Minecraft Integration?

Hello, I'm trying to link my minecraft server and my website's forum page together I set up the Minecraft plugin CommunityBridge which claims it's compatible with vanilla forums. But my problem is that there's no section to add a Minecraft account when signing up for the forums and no addon that I could find that adds the capability. If it's some kind of code that I have to add i'm all for it. Thanks in advance
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