How to connect ChatGPT to the Foureyes MCP

Before you start

• Full support is on ChatGPT Business, Enterprise and Edu.

• ChatGPT Pro can connect, but only for read actions. Pro users cannot send messages or create audiences through Foureyes.

• Setup works on ChatGPT web only. You cannot add the connection on mobile.

• Only an admin or owner of your ChatGPT workspace can add and publish the connection. If that's not you, forward this article to your admin.

Admin steps (one-time, workspace-wide)

Add the server

1. Log into ChatGPT on the web

2. Go to Plugins

3. Select the plus button, then select Add custom MCP server

4. Enter "Foureyes" in the name

5. Under Connection, enter "https://mcp.foureyes.app"

6. For authentication, select OAuth

7. Read the risk warning and select the I understand and want to continue checkbox

8. Select Create as a plugin

9. Log in to your Foureyes account when prompted: enter your email, and you'll receive a login code

10. Review the list of Foureyes tools that ChatGPT found

Publish it for your workspace

1. Go to the Admin Console and select your ChatGPT workspace

2. Open Plugins, then select Manage Legacy Apps

3. Select Drafts, find Foureyes, then select Publish

4. Review the safety warnings. Foureyes has tools that can make changes, such as building audiences and sending messages

5. Enterprise/Edu only: use Configure Actions to turn specific tools on or off, and Configure Access to pick which groups can use Foureyes

Once published, Foureyes appears in your workspace's approved apps list.

*Then, every staff member must connect their own Foureyes login:

1. In ChatGPT, go to Settings → Plugins

2. Find Foureyes and connect it

3. You'll be prompted to log in to your Foureyes account: enter your email, and you'll receive a login code to authenticate

Use Foureyes in a chat

1. Start a new chat

2. Type @ in the message box and select Foureyes

3. Ask your question, for example: "How many leads did we get last month?"

Select Foureyes again with @ when a follow-up question needs new data. ChatGPT may ask you to confirm before Foureyes makes a change.

Good to know

• When Foureyes adds new tools, they do not show up in ChatGPT on their own. An admin must refresh the tool list in workspace settings and publish the update.

• If Foureyes calls start to fail after an update, ask your admin to refresh the Foureyes tools.

• Deep research in ChatGPT can read Foureyes data but cannot make changes.

OpenAI's full guide: Connecting custom MCP servers in ChatGPT