Garmin just gave every user their own personal API key! This is the official way into your Garmin data, no password sharing or unofficial workarounds, and it reaches your whole history.
I grabbed mine this morning and it went all the way back to 2021... 1,589 activities and 1,638 nights of sleep.
The prompt walks you through getting your key, asks you a few quick questions about what you're training for and the look you like, then builds you your own training dashboard. I ran into a couple of weird limits pulling mine so I baked the fixes right into the prompt lol
FYI: it's read only, so it can't push workouts to your watch.
Set yours up and let me know if you find anything cool hiding in your history! 🤓
Kevin