There are a number of fitness/health variables people would love to track (sleep, calories, water, weight, heart rate, naps, etc), on a variety of services (Google fit, Fitbit, Samsung health, run keeper, etc etc). Rather than try to integrate every single service and variable, please consider integration with FitnessSyncer (https://www.fitnesssyncer.com). This would allow anyone using any of their supported apps for any of their tracked items.

I have already created several dashboards in their service for things I would love to track, and would love to be able to simply send that data to Beeminder.