---
title: "How to use Mixroadie with Claude or ChatGPT"
description: "Connect Mixroadie to Claude Desktop, Claude Code or Codex and ask about your mix there. Setup takes one prompt."
url: "https://mixroadie.com/blog/mixroadie-with-claude-and-chatgpt/"
published: "2026-10-08T00:00:00.000Z"
---

# How to use Mixroadie with Claude or ChatGPT

Connect Mixroadie to Claude Desktop, Claude Code or Codex and ask about your mix there. Setup takes one prompt.

GUIDE 8 October 2026 5 min read

Updated 21 October 2026

Mixroadie’s panel can’t sign in with a Claude or ChatGPT subscription. Claude Desktop, Claude Code and Codex (in the ChatGPT desktop app) can use Mixroadie, though, and they run on your plan. Your AI app makes the decisions, so you don’t need an AI model in Mixroadie or the panel open.

Other AI apps that can run a local MCP server work too, such as Google’s Gemini CLI, GitHub Copilot in VS Code and Cursor. They’re set up by hand, see [other apps](https://mixroadie.com/blog/mixroadie-with-claude-and-chatgpt/#other-apps).

## Quick setup

You need Mixroadie installed and Claude Code (terminal or the Code tab in the Claude desktop app) or Codex (ChatGPT desktop app).

1. Start a new session.
2. Send this:

```
Connect Mixroadie for me. Follow the instructions at https://mixroadie.com/connect.md
```

3. Approve the commands it asks to run. If your app blocks them, it shows you one command to run yourself instead.
4. Restart the app you want to use (quit Claude Desktop and open it again, or start a new Claude Code or Codex session) and restart REAPER.

This also connects Claude Desktop if it’s installed. [The instructions](https://mixroadie.com/connect.md) are plain text if you want to read them first.

<!-- SCREENSHOT 1: Claude Code (or the Code tab in Claude Desktop) after "Connect Mixroadie for me…", showing it running roadie connect and the ✓ lines per app. File: src/assets/blog/mcp/agent-setup.png -->

The Claude Desktop chat can’t run commands. If that’s all you use, follow the [manual setup](https://mixroadie.com/blog/mixroadie-with-claude-and-chatgpt/#manual-setup).

## Use it

Open the song in REAPER and ask your AI app, with the song’s full path:

- “Run a health check on /Users/you/Music/Song/Song.rpp”
- “Mix this song for me”
- “Is the master loud enough for streaming?”
- “Measure the WAV files in /Users/you/Music/Bounces” (no project needed)

<!-- SCREENSHOT 2: Claude Desktop, a chat where the user asked "Run a health check on …/Song.rpp" and Claude answers with the per-track findings; the Mixroadie tool call visible. File: src/assets/blog/mcp/claude-health-check.png -->

Mixroadie measures the song and asks your AI app what it needs to know: which instrument each track is, how much to cut, how hard to compress. Your AI app answers in a few rounds, then shows you the plan as numbered moves. Tell it which ones to apply. Mixroadie backs up the project first.

If it gets a track wrong, say so (“track 7 is a bass, not a guitar”) and it corrects it.

<!-- SCREENSHOT 3: The chat showing a numbered plan and the user answering "apply 1, 2 and 5". File: src/assets/blog/mcp/chat-apply.png -->

It has the same checks and plans as the panel: health check, “mix this for me”, mastering, mix and reference checks, and the single tools. [Full list](https://mixroadie.com/mcp/).

## Privacy

Your AI app gets measurements, track names, file paths and plans, never audio, and sends them to Anthropic or OpenAI as part of your chat. Mixroadie itself sends nothing anywhere.

## Limits

- REAPER only.
- Same licence as the panel: the health check is free, plans need the trial (one song) or a licence.
- Named checks only. Free-text requests like “make the bass less boomy” work in the panel, not from the chat.
- A full mix takes a few rounds of questions, a minute or two.
- One request per song at a time.
- On a Mac, REAPER comes to the front while mastering and mix checks render.

