# Hermes Model Switcher: Hermes Agent plugin

> Choose models across Hermes profiles from a Dashboard tab: a per-profile picker built on host-supplied model data (SDK-authenticated GET /api/model/options), a preview of provider/model intent across every supported…

Canonical: https://hermeswatcher.com/plugins/hermes-model-switcher  
Tier: Community  
Official page (Nous Research): https://hermes-agent.nousresearch.com/docs/plugins/hermes-model-switcher  
Last updated in catalog: 2026-10-23

Choose models across Hermes profiles from a Dashboard tab: a per-profile picker built on host-supplied model data (SDK-authenticated GET /api/model/options), a preview of provider/model intent across every supported model-selection slot (main, delegation, auxiliary, judge, fallback, MoA, cron, plugin and specialist), and one-click apply or revert with presets. Main-slot preview shows intended provider/model, not the exact persisted diff; the exact diff is shown only after host readback.

## Good to know before installing

Its apply route reads and edits the profiles' config.yaml (that is the plugin's function) through public seams only: POST /api/model/set for main and compatible auxiliary slots, and public hermes_cli.config load/save under the target home for other slots; credential presence checks use public profile-scoped secret helpers (agent.secret_scope), and profile discovery uses public hermes_constants. The plugin makes no direct third-party requests and opens no provider caches or pricing registries directly, but its browser tab does call the host's /api/model/* routes through the Dashboard SDK, and the host options route may itself initiate provider or pricing I/O even without an explicit refresh request, so reads are not guaranteed cache-only. It runs no shell commands or background processes and reports nothing. The private undo journal stores a full pre-change snapshot of each config it edits, which can contain sensitive fields including embedded credentials. Saved presets also persist reviewed change values, potentially including inline credentials or credential-bearing base URLs, in presets.json (0600) under get_hermes_home()/state/hermes-model-switcher/ (0700). The host write route

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 hermes-model-switcher
```

2. Said no? Turn it on later:

```bash
hermes plugins enable hermes-model-switcher
```

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: Automation & multi-agent, AI models & providers
- Maintained by: Nico Estrem (Community)
- Needs: No API keys declared
- Requires Hermes: `>=0.22.3`
- Version: 0.3.2
- In the catalog since: 2026-10-23

## Links

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

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