I am building a local web app with API that will handle some project management tasks, like creating projects, tracking them, sending notification about deadlines and so on. Now I am looking for some desktop time tracking app for Mac that has an open API that lets it send its data to my webapp in real time.
Are there ready-to-use solutions? If not, please advise where I can find some hints how to do it in the easier way because I don't want to reinvent the wheel if there is a ready solution.