多栖 Crosspost

Crosspost is the browser-side companion of the Obsidian plugin "Note Content Studio". It does one thing: it takes an article you finished in Obsidian and saves it as a draft on Xiaohongshu and X, using the accounts you are already signed in to in this browser. It does not work on its own and it never publishes anything automatically. HOW IT WORKS 1. In Obsidian, Note Content Studio renders your note (text, image cards, cover) and sends it to this extension over a local WebSocket connection on 127.0.0.1, protected by a pairing token you set once in both places. 2. The extension writes the draft using the same web endpoints the platforms' own editors use: • Xiaohongshu: an image-and-text draft in Creator Center (the draft is stored in the browser, so keep a Creator Center tab open; the extension reuses it). • X: a draft in "Unsent posts", up to 4 images. 3. Each platform's result (success, link to the draft, or the error) is sent back to Obsidian, where the note's status changes from "pending" to "confirmed" or "failed". The extension's History page keeps the last 25 results. 4. You open the platform, review the draft and post it yourself. WHAT THE POPUP SHOWS • Sign-in status of Xiaohongshu and X, with a daily self-check (is the Creator Center tab open, is the X draft endpoint still valid) and a "Re-check" button. • Today's quota: Free tier allows 3 deliveries per day; Pro (30 per day) and Max (unlimited) keys are entered in the Obsidian plugin and passed along with each delivery. • History with per-platform results and error details. • Settings: the pairing token and the local server address used by Obsidian. • The interface follows your browser language (Chinese or English). REQUIREMENTS • Obsidian desktop with the Note Content Studio plugin (available in the Obsidian community plugin directory). • Being signed in to xiaohongshu.com and/or x.com in this browser. WHAT IT DOES NOT DO • It does not read, extract or modify any web page you visit. • It does not sync to any other platform. • It does not post or publish; drafts only. PRIVACY The extension reads your Xiaohongshu and X sign-in cookies only to detect sign-in state and write drafts as you. Article content never passes through a third-party server. The only data sent to the author's server (api.runfast.xyz) is an anonymous device ID, your license key if you entered one, the platform name and a timestamp, used to count the daily quota. No analytics, no ads. Full policy: https://runfast.xyz/crosspost/privacy LICENSE Distributed under GPL-3.0. For three years from this release, the complete corresponding source code is available free of charge from the author (boodorg@gmail.com) on request.