You filmed one vertical video. There is no reason to upload it three times. Creator OS publishes it as an Instagram Reel, a TikTok and a YouTube Short in one step, now or on a schedule.
+---------------------+
| vertical video |
| (9:16, uploaded |
| once) |
+---------------------+
| | |
v v v
Instagram TikTok YouTube
Reel Short
[cover] [cover] (picks its
own frame)
caption + time set once, published togetherHow to do it
- Upload the video once.
- Write your caption (add a title for YouTube).
- Pick the platforms and a time, then publish.
Short video also works on Facebook, LinkedIn, X and Threads.
Custom covers
Set one cover image and Creator OS applies it where the network supports it: Instagram Reels, TikTok, Facebook, LinkedIn videos and YouTube long videos. X, Threads and YouTube Shorts pick their own frame.
From an AI agent
Ask Claude: “Post this video to TikTok, Reels and Shorts tomorrow at 6pm with this caption.” The publish everywhere use case shows the API version, and post options lists what each network accepts.
Frequently asked questions
What formats work?
Standard MP4 and MOV video. Use a vertical 9:16 video for Reels, TikTok and Shorts.
Get started
Creator OS plans start at $19.99/month, with the API, the MCP connector and the CLI included. Create your account and connect your socials in a few minutes.