I have a list of PMIDs and I want to write a simple scraper script that finds the URL of the corresponding pdf paper and downloads it. As far as I can see a direct url to the pdf file is not exposed in the pubmed api.

There is this service called thepaperlink, which does exactly what I want, but I don't want do build my scripts around a third party database. they claim that their service is build around eutils, but i don't see this is possible.