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Grok on the web, iOS and Android can call remote MCP servers. Add PostQueen at grok.com/connectors, and Grok can list your channels, generate media and schedule posts through her 14 MCP tools. This page is Grok chat only. Grok Bot is the cloud agent. Grok Build is the terminal coding agent. Connecting here does not install PostQueen on either.
You need your PostQueen API key first. In app.postqueen.ai, open Settings → API Keys and click Reveal.
With this setup, your API key travels inside the connector URL, so the URL itself is a secret. Anyone who has it can post from your accounts. Do not screenshot the connector settings. If the key leaks, regenerate it in Settings → API Keys and update every client that uses it.

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Setup

1

Open Grok connectors

Go to grok.com/connectors, then New Connector → Custom. Official reference: xAI Connectors.
2

Paste the MCP URL

Name it PostQueen and enter the streamable HTTP URL with your API key in the path:
Leave extra authentication empty: the key in the URL is the authentication. If your client prefers a header instead, point it at https://api.postqueen.ai/mcp with Authorization: Bearer YOUR_API_KEY.
3

Confirm

In a Grok chat, ask it to list your connected social media accounts. Your channel names come back when Grok calls integrationList.
Grok reaches PostQueen from xAI’s infrastructure, not from your machine, so the URL has to be reachable over the public internet. api.postqueen.ai is. A self-hosted instance behind a VPN or on your LAN will not connect this way.
On Grok Business and Enterprise, an admin must provision the connector in console.x.ai (Grok Business → Connectors) before members can use it. Availability and menu names shift; if you do not see Custom, check xAI’s connectors docs.

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Self-hosted

Swap the host for your NEXT_PUBLIC_BACKEND_URL and keep the /mcp/YOUR_API_KEY tail. Most self-hosted setups serve the backend under /api, so the path sits at /api/mcp. The reverse proxy has to forward /mcp and stream the response: MCP on a self-hosted install.

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Next steps

Talk to her in Grok

What to ask once the connector is on

Grok Bot

Cloud agent. Add the server in the Bot chat, not here.

Grok Build

Terminal agent. grok mcp add, not grok.com/connectors.

MCP tools

All 14 tools Grok gains, with every parameter