I would like to recommend my own plugin for this use case, Web-API which offers tons of endpoints to interact with your server.
It doesn’t have a shop itself, so you would still have to make a website for your actual shop, but you can use Web-API to communicate with your minecraft server.
You can find a list of all the routes/methods supported here
There also used to be Web Control, but it hasn’t been updated in a long time
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Which type of CMS that your website is using? You may see there are a lot of plugin that may support you to create a shop online. However, you must get the plugin that may support your CMS. In my point of view, it’s better for you search more from Google
Hello I resume this topic because I got back on Minecraft with a server I’m still stuck with this website problem I tested web API and unfortunately it does not work with my external site and my server suddenly I do not always know not how do you get an idea ?!