There is a wordpress pay with steem plugin, but its a year old, and full of bugs, I have made it work twice, but in each case over the last six months, I had to go through it on different installs and fix a ton of bugs related to PHP version differences from the older code to the modern php versions.
But its out there, and if you have coders or are one, its a thing, which works with wordpress woocommerce store and ties an online checkout to wallet transactions via a memo code and timed scanning jobs from the wordpress side to confirm the transaction happened and make the order confirmed on a timed basis every minute or two after an order comes in.
wow that's so cool. I'm not a coder but would love to meet one! I need one in my life I think for things like this lol.
This is awesome, thanks for telling me about it. Too bad the plugin is full of bugs though