Well, the ideal API would have JS endpoints, since that's easiest to work with. I envisage a sort of client-side validation system, instead of a central server. Something like dat (https://dat.foundation). That would prevent cheating I guess. The idea is to not really aid discovery without having the current blog author endorse it. Either that or there might be a sort of voting system. What they want to read is something I would rather not work on. The discovery process should be for the site, not individual posts I guess. Talkyard is nice, I couldn't find Commento though..