I’m not too good at reading code but judging from the code in this link on github i believe it may be searchable?
https://github.com/SiCKRAGETV/SickRage/blob/master/sickbeard/providers/torrentday.py
Can’t find much regarding an api on their website seems like they just have an rss you generate and then have to filter for the TV show you want within utorrent using the ‘RSS Downloader’ function.
What do you think about that code in github though?