# Browserless: Hermes Agent plugin

> Run Hermes' built-in browser tools on Browserless cloud browsers: stealth mode, residential proxies, captcha solving and ad blocking, with no local Chrome.

Canonical: https://hermeswatcher.com/plugins/browserless  
Tier: Community  
Official page (Nous Research): https://hermes-agent.nousresearch.com/docs/plugins/browserless  
Last updated in catalog: 2026-10-20

Run Hermes' built-in browser tools on Browserless cloud browsers: stealth mode, residential proxies, captcha solving and ad blocking, with no local Chrome. One Browserless browser per task; Hermes' agent-browser daemon and CDP supervisor share it through a local CDP multiplexer, and the browser is reconnected after network drops and closed when the task ends.

## Good to know before installing

While a browser task runs, starts a background thread with a WebSocket listener on 127.0.0.1 (random port, secret path, local Host header only); connects to Browserless (production-*.browserless.io) with BROWSERLESS_TOKEN, read via get_secret; Browserless usage is metered on your plan, and residential proxy traffic costs more; connections to Browserless carry a browserless-hermes-plugin/<version> User-Agent so Browserless can count plugin usage (opt-out: BROWSERLESS_SOURCE_TAG=false; the browser's own user agent is unchanged); no files written unless BROWSERLESS_MUX_LOG is set; no other telemetry.

From the plugin's catalog listing.

## How to install

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

```bash
hermes plugins install browserless
```

2. Said no? Turn it on later:

```bash
hermes plugins enable browserless
```

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: Web, research & browsing
- Maintained by: browserless (Community)
- Needs: `BROWSERLESS_TOKEN` (API key)
- Requires Hermes: `>=0.21.6`
- Version: 0.1.2
- In the catalog since: 2026-10-16, updated 2026-10-20

## Links

- [Full setup and settings (official page)](https://hermes-agent.nousresearch.com/docs/plugins/browserless)
- [Source code](https://github.com/browserless/browserless-mcp/tree/600a5d689fa3f5bdcb5676ffc063b56d18e9bd7c/hermes)
- [All plugins](https://hermeswatcher.com/plugins.md)

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