just finally finished a quick write-up of a project I did a few months ago. It is an NodeMCU based physical interface to the free online time-tracking service by toggl.com
They provide a nice API to control basically everything on your account. I implemented some of the API commands to get the available projects and start/stop time tracking on them.
Check it out over at hackaday.io: https://hackaday.io/project/13236-togglcom-project-tracking-box
or on GitHub https://github.com/DedeHai/ESP-TogglBox