如何透過 MCP 在 Claude 或 ChatGPT 排程社交媒體帖文（2026）

Claude and ChatGPT can write a week of posts in a minute. Neither one can post them on its own. What closes that gap is an MCP server from a social media scheduler: you connect it once, and the assistant gets tools like "create post", "list scheduled posts" and "delete post".

I build one of these schedulers (Fuxux), so I'll use it for the exact steps, but the setup is the same for any scheduler with a remote MCP server. A table of the others is at the end.

What you need

1. A scheduler account with your social accounts connected. The assistant can only post to accounts you've connected there. It never sees your Instagram or LinkedIn password.
2. The scheduler's MCP server, reached in one of two ways:
   • A directory listing (Claude's connector directory, ChatGPT's plugin directory). You click Connect, sign in, done.
   • The server URL, added by hand as a custom connector. Same result, a few more clicks.

Most schedulers now let you sign in (OAuth) instead of pasting an API key. Prefer that: nothing secret ends up in a chat or a config file, and you can revoke access from the scheduler's settings.

Claude (web, desktop and mobile)

From the directory:

1. Open the scheduler's page in Claude's connector directory. For Fuxux that's https://claude.ai/directory/fuxux.
2. Choose Connect. Claude opens the scheduler in your browser.
3. Sign in, check what Claude will be able to do, and choose Allow access.
4. Test with something read-only first: "list my connected accounts in Fuxux".

By hand: Settings → Connectors → add a custom connector, name it, paste the server URL (https://www.fuxux.com/api/mcp), then Connect and sign in.

The connection belongs to your Claude account, so it's there on web, desktop and mobile.

Claude Code

One command, then sign in from inside a session:

claude mcp add --transport http fuxux https://www.fuxux.com/api/mcp

Run /mcp in Claude Code, pick fuxux, authenticate, and your browser handles the sign-in. No key is stored anywhere.

ChatGPT

From the plugin directory: search for the scheduler under Plugins (or open its listing), choose Install plugin, then Connect. ChatGPT opens a new tab where you sign in and allow access. In a chat, mention it with @Fuxux (or whatever the plugin is called).

As a custom MCP server: Plugins → Add → Create custom MCP server, paste the URL, leave authentication on OAuth. Custom MCP servers need a paid ChatGPT plan; directory plugins don't.

Prompts that work well

• "Here's the outline of my talk. Turn it into a LinkedIn post and a shorter Threads version, and save both as drafts."
• "Plan three Facebook posts for our café's opening week and schedule them for 8:00 on Monday, Wednesday and Friday."
• "Show me my drafts and suggest which one to schedule first."
• "Check my dashboard: do any of my accounts need reconnecting?"

Things that trip people up

• It can publish, not just draft. Publishing is one of the tools. If you want to approve everything, say "always save posts as drafts" and review them in the scheduler's calendar.
• Images need public https links. The assistant passes URLs, not files from your desktop. Instagram won't take a post without an image or video.
• TikTok wants you to choose who can see each post. With Fuxux, the assistant asks you and posts directly once you've picked; if you don't, the post lands in your TikTok inbox and you finish it in the app. Other schedulers handle this differently, so check before you rely on it.
• Time zones. Say the time zone in the prompt ("8:00 Madrid time") or check the scheduled time before you leave the chat.
• Plan limits still apply. The assistant can't post more than your scheduler plan allows. On Fuxux's Free plan that's 3 connected accounts and 5 published posts a month, and X needs a paid plan.

Schedulers with a remote MCP server

From each vendor's own docs, checked 25 October 2026 (tool counts change, so check before you pick):

More tools isn't automatically better: a scheduler with 27 tools can do more than post, but every tool description takes up room in the assistant's context. If you only want to draft and schedule, a small set is easier for the model to use correctly.

There's a longer comparison with prices and which ones are in each directory here: https://www.fuxux.com/blog/social-media-schedulers-for-chatgpt-and-claude?ref=devto

I build Fuxux. The steps above are the same for any scheduler on the list; swap in its URL.