Well, The cron syntax wouldn’t “disappear” unless your web front end translates the date/schedule to a Cron style system automatically.
Yes the idea should be possible, though I don’t know how best to help except to help provide basic syntax of the API so you can process and parse the data that’s returned.
I guess, though, I don’t fully understand the why. Everything (with exception of the scheduled cron tasks) is already available via the GUI we provide as a part of our software. “viewing said Scheduled tasks, view active tasks, and when a system is added to the host list that host will be added to the web page” are already done with the provided interface. Why create a new hen-house when the one you got with the land is also a hen house that does everything you need it to do.