# Eu Mode: Hermes Agent plugin

> EU Mode (beta): HaloGuard EU, Astroware's guard API hosted in the EU, checks each message and each reply (allow or block).

Canonical: https://hermeswatcher.com/plugins/eu-mode  
Tier: Community  
Official page (Nous Research): https://hermes-agent.nousresearch.com/docs/plugins/eu-mode  
Last updated in catalog: 2026-10-29

EU Mode (beta): HaloGuard EU, Astroware's guard API hosted in the EU, checks each message and each reply (allow or block). EU Mode looks for personal data in what users send and masks what it finds before the request reaches the model, then puts the originals back in the reply, on your machine.

## Good to know before installing

On every turn the conversation's user and assistant text (not system prompts, tool results, files or images) goes to api.astroware.ai (or the HALOGUARD_BASE_URL you set) with your own HaloGuard EU key, up to twice per turn (your message, then the reply); fail-open: if the API does not answer, the message goes on unchecked and not masked, and the reply says so; reads two Hermes settings (session titles, context compression) only to say when they are on; stores SHA-256 fingerprints of blocked messages, never their text.

From the plugin's catalog listing.

## How to install

1. Install it. Hermes asks for any API keys it needs (this one needs `HALOGUARD_API_KEY`), then asks whether to turn it on.

```bash
hermes plugins install eu-mode
```

2. Said no? Turn it on later:

```bash
hermes plugins enable eu-mode
```

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: Security & privacy, AI models & providers
- Maintained by: AstrowareAI (Community)
- Needs: `HALOGUARD_API_KEY` (API key)
- Requires Hermes: `>=0.20.0`
- Version: 0.1.1
- In the catalog since: 2026-10-29

## Links

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

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