Create post in the user's own Medium account from ChatGPT, Claude or any AI agent. Returns how to do it in Medium step by step (screens, buttons, fields) and opens nothing by itself; then do it with the cotlet_browser_* tools in the user's Medium Cloud Browser. Medium's official API: Medium has an old REST API, but it is no longer supported and Medium does not allow new integrations (checked 11 Oct 2026).