# Memex8: Hermes Agent plugin

> Self-hosted vector memory (Qdrant + TurboQuant compression) with auto-discovered knowledge realms, semantic search across conversations and ingested documents, and a slumber pipeline for memory consolidation.

Canonical: https://hermeswatcher.com/plugins/memex8  
Tier: Community  
Official page (Nous Research): https://hermes-agent.nousresearch.com/docs/plugins/memex8  
Last updated in catalog: 2026-10-02

Self-hosted vector memory (Qdrant + TurboQuant compression) with auto-discovered knowledge realms, semantic search across conversations and ingested documents, and a slumber pipeline for memory consolidation. v1.1.0 adds optional per-session injection dedup with char-budget gate, decision/evaluation memory-type promotion (slower decay for load-bearing turns), prompt-injection sanitization on read, configurable system-prompt template, export/import memories as JSON, and a /memex8 slash command. New memory behaviours are opt-in; /memex8 export|import is confined to $HERMES_HOME/plugin-data/memex8 unless enable_export_import=true.

## Good to know before installing

Auto-stores a truncated copy (first 300 chars) of every user and assistant turn, plus per-message previews of the whole transcript at session end and before context compression, to the memex8 server at MEMEX8_BASE_URL (self-hosted; default http://localhost:8080) using MEMEX8_API_KEY.

From the plugin's catalog listing.

## How to install

1. Install it. Hermes asks for any API keys it needs (this one needs `MEMEX8_API_KEY`), then asks whether to turn it on.

```bash
hermes plugins install memex8
```

2. Said no? Turn it on later:

```bash
hermes plugins enable memex8
```

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: Ex8-ca (Community)
- Needs: `MEMEX8_API_KEY` (API key)
- Requires Hermes: `>=0.21.4`
- Version: 1.1.0
- In the catalog since: 2026-09-27, updated 2026-10-02

## Links

- [Full setup and settings (official page)](https://hermes-agent.nousresearch.com/docs/plugins/memex8)
- [Source code](https://github.com/Ex8-ca/memex8/blob/main/plugins/memex8/README.md)
- [All plugins](https://hermeswatcher.com/plugins.md)

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