> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.scrapingbee.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Unable to purchase one-time add-on

![](https://storage.crisp.chat/users/helpdesk/website/66a2759f2b092c00/screenshot-2023-12-07-at-84518_1w5l5c8.png)

Our one-time add-ons are designed for users who have an active subscription plan. Let's say, you are in our 'Freelance' plan, you will get 250,000 credits. If the credit runs out, you need to wait until next month to get credits. To solve this issue, we created the one-time add-on packages.

Even though it is not available in the trial plan, if you only need to use ScrapingBee for one time, then we would suggest you to subscribe to our 'Freelance' plan and then cancel the subscription. Your remaining API credits will be usable until the end of your current subscription term.