I noticed the post about working with Pinboard from JRHartleypool didn’t get any responses and is now closed. I, too, use Pinboard as my bookmarking service. In case the OP is still reading or others are searching here’s how I did it:
Up until now I’ve been using IFTTT to append to a text file on Dropbox every time I add a bookmark, formatted as markdown. It would be easy enough to just make those individual text files. The main problem I now have is that I shifted off of Dropbox to iCloud and would want some way for those text files to go directly into my Obsidian vault.
Pinboard does have an API. If there are any coders out there willing to write a plug-in for it, that would be wonderful, since I could cut out the Dropbox step. It’s beyond my coding skills to write one myself.