# Token Cost Meter: Hermes Agent plugin

> Live token usage, model-aware USD cost and prompt-cache savings in the Hermes Desktop status bar, with a persistent per-day ledger that survives restarts.

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

Live token usage, model-aware USD cost and prompt-cache savings in the Hermes Desktop status bar, with a persistent per-day ledger that survives restarts.

## Good to know before installing

Desktop only; no network calls of its own (prices come from the gateway's model.options and a bundled models.dev rate table); stores per-day token totals, per-session counters and last-known rates in its own Desktop plugin storage; costs are list-price estimates, not billing data.

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 token-cost-meter
```

2. Said no? Turn it on later:

```bash
hermes plugins enable token-cost-meter
```

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: Cost, speed & monitoring, Hermes Desktop add-ons
- Maintained by: IT-dreamer (Community)
- Needs: No API keys declared
- Requires Hermes: `>=0.21.6`
- Version: 1.0.0
- In the catalog since: 2026-10-10

## Links

- [Full setup and settings (official page)](https://hermes-agent.nousresearch.com/docs/plugins/token-cost-meter)
- [Source code](https://github.com/IT-dreamer/token-cost-meter#readme)
- [All plugins](https://hermeswatcher.com/plugins.md)

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