mcp server
plugins
Claude Code plugin marketplace for PostOnce: MCP servers and skills for LinkedIn, Instagram, TikTok, YouTube, Facebook, X (Twitter), Threads, Bluesky and Pinterest.
Set up
Runs on your computer. Pick your agent and operating system.
This project does not publish an install method we can turn into a config. Follow the README instead.
README
synced Oct 21, 2026PostOnce plugins for Claude Code
The Claude Code plugin marketplace for PostOnce's social media MCP servers. Each plugin connects your agent to one platform through its official API and adds the writing skills for that platform.
claude plugin marketplace add postoncehq/plugins
claude plugin install postonce@postoncehq
The first time you use a PostOnce tool, Claude Code asks you to sign in to PostOnce (or run /mcp and pick postonce). No API key needed.
| Plugin | What it adds |
|---|---|
postonce | Crosspost to all 9 platforms: post-everywhere, content calendar, hook vault and viral formats, plus the publishing workflow |
linkedin-mcp | LinkedIn posts, carousels, formatting, headlines and profile copy |
instagram-mcp | Instagram captions, carousels, Reel scripts, bios and hashtags |
tiktok-mcp | TikTok scripts, hooks, captions and photo slideshows |
youtube-mcp | YouTube titles, descriptions, tags, scripts, Shorts and thumbnails |
facebook-mcp | Facebook Page posts, Reels and page copy |
x-mcp | X (Twitter) posts, threads, formatting and bios |
threads-mcp | Threads posts, crossposts and bios |
bluesky-mcp | Bluesky posts, bios and custom domain handles |
pinterest-mcp | Pinterest pins, descriptions, keywords, boards and blog-to-pins |
Every plugin also includes a content calendar skill and the shared postonce publishing skill. Claude (claude.ai and desktop) and ChatGPT users don't need a plugin: add https://postonce.to/mcp as a custom connector instead. See PostOnce integrations.
License
MIT. See LICENSE.