I cannot accede to your request.

Is there to is correct or not?

AAAaannndd the bot gets it wrong yet again!

"accede" is almost always used with "to"
and then the bot repeats the original statement!

and what the heck does "Is there to is" even mean?

No, there is no need to include the word "to" in this sentence. The correct sentence is: "I cannot accede to your request."