Page size
How many results one page of a list holds.
What it means
Many APIs let you choose the page size with a limit parameter. Others fix it, because the source it comes from fixes it.
How Onekey handles it
On Onekey the page size is fixed per endpoint and reported in pagination.page_size. It is not a parameter you can change. A full page reports has_more: true even when the source cannot say whether another page exists, so the next page can come back empty; that empty page is a normal answer and is billed like any other.