Vim 8 user here. I also use auto pairs and one of the features, called fast wrap or something like that makes use of the metae shortcut. However, if I type alte inside vim nothing happens except that if I press it three times a Swedish a appears on the screen. Any ideas? Thanks
I just answered yesterday a question from an AutoPair user about displaying all meta-key equivalents for regular characters. That user was fortunate enough to be on a system where Alt + key consistently emits actual characters. In the course of answering I found that I could also use meta-keys in gVim on Windows but get strange results otherwise from Cygwin terminal Vim and when I use Vim after I SSH into Centos or Ubuntu machines.
So to reiterate what Christian said in his comment your best bet if you don't fall into the lucky group is to change the mappings to use key combinations that actually work for you.
TL;DR A portable solution would require using something other than "Alt" mappings.