Updates need nothing from you. Your AI apps use the new version on their next start.

## Manual setup

Only needed if you don’t use the quick setup.

### One command

From Mixroadie 0.1.3. Mac (Terminal):

```
~/.mixroadie/venv-audio/bin/roadie connect
```

Windows (PowerShell):

```
& "$env:USERPROFILE\.mixroadie\venv-audio\Scripts\roadie.exe" connect
```

It connects every one of Claude Desktop, Claude Code and Codex it finds and leaves their other settings alone. Restart the app afterwards.

### By hand

For older versions, or to set up one app yourself.

1. Install the MCP library. Mac:

```
~/.mixroadie/venv-audio/bin/python -m pip install "mcp>=1.2,<2"
```

Windows:

```
& "$env:USERPROFILE\.mixroadie\venv-audio\Scripts\python.exe" -m pip install "mcp>=1.2,<2"
```

2. Add Mixroadie to your app. Use the full path with your user name instead of `you`; apps don’t expand `~` in config files. On Windows the path is `C:\Users\you\.mixroadie\venv-audio\Scripts\roadie.exe`.

**Claude Desktop:** Settings › Developer › Edit Config. Add this to `claude_desktop_config.json` (next to any servers already there), then restart Claude Desktop. On Windows, double the backslashes.

```
{
  "mcpServers": {
    "mixroadie": {
      "command": "/Users/you/.mixroadie/venv-audio/bin/roadie",
      "args": ["mcp-server"]
    }
  }
}
```

<!-- SCREENSHOT 4: Claude Desktop Settings › Developer, showing "mixroadie" listed as a running local MCP server. File: src/assets/blog/mcp/claude-desktop-developer.png -->

**Claude Code:**

```
claude mcp add --scope user mixroadie -- ~/.mixroadie/venv-audio/bin/roadie mcp-server
```

**Codex / ChatGPT:** add this to `~/.codex/config.toml`. The timeout is needed for mastering; the default is 60 seconds.

```
[mcp_servers.mixroadie]
command = "/Users/you/.mixroadie/venv-audio/bin/roadie"
args = ["mcp-server"]
tool_timeout_sec = 600
```

### Other apps

Any app that can run a local MCP server works, on that app’s own plan. We’ve tested Claude and Codex; the others below should work the same way. Use the full path to `roadie` as above.

**Gemini CLI (Google):**

```
gemini mcp add -s user mixroadie /Users/you/.mixroadie/venv-audio/bin/roadie mcp-server
```

**GitHub Copilot in VS Code:** run “MCP: Open User Configuration” from the command palette and add:

```
{
  "servers": {
    "mixroadie": {
      "type": "stdio",
      "command": "/Users/you/.mixroadie/venv-audio/bin/roadie",
      "args": ["mcp-server"]
    }
  }
}
```

Use it from Copilot Chat in agent mode.

**Cursor:** add the same entry as for Claude Desktop to `~/.cursor/mcp.json`.

**Anything else:** add a local (stdio) server that runs `roadie` with the argument `mcp-server`.

Web chats (claude.ai, chatgpt.com, Gemini on the web) and the ChatGPT app’s normal chat can’t run a local server, so they can’t use Mixroadie.

## Troubleshooting

| Problem                           | Fix                                                                                                    |
| --------------------------------- | ------------------------------------------------------------------------------------------------------ |
| “The mcp package isn’t installed” | Run the quick setup or `roadie connect` again.                                                         |
| The app can’t start Mixroadie     | Wrong path in the config. Run `roadie connect` again.                                                  |
| “Is the Mixroadie panel open…?”   | Open the song in REAPER. If you haven’t restarted REAPER since setup, do that, or open the panel once. |
| Mastering gets cut off            | Raise the timeout: `tool_timeout_sec` in Codex, `MCP_TOOL_TIMEOUT` (milliseconds) in Claude Code.      |
