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# Cartesia MCP Server
The Cartesia MCP server provides a way for clients such as Cursor, Claude Desktop, and OpenAI agents to interact with Cartesia's API. Users can localize speech, convert text to audio, infill voice clips etc.
## Cartesia Setup
Ensure that you have created an account on [Cartesia](https://play.cartesia.ai/sign-in), there is a free tier with 20,000 credits per month. Once in the Cartesia playground, create an API key under API Keys --> New.
## Installation
```sh
pip install cartesia-mcp
which cartesia-mcp # absolute path to executable
```
## Claude Desktop Integration
Add the following to `claude_desktop_config.json` which can be found through Settings --> Developer --> Edit Config.
```
{
"mcpServers": {
"cartesia-mcp": {
"command": "<absolute-path-to-executable>",
"env": {
"CARTESIA_API_KEY": "<insert-your-api-key-here>",
"OUTPUT_DIRECTORY": // directory to store generated files (optional)
}
}
}
}
```
Try asking Claude to
- List all available Cartesia voices
- To convert a text phrase into audio using a particular voice
- To localize an existing voice into a different language
- To infill audio between two existing audio segments (specify absolute paths to audio files)
- To change an audio file to use a different voice
## Cursor Integration
Create either a `.cursor/mcp.json` in your project or a global `~/.cursor/mcp.json`. The same config as for Claude can be used.
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