# Privacy Gateway: Hermes Agent plugin

> Local Presidio-based PII pseudonymization for Hermes model requests and tool results with an encrypted profile-scoped alias vault.

Canonical: https://hermeswatcher.com/plugins/privacy-gateway  
Tier: Community  
Official page (Nous Research): https://hermes-agent.nousresearch.com/docs/plugins/privacy-gateway  
Last updated in catalog: 2026-10-04

Local Presidio-based PII pseudonymization for Hermes model requests and tool results with an encrypted profile-scoped alias vault.

## Good to know before installing

PII detection runs locally with Presidio and the spaCy en_core_web_lg model, which you install manually; alias mappings are stored encrypted in the Hermes plugin DB under HERMES_PRIVACY_GATEWAY_KEY; requests are blocked when the engine cannot load; tools outside rehydrate_tool_allowlist receive alias tokens, not plaintext.

From the plugin's catalog listing.

## How to install

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

```bash
hermes plugins install privacy-gateway
```

2. Said no? Turn it on later:

```bash
hermes plugins enable privacy-gateway
```

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
- Maintained by: saiteja-madha (Community)
- Needs: `HERMES_PRIVACY_GATEWAY_KEY` (API key)
- Works on: linux
- Requires Hermes: `>=0.20.4`
- Version: 0.1.1
- In the catalog since: 2026-10-04

## Links

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

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