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Platforms

What each social and article destination accepts, and the rules BrainyShorts enforces before it publishes.

Connect accounts at Dashboard → Social accounts. Each target in a post names a social_account_id and its platform. BrainyShorts checks these rules when you create the post, so a bad target fails with a 400 rather than failing silently later.

Social platforms

Platform platform Media Notes
TikTok tiktok Photo posts (carousel of images), video Media must be on storage.brainyshorts.com
Instagram instagram Single image, 2–10 image carousel, Reels Professional (Business or Creator) accounts only
YouTube youtube Video Drafts only through the REST API and MCP
LinkedIn linkedin Single image, multiple images, MP4 video Personal profiles only
X x Up to 4 images, or 1 MP4 video X bills API access separately

TikTok

  • Photo posts pull images by URL, and TikTok only accepts URLs on a verified domain. Upload through /media/uploads and use the returned public_url.
  • TikTok rejects long photo titles, so BrainyShorts strips hashtags from the title and truncates it to 80 characters. Put hashtags in the caption.

Instagram

  • Connect with Instagram Login. The account must be a Business or Creator account; no Facebook Page is needed.
  • Instagram processes media asynchronously, so a delivery can sit in processing for a minute or two before it becomes posted.

YouTube

  • publish and schedule are rejected for YouTube targets in the REST API and MCP. Create a draft, or publish YouTube videos through a scheduled run with skill version 1.2.0 or later, which sends the bytes straight from your machine to Google.

LinkedIn

  • Posts go to your personal profile. Company Page publishing needs LinkedIn’s separate Community Management API approval and isn’t supported.
  • Videos are capped at 32 MB.

X

  • Captions are limited to 280 characters when any X target is present.
  • Up to 4 images (5 MB each) or 1 video (32 MB).
  • X charges for API access separately from BrainyShorts.

Articles

Long-form articles use POST /api/cli/articles or the MCP article tools. A single article can go to several destinations at once.

Destination platform Connection Target settings
DEV.to devto API key none
Hashnode hashnode Personal access token publication_id (required)
Reddit reddit OAuth subreddit (required), flair_id, flair_text, nsfw, spoiler, send_replies
LinkedIn linkedin Existing LinkedIn connection none
X x Existing X connection none
  • DEV.to takes at most 4 tags. Get a key under Settings → Extensions → DEV Community API Keys.
  • Hashnode needs the publication ID from that publication’s dashboard settings on every target.
  • Reddit takes a bare subreddit name (programming, not r/programming). Titles are limited to 300 characters.
  • LinkedIn has no public API for native articles. BrainyShorts publishes a post whose text is the article intro (up to 3,000 characters) with a link card to canonical_url, so set a canonical URL.
  • X publishes a native long-form X Article, not a thread. The account needs an X Premium subscription.

An article counts as published once any destination succeeds, and failed only when all of them fail. Retrying resends only the failed destinations.

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