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ChatGPT is OpenAI’s AI assistant. You add PostQueen as a developer mode app from the Plugins page on the web, and ChatGPT can then list your channels, write and schedule posts, add a file from your device, and tell you how your published posts did.
A sample ChatGPT chat with PostQueen connected: a request for posts, the PostQueen tools it used, and the reply

Before you start

  • Plans: Plus, Pro, Business, Enterprise and Education, on the web. Not Free. OpenAI’s pages disagree on which plans can make changes such as scheduling a post, so check yours on OpenAI’s developer mode help page.
  • Platforms: ChatGPT on the web only.
  • A PostQueen API key. A workspace admin copies it, or the ready-made address, from Connections.
Where the API key is: in the app, open Connections > API Keys. Only a workspace Admin or Super Admin can reveal or rotate it; other members see it masked. A workspace has one key, and each agent card on Connections shows your MCP address with the key already filled in.

Connect ChatGPT

These steps use the key address with No Authentication. To sign in instead of using a key, see Other ways to connect.
1

Turn on developer mode

In ChatGPT on the web, open Settings > Security and login and turn on Developer mode. On Business, Enterprise and Education, an admin first allows it under Workspace settings > Permissions & roles.
2

Create the app

Go to chatgpt.com/plugins and press +. Enter the name PostQueen and a short description, and under Connection enter your key address:
3

Choose No Authentication

Set Authentication to No Authentication, since the key is part of the address, and create the app. It appears under Drafts.
4

Select it in a chat

In a chat, open the + menu, choose Developer mode and select PostQueen.

Check that it works

Ask ChatGPT: “List my PostQueen channels.” It answers with the channels you connected in PostQueen. ChatGPT asks you to confirm each action that changes something, such as scheduling a post; review what it will send, then confirm.

Good to know

  • The Plugins page is the current path. Guides that say Settings > Apps > Advanced settings describe the older menus.
  • ChatGPT cannot add PostQueen for you. It works with the tools once you add the app yourself.
  • The address carries your API key. Keep it private. If it leaks, a workspace admin rotates the key under Connections > API Keys, and you update the app.
  • Upload from your device. PostQueen’s upload widget opens an Upload Media panel in ChatGPT, where you add a photo or video from your device.
  • The ChatGPT desktop app’s MCP servers setting belongs to Codex, not to the web chat. Add PostQueen on the web.
  • ChatGPT cannot run the PostQueen CLI. Use the MCP address.
  • Ask for drafts when you want to check first. A draft waits on your PostQueen calendar, and nothing publishes until you schedule it.
  • What it cannot do over MCP: delete a post, or change a post’s text or time. Do that on the calendar in the app. The MCP tools lists what it can do.

Other ways to connect

The key address has 22 tools. The sign-in address has 21, all but ask_postqueen.
With the sign-in, no key is copied or stored in ChatGPT. Only a workspace admin can approve it.
1

Create the app with the sign-in address

At chatgpt.com/plugins, press +, enter the name PostQueen and a description, and under Connection enter https://api.postqueen.ai/mcp-oauth-dynamic.
2

Choose OAuth

Set Authentication to OAuth and create the app. Sign in to PostQueen and approve.
3

Select it in a chat

Open the + menu, choose Developer mode and select PostQueen.
The access does not expire on its own. Revoke it in PostQueen under Connections > Approved Apps.

Try this first

The draft appears on your PostQueen calendar, ready for you to check and schedule. Prompts to try has more.

Troubleshooting

More fixes are on Troubleshooting agents.

Is it the same as Codex?

No. OpenAI’s coding agent, Codex, has its own setup: ChatGPT on the web does not read Codex’s config, so a server you add to Codex does not reach the web chat.

Next steps

Every agent

Which agents can post to PostQueen, and how each one connects.

The MCP tools

What each of the 22 tools does, and what an agent cannot do.

Prompts and tool calls

The order an agent calls the tools in, with prompts that work.

Troubleshooting agents

What to do when a connection or a command fails.
Last modified on September 24, 2026