Post everywhere from your AI assistant

XposterAI ships a Model Context Protocol (MCP) server. Connect it to Claude Desktop, Cursor or ChatGPT and your assistant can publish or schedule to every social network you've connected — X, Bluesky, Mastodon, LinkedIn, Pinterest and TikTok — write in your trained voice, and find rising posts in your niche to reply to.

You draft in the chat as you already do. The assistant finishes with “posted to X, Bluesky and LinkedIn — TikTok scheduled for 9am” instead of “now copy this into your scheduler.”

Endpoint

https://xposterai.com/mcp

Streamable HTTP (stateless JSON). Authenticate with your XposterAI API key as a Bearer token — find it in the dashboard under Account. Admin accounts can't use the API.

Set up

Claude Desktop / Claude Code

{
  "mcpServers": {
    "xposterai": {
      "command": "npx",
      "args": ["-y", "mcp-remote", "https://xposterai.com/mcp",
               "--header", "Authorization: Bearer YOUR_API_KEY"]
    }
  }
}

Cursor

{
  "mcpServers": {
    "xposterai": {
      "url": "https://xposterai.com/mcp",
      "headers": { "Authorization": "Bearer YOUR_API_KEY" }
    }
  }
}

ChatGPT

Add https://xposterai.com/mcp as a connector in developer mode with the Bearer header. A directory listing with one-click sign-in is planned.

Tools

Tool	What it does	Cost
`accounts.list`	Your connected networks and their limits	free
`credits.get`	AI and post credits remaining	free
`voice.write`	Write a post or a reply in your trained voice (persona), with safety warnings	1 AI credit
`post.preview`	Character fit per platform, exact credit cost, link and bait warnings, TikTok readiness	free
`post.publish`	Publish now to the chosen networks (idempotent)	1 post credit per network; 13 for an X post with a link
`post.schedule`	Queue for a time you choose; credits spend when it sends	at send
`post.queue` / `post.cancel` / `post.status`	See, cancel and check outcomes	free
`radar.find`	Trend Radar: rising posts in your lane worth replying to right now	3 AI credits, first 5 free, 15-min cache

Same rules as the web

Every tool calls the same code the Scheduler Studio composer uses. Nothing is cheaper or looser through MCP.
An X post containing a link costs 13 credits and is downranked — the assistant is told to warn you.
TikTok posts need your explicit choices (who can view, comments, disclosure). The assistant must ask; it can't guess.
The assistant may schedule at most two X posts per day. Replies to other people's posts are drafted for you to post on X yourself.
Publishing requires an idempotency key, so a retrying assistant never double-posts.

Privacy

The server only acts on your own account, with your key. It never reads your assistant's conversation — it sees only the arguments of each tool call. Media passed by URL is fetched once, checked, and stored like an upload. Every call is recorded in your Activity. Revoke access any time by regenerating your API key.

Connect your networks →