---
updatedAt: 2026-10-13T12:28:02.000Z
agentTools:
projectIndex: https://docs.trustfull.com/llms.txt
---
# Billing
The **Billing** page is where you manage your Trustfull balance and payment settings. To access it, click your name in the top-right corner of the dashboard and select **Billing** from the menu.
There are two ways to add funds to your balance: a one-off **Manual Top Up**, and **Auto Top Up**, which recharges your balance automatically when it drops below a threshold you set.
## Manual Top Up
To add funds manually, choose a preset amount (€500, €1000, €2500, or €5000) from the **Top Up Balance** section and click **Add Funds**. You will be redirected to Stripe to complete the payment. Once confirmed, your balance updates immediately while the transaction may take a few minutes to appear in the Payment History.
All payments are processed and managed by Stripe. VAT is applied automatically based on your billing country.
## Auto Top Up
**Auto Top Up** automatically recharges your balance whenever it drops below a threshold you define — so your API keys stay funded and requests are never interrupted. Each time the rule triggers, Trustfull charges your saved card and adds the configured amount to your balance.
### Prerequisites
Before you can activate Auto Top Up, you need to:
* Complete at least one manual top-up
* Add at least one valid credit card in the **Payment Methods** section — click **Manage** to add, update, or remove cards via Stripe. You can save more than one.
Until both conditions are met, the **Configure** button is disabled and the toggle is inactive.
### Configure Auto Top Up
To set up Auto Top Up, click **Configure** (or the toggle). This opens the configuration modal where you define the rules that control when and how much to charge.
* **When balance falls below**: the threshold that triggers the top-up (e.g. €500)
* **Top up amount**: the amount added each time the rule triggers (minimum €500)
* **Monthly top-up limit**: the maximum total charged in a calendar month across all automatic top-ups. Once reached, Auto Top Up pauses until the next month. Manual top-ups also count toward this limit.
* **Payment method**: the card to charge for automatic top-ups
Click **Save & Enable** to activate. The Auto Top Up section will then show a summary of your configuration.
If you remove the card assigned to Auto Top Up, the feature disables automatically and shows the message: "The configured card is no longer available. Please update your payment method." Open **Configure** to assign a new card and re-enable.
## Payment History
To see everything you have paid, open the **Billing** page and scroll to the **Payment History** table at the bottom. It lists every payment, manual and automatic, with the payment date, the valid from and expiration dates, the amount, and the source.
**Invoices are issued on request**: open a ticket and the billing team sends it to you. The quickest way to open a ticket is the **Ask AI** button in the dashboard header, which starts a chat with the Trustfull assistant and can raise the request for you.
If you are using Trustfull at large volumes, contact us to discuss custom billing arrangements.
## FAQ
**How do I get an invoice?**
Invoices are issued on request. Open a ticket and the billing team sends it to you. The quickest way is the **Ask AI** button in the dashboard header: it opens the Trustfull assistant, which can raise the ticket for you.
**Do credits expire?**
Credits have a **standard validity of 12 months** from the date of purchase and can be used to query any Trustfull API. If your contract specifies different terms, those apply.
**What happens when an API key runs out of credit?**
The API returns **HTTP 402**. Add funds from this page, or enable **Auto Top Up** so requests are never interrupted. See [HTTP Status codes](https://docs.trustfull.com/docs/http-status-codes) for the full list.
**Can my balance recharge automatically when it runs low?**
Yes — see [Auto Top Up](#auto-top-up) above. It requires one completed manual top-up and at least one saved card.
**Where do I see what I have spent?**
Every manual and automatic payment appears in the **Payment History** table on this page, with payment date, validity dates, amount and source. Individual receipts can be downloaded from the table.