# Mixar: Hermes Agent plugin

> Mixar's own desktop MCP server over stdio, with a Mixar workflow skill: build and edit 3D scenes, generate models, textures, rigs and animation with AI, render, and export game-ready assets for Unity, Unreal and Godot.

Canonical: https://hermeswatcher.com/plugins/mixar  
Tier: Community  
Official page (Nous Research): https://hermes-agent.nousresearch.com/docs/plugins/mixar  
Last updated in catalog: 2026-10-25

Mixar's own desktop MCP server over stdio, with a Mixar workflow skill: build and edit 3D scenes, generate models, textures, rigs and animation with AI, render, and export game-ready assets for Unity, Unreal and Godot. Requires Mixar 4.2.1+ on macOS, Windows or Linux, signed in with Connect MCP turned on, on the same computer as Hermes.

## Good to know before installing

Runs the launcher the installed Mixar app writes at ~/.mixar/connector/mixar-mcp (%USERPROFILE%\.mixar\connector\mixar-mcp.cmd on Windows), which reads Mixar's own files under ~/.mixar/; tools execute arbitrary Python inside Mixar with your privileges; a tool call can start the installed Mixar app, which stays open after Hermes exits; calls go over loopback to Mixar, which forwards them to api.mixar.app under the signed-in account; generation prompts and reference images go to the AI provider running the chosen model; Mixar's backend keeps diagnostic records of MCP tool calls (inputs and results) and deletes them within 30 days; AI generation and create_layered_material spend Mixar credits, declared to Hermes as cost ranges with a 500-credit spend limit per chat; the plugin stores no credentials, ships no binaries, sends no telemetry and never updates itself; the optional MIXAR_MCP_LAUNCHER variable makes it run the program it names; at install Hermes looks for Mixar (macOS: Mixar.app in /Applications and ~/Applications; Windows: the installed-apps entry or %ProgramFiles%\Mixar; Linux: a mixar command on PATH or Mixar's launcher) and refuses the install when it is missing or, on ma

From the plugin's catalog listing.

## How to install

1. Install it. Hermes asks for any API keys it needs, then asks whether to turn it on.

```bash
hermes plugins install mixar
```

2. Said no? Turn it on later:

```bash
hermes plugins enable mixar
```

3. Restart Hermes so it loads the plugin.

Some plugins also need a sign-in or settings: see the official page. Memory plugins ask whether to become your memory provider instead. Steps follow the official plugins guide: https://hermes-agent.nousresearch.com/docs/user-guide/features/plugins

## Facts

- Category: Images, video, music & 3D
- Maintained by: Mixar-AI (Community)
- Needs: No API keys declared
- Works on: macos, windows, linux
- Requires Hermes: `>=0.22.3`
- Version: 0.2.0
- In the catalog since: 2026-10-25

## Links

- [Full setup and settings (official page)](https://hermes-agent.nousresearch.com/docs/plugins/mixar)
- [Source code](https://github.com/Mixar-AI/hermes-mixar#readme)
- [All plugins](https://hermeswatcher.com/plugins.md)

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HermesWatcher is an independent guide. It is not affiliated with or endorsed by Nous Research. The [official Hermes Agent documentation](https://hermes-agent.nousresearch.com/docs) and [repository](https://github.com/NousResearch/hermes-agent) from Nous Research are the authority; each page here lists the official sources it was written from. If this site and the official docs disagree, trust the official docs. Index for agents: https://hermeswatcher.com/llms.txt