Add Heropost to ChatGPT.
One link, pasted once.

1Your Heropost link

In Heropost, open Home → Connect your AI tools → ChatGPT and press Copy. You get your link. The link is the key — no sign-in, no token.

2Where it goes in ChatGPT

On chatgpt.com

1. Open Settings → Plugins → Browse plugins and press +. The New Plugin window opens.
2. Name it Heropost. Leave Connection on Server URL and paste your link.
3. Set Authentication to No authentication — OAuth won’t work with Heropost.
4. Tick I understand and want to continue and press Create.

In the ChatGPT app for Mac

1. Open Settings → Plugins, go to MCPs and press Add.
2. Name it Heropost and set Type to Streamable HTTP.
3. Paste your link into URL. Leave Bearer token env var and Headers empty.
4. Press Save.

3Try it

Then open Connect your AI tools → Activity in Heropost. A saved draft shows as create post · 1 action.

Good to know

Who can connect

Workspace owners and admins — they’re the ones who see Connect your AI tools.

How many tools

Every Heropost plan connects up to 3 AI tools, counted across all your workspaces. Agent Pro connects 10; Agent Agency has no limit. All in use? Remove one in the workspace where it’s connected, under Connect your AI tools → Your tools.

What it can do

You choose, in Your tools → ChatGPT → Permissions: drafts are always allowed; publishing, reading the inbox and which accounts are yours to switch. Replying in the inbox is on Agent Pro and Agency.

The link is the key

It’s shown once. New link replaces it and the old one stops working instantly; Remove cuts ChatGPT off.

What it costs

One action is one post saved or one reply sent. Reading, reporting and the writing itself are free.

ChatGPT says the MCP server does not implement OAuth.

Authentication was left on OAuth. Add Heropost again with Authentication set to No authentication.

Your screen looks different?

Tell support, with a screenshot and any error text. We update this guide from real screenshots.