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Connect ChatGPT to Post Array

ChatGPT connects to Post Array as an app in developer mode. Once it's added, you can ask ChatGPT to draft and schedule posts for any of your projects.

Checked against ChatGPT's own guide on October 27, 2026. ChatGPT's guide

All AI agents

How to connect it

  1. Step 1 In ChatGPT on the web, open Settings, then Apps, and turn on Developer mode under Advanced settings. Developer mode needs a Plus, Pro, Business, Enterprise or Edu plan.

  2. Step 2 Choose Create app, paste this address, and pick OAuth. ChatGPT then asks you to sign in.

    https://mcp.postarray.com/mcp

Three things to try

  • Plan the week

    Ask it

    Draft five posts for my Bakery project, one each weekday at 9 in the morning my time. Check them, tell me about any pace warnings, and schedule them once I say yes.
  • See how last week went

    Ask it

    List what I published last week with a View post link for each account, and each account's follower count where it's available.
  • Fix what needs attention

    Ask it

    Show me any posts that need attention. For each account, tell me in plain words what went wrong and the one thing I should do next.

You stay in charge

Your agent can read your accounts, write drafts, check them and schedule them. When it wants to post right now, Post Array gives it a link, and nothing goes out until you open it and say yes. If your project needs approval, scheduled posts wait for it too.

What it can do

31 tools, grouped by how careful they need to be: 22 only read, 6 make changes you can undo, and 3 schedule, post or cancel.

Questions

Does connecting ChatGPT cost extra?

Post Array does not charge for connecting an agent. ChatGPT may need its own plan, so check its pricing.

Can ChatGPT post without asking me?

No. It can draft and schedule. Posting right away always needs you to approve it in Post Array, and a project that needs approval holds scheduled posts until someone approves them.

Do I need an API key?

No. You sign in to Post Array in your browser and approve what ChatGPT may do. Nothing secret goes in a config file.

Ready to try it?

Make a free account, connect your social accounts, then connect ChatGPT. It takes a few minutes.

Start freeFree to start. No card. No developer accounts.

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