Do you use authorization header?
I guess you need a token with the scope board:play in order to be able to get the chat from the game you played.
Maybe if you don't use authorization header, only the chat for other players is shown - i.e "spectator chat". 🤔
#Fetch my private chat from all played games
mortal kite
mortal kite
Yup yup.
It is only you and your opponent who are able to fetch the private chat,
and to prove that it is you or your opponent - you need to use the authorization header.
mortal kite
Oh interesting error!
The "Fetch Chat" operation resides in Bot and Board sections,
and happen to be limited by those rules then...
(It is not allowed to play "too fast" game controls via the API)
Had it been in "Games" section, the error would probably not have been there...
So maybe you could open an issue on GitHub and ask if the rules could be removed for that/those endpoints 🤔