How to get all participants list of a past webinar in a single api call?

I am getting only 30 records from a single api call. I want entire list to fetch in one go. I have gone through the entire documents but not able to find what I am trying to achieve.
Waiting for your reply.
Thank you

Thanks for reaching out to the Zoom Developer Forum, I am happy to help here!

Are you calling this endpoint? Zoom Meeting API

If so, you can modify the page_size in your query parameters. The default value is 30, that’s why you are only getting 30 records. I would suggest you to change it to 300 which is the max value so you get all the participants in one API call.