Note that use of site events page is strongly discouraged though.

I'm not sure what you mean by achievements, but if you want to see where all your honor came from (which includes achievements), you can go to https://www.codewars.com/users/YOUR_USERNAME/site-events. Replace YOUR_USERNAME with your actual username.

Documentation is still work in progress, but you can find some details here: https://docs.codewars.com/references/gamification/honor/

Did you find an answer to this? I was looking too and having no luck.