Sign in with your own X account. A terminal or AI you give Read can see who you are on X; give it Full and it can post on your account as you, text with an optional link, and delete those posts. Each one starts at Off and gets only the level you choose, and every post is on your activity. X charges for every post and GBrain pays it from the workspace’s credit: 3¢ a post, or 40¢ for a post with a link in it. A deleted post is gone from X for good. Replies, images and quote posts are not included yet.
The page and the CLI print these from the same code, so they are what the CLI answers today.