List endpoints (GET /checkout_sessions, GET /escrows, GET /events, …) return results newest first, a page at a time.
Keep requesting with cursor=<next_cursor> until has_more is false. Cursors are opaque: don’t build or change them.

Filtering

Lists you create resources in also filter by your reference, which is the quickest way to find one:

With a library

Await a list for one page, or iterate it to walk every page: