# Billing

> Change your plan, track and top up Navi credits, check monitoring limits, and manage invoices, currency, and the card Serpier charges.

Source: https://docs.serpier.com/billing

Billing covers two things: your subscription plan, which sets your monitoring limits and the [Navi](https://docs.serpier.com/navi) credits you get each month, and the invoices for what you buy, including [orders](https://docs.serpier.com/orders) waiting for payment. It is the **Billing** tab of [Settings](https://docs.serpier.com/account-settings). Only organization owners and admins can change it.

![The Billing tab with currency, invoice email, billing portal, and Navi credits](https://docs.serpier.com/docs-assets/billing-overview.webp "Billing details at the top, then your plan and Navi credits.")

## Set your currency and invoice details

The **Billing** card holds what goes on your invoices.

- **Currency**: **DKK**, **EUR**, **USD**, or **GBP**. Confirm the switch and it applies to future purchases straight away. An existing subscription keeps its currency until you cancel it and start a new one.
- **Invoice email**: where invoices are sent. Select **Update** to change it. The field unlocks once billing details exist.
- **Billing portal**: **Open billing portal** to update your card and download invoices.

## Choose or change your plan

The plans are **Free**, **Starter**, **Growth**, and **Enterprise**. Each one sets how many Navi credits you get per month and how much you can monitor.

1. On **Subscription**, select **Upgrade plan** (on Free) or **Change plan**.
2. Compare the plans in **Change your plan** and pick one. A paid plan you are not on yet opens checkout.

Upgrades apply immediately. Downgrades take effect at the next billing period.

![The Change your plan dialog comparing Free, Starter, Growth, and Enterprise](https://docs.serpier.com/docs-assets/billing-change-plan.webp "Prices and limits per plan. Your current plan is marked.")

**Enterprise** has custom pricing; select **Talk to us**. It is the plan that includes API access for the [REST API](https://docs.serpier.com/rest-api) and personal access tokens. If you are already on Enterprise, plan changes go through support.

## Cancel, or fix a failed payment

**Cancel subscription** asks you to confirm. Your plan stays active until the end of the current period, and **Keep subscription** undoes the cancellation until then.

If a payment fails, the card says **We couldn't process your payment**, or **Your subscription is paused** once the subscription is unpaid. Select **Update payment method** to fix the card in the billing portal.

## Navi credits

Navi credits pay for work Navi does for you, such as chat, [automations](https://docs.serpier.com/automations), [AI visibility](https://docs.serpier.com/ai-visibility) runs, and [SEO Performance](https://docs.serpier.com/seo-performance) rank checks. You have two balances:

- **Plan credits**: included in your plan. On a paid plan they reset on the date shown. Free plan credits do not reset automatically.
- **Top-up credits remaining**: credits bought on top of your plan.

If you run out, scheduled AI visibility runs and SEO Performance rank checks pause until you top up.

**Credit activity** below the subscription lists recent **Top up**, **Usage**, **Included**, and **Adjustment** entries, with the **Source** that used the credits and who spent them. Included usage is logged for transparency and does not reduce your balance.

## Turn on auto top-up

On a paid plan, auto top-up buys credits for you when your balance runs low.

1. Turn on **Auto top-up** under **Navi credits**.
2. Set **Top up when balance drops below** (1 to 100,000 credits).
3. Choose the **Amount per top-up**.
4. Select **Save auto top-up settings**.

If no card is saved, saving opens a checkout that stores one. Nothing is charged until the balance drops below the threshold.

> If a top-up charge fails, auto top-up pauses. Update your payment method, then save the settings again to turn it back on.

## Check your monitoring limits

**Monitoring** on the subscription card shows these against your plan's limits:

- **Monitored projects**: [projects](https://docs.serpier.com/projects) you monitor in SEO Performance, AI visibility, or the [Publication Tracker](https://docs.serpier.com/publication-tracker). A project counts once.
- **Monitored links**: the links in the Publication Tracker.
- **Tracked prompts**: the prompts you track in AI visibility.

Your plan also caps the keywords you track in SEO Performance. The card does not show that limit; SEO Performance setup does. Change plan to raise any of them.

## Enterprise billing links

If Serpier sends you an Enterprise billing link, opening it takes you to Stripe to confirm your Enterprise plan. If the link is invalid, the page shows the error instead.

## Related

- [Settings](https://docs.serpier.com/account-settings.md)
- [Navi](https://docs.serpier.com/navi.md)
- [AI Visibility](https://docs.serpier.com/ai-visibility.md)
- [SEO Performance](https://docs.serpier.com/seo-performance.md)