make requests to the zendesk api with the company credentials

I'm trying to make requests to the Zendesk API in order to scrape the data of my company's Zendesk page, but my company credentials don't seem to work as valid credentials for the API. I'm following this guide: https://developer.zendesk.com/documentation/api-basics/working-with-data/getting-large-data-sets-with-the-zendesk-api-and-python/#make-the-basic-request.

What can I do?

Thanks in advance