# Extra usage

Part of [Plans and billing](https://support.bluedeer.ai/plans-and-billing.md).

- [What is extra usage?](https://support.bluedeer.ai/plans-and-billing/extra-usage/what-is-extra-usage.md): How extra usage keeps you going after your plan's daily or weekly usage runs out, what it costs and how long it lasts.
- [Add funds for extra usage](https://support.bluedeer.ai/plans-and-billing/extra-usage/add-funds.md): How to buy extra usage on the web, the amounts you can choose, paying with referral money, tax and receipts.
- [Auto top-up](https://support.bluedeer.ai/plans-and-billing/extra-usage/auto-top-up.md): Buy more extra usage by itself when the balance runs low, set its limits, and what happens when a payment doesn't go through.
- [Set a monthly cap on extra usage](https://support.bluedeer.ai/plans-and-billing/extra-usage/monthly-caps.md): Limit how much extra usage you spend each month, raise it when you need to, and let scheduled tasks use extra usage or not.