I try to get access to the reputation changes for all sites to program an Add-on, that displays them.

The achievement notification list at the top shows the last reputation changes in a list, but how can I get this list separately? 

Is there a secret link?

The link to global reputation changes only shows a chart:
<https://stackexchange.com/users/1047481/rubo77?tab=reputation>

In case, there is no such list how is the achievement list generated?