",
        "ALLVOICELAB_BASE_PATH":"optional, default is user home directory"
      }
    }
  }
}

Note for Windows users: Enable "Developer Mode" in Claude Desktop by clicking "Help" in the top-left menu and selecting "Enable Developer Mode".

Cursor

Go to Cursor → Preferences → Cursor Settings → MCP
Add new global MCP Server with the same configuration shown above

Features and Usage

Available Methods

Method	Description
text_to_speech	Convert text to speech
speech_to_speech	Convert audio to another voice while preserving content
isolate_human_voice	Extract clean human voice by removing background noise
clone_voice	Create a custom voice profile from an audio sample
remove_subtitle	Remove hardcoded subtitles from videos
video_translation_dubbing	Translate and dub video speech into different languages
text_translation	Translate text files into other languages
subtitle_extraction	Extract subtitles from videos using OCR

Usage Examples

Text to Speech

Ask your MCP client: "Convert 'At All Voice Lab, we're reshaping the future of audio workflows with AI-powered solutions, making authentic voices accessible to creators everywhere.' into voice."

Voice Conversion

After generating audio from text-to-speech, select the audio file and ask: "Convert this to a male voice."

Remove Background Noise

Select an audio file with mixed sounds and ask: "Remove the background noise."

Voice Cloning

Select an audio file with a single voice and ask: "Clone this voice."

Video Translation

Select a video file and ask: "Translate this video to Japanese."

Remove Subtitles

Select a video with subtitles and ask: "Remove the subtitles from this video."

Text Translation

Select a long text and ask: "Translate this text to Japanese." (If no language is specified, it will translate to English by default)

Subtitle Extraction

Select a video with subtitles and ask: "Extract the subtitles from this video."

Troubleshooting

Logs can be found at:

Windows: C:\Users<Username>.mcp\allvoicelab_mcp.log
macOS: ~/.mcp/allvoicelab_mcp.log

For assistance, contact [email protected] with your log files.

How to install this MCP server

For Claude Code

To add this MCP server to Claude Code, run this command in your terminal:

claude mcp add-json "AllVoiceLab" '{"command":"uvx","args":["allvoicelab-mcp"],"env":{"ALLVOICELAB_API_KEY":"<insert-your-api-key-here>","ALLVOICELAB_API_DOMAIN":"<insert-api-domain-here>","ALLVOICELAB_BASE_PATH":"optional, default is user home directory.This is uesd to store the output files."}}'

See the official Claude Code MCP documentation for more details.

For Cursor

There are two ways to add an MCP server to Cursor. The most common way is to add the server globally in the ~/.cursor/mcp.json file so that it is available in all of your projects.

If you only need the server in a single project, you can add it to the project instead by creating or adding it to the .cursor/mcp.json file.

Adding an MCP server to Cursor globally

To add a global MCP server go to Cursor Settings > Tools & Integrations and click "New MCP Server".

When you click that button the ~/.cursor/mcp.json file will be opened and you can add your server like this:

{
    "mcpServers": {
        "AllVoiceLab": {
            "command": "uvx",
            "args": [
                "allvoicelab-mcp"
            ],
            "env": {
                "ALLVOICELAB_API_KEY": "<insert-your-api-key-here>",
                "ALLVOICELAB_API_DOMAIN": "<insert-api-domain-here>",
                "ALLVOICELAB_BASE_PATH": "optional, default is user home directory.This is uesd to store the output files."
            }
        }
    }
}

Adding an MCP server to a project

To add an MCP server to a project you can create a new .cursor/mcp.json file or add it to the existing one. This will look exactly the same as the global MCP server example above.

How to use the MCP server

Once the server is installed, you might need to head back to Settings > MCP and click the refresh button.

The Cursor agent will then be able to see the available tools the added MCP server has available and will call them when it needs to.

You can also explicitly ask the agent to use the tool by mentioning the tool name and describing what the function does.

For Claude Desktop

To add this MCP server to Claude Desktop:

1. Find your configuration file:

macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
Windows: %APPDATA%\Claude\claude_desktop_config.json
Linux: ~/.config/Claude/claude_desktop_config.json

2. Add this to your configuration file:

{
    "mcpServers": {
        "AllVoiceLab": {
            "command": "uvx",
            "args": [
                "allvoicelab-mcp"
            ],
            "env": {
                "ALLVOICELAB_API_KEY": "<insert-your-api-key-here>",
                "ALLVOICELAB_API_DOMAIN": "<insert-api-domain-here>",
                "ALLVOICELAB_BASE_PATH": "optional, default is user home directory.This is uesd to store the output files."
            }
        }
    }
}

3. Restart Claude Desktop for the changes to take effect