> For the complete documentation index, see [llms.txt](https://docs.codemash.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.codemash.io/norbix-cloud/usage-billing.md).

# Usage & Billing

The **Usage** page shows what your account is being billed, month by month.

### What you see

* **Billing periods** — one entry per month, newest first, with the total for each period.
* **Database usage** — the real infrastructure cost of your managed database clusters (MongoDB Atlas), allocated to your account and shown in USD.

### How billing works

Your invoice has two kinds of lines:

1. **Subscription** — your plan and per-project tier, billed monthly as usual.
2. **Metered usage** — usage-based costs, such as database infrastructure. Once per month, Norbix reads the previous month's usage, allocates the cost of each cluster to the account that owns it, and adds it to your **existing monthly invoice** automatically. There is no separate bill to track.

Over time, more metered streams (for example AI token overage) will appear on the same page, using the same mechanism.

{% hint style="info" %}
Self-hosted installations run on your own infrastructure, so there are no metered database lines — you pay your cloud provider directly.
{% endhint %}

### Related

* Pricing and plans: [norbix.ai/pricing](https://norbix.ai/pricing)
* [Project](/norbix-cloud/project.md) — project tiers and environments