# Brethof Brain: Hermes Agent plugin

> brethof-brain long-term memory provider — the memory's briefing in the system prompt at session start, ambient recall on every turn, every turn archived.

Canonical: https://hermeswatcher.com/plugins/brethof-brain  
Tier: Community  
Official page (Nous Research): https://hermes-agent.nousresearch.com/docs/plugins/brethof-brain  
Last updated in catalog: 2026-10-05

brethof-brain long-term memory provider — the memory's briefing in the system prompt at session start, ambient recall on every turn, every turn archived; one memory shared with the user's other agents (Claude Code, Codex, OpenCode and more). Sends each turn to the user's own brethof-brain memory (on their machine at 127.0.0.1:8610, or hosted at memory.brethof.cloud). Needs a brethof-brain account.

## Good to know before installing

Sends every user prompt and each turn's user and assistant text, with your API key, to the brethof-brain server you configure (default a local box at 127.0.0.1:8610; hosted at memory.brethof.cloud), and puts the server's returned briefing and recall text into the system prompt and each turn; reads BRETHOF_BRAIN_* from $HERMES_HOME/.env and ~/.brethof-brain/config.json.

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 brethof-brain
```

2. Said no? Turn it on later:

```bash
hermes plugins enable brethof-brain
```

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: Memory & notes
- Maintained by: BrethofAI (Community)
- Needs: No API keys declared
- Requires Hermes: `>=0.21.0`
- Version: 1.0.0
- In the catalog since: 2026-10-05

## Links

- [Full setup and settings (official page)](https://hermes-agent.nousresearch.com/docs/plugins/brethof-brain)
- [Source code](https://brethof.ai/brain/docs/)
- [All plugins](https://hermeswatcher.com/plugins.md)

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