Technically there are 1,125,567.91067160 coins.
Simply because the left over from the ICO was burned / un-spendable does not mean they don't exist from the perspective of a block explorer.
You're missing the point. It matters from the perspective of coinmarketcap which is what I'm trying to get data for so XAI can be listed.
As a similar, if not exact example, IconicExpert's coin Bytecent (whose ICO also did not sell out), only lists a supply of 284,697 even though there were 3,000,000 offered for the ICO. Their block explorer lists the spendable amount of coins (not total offered) when requested: https://chainz.cryptoid.info/byc/api.dws?q=totalcoins
So...I ask again...for the purposes of coinmarketcap, where can I get an updating amount of spendable coins?