---
title: "AI Activate - Connecting ChatGPT"
slug: "ai-activate-connecting-chatgpt"
description: "Connect ChatGPT to the Nasuni AI Activate MCP server effortlessly with automatic Dynamic Client Registration and enable Developer Mode for custom connectors."
updated: 2026-09-30T21:14:41Z
published: 2026-09-30T21:14:41Z
canonical: "docs.nasuni.com/ai-activate-connecting-chatgpt"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.nasuni.com/llms.txt
> Use this file to discover all available pages before exploring further.

# AI Activate - Connecting ChatGPT

## Overview

This guide covers how to connect ChatGPT to the Nasuni AI Activate MCP server.

ChatGPT supports automatic Dynamic Client Registration (DCR), which registers ChatGPT with the server at connection time. You do not perform the manual registration procedure used for clients without DCR. You provide the MCP server URL, and ChatGPT handles the OAuth setup, with no Client ID, client secret, or scopes to enter.

The one extra requirement specific to ChatGPT is that custom MCP connectors are available only through Developer Mode, a beta feature you (or a workspace admin) must enable first.

This guide is a companion to [AI Activate - Connecting MCP Clients That Do Not Support Automatic DCR](/v1/docs/aia-connecting-nodcr), which explains how OAuth and DCR work in this setup. ChatGPT skips the manual registration steps in that document because DCR is automatic.

The steps below summarize the OpenAI documentation linked in each section. OpenAI’s product UI is changing (for example, as of December 17, 2025, OpenAI renamed “connectors” to “apps,” so you might see either term), so defer to OpenAI’s pages for the authoritative current steps. This guide provides the Nasuni endpoint and specifics.

OpenAI’s documentation:

- [Developer mode and MCP apps in ChatGPT](https://help.openai.com/en/articles/12584461-developer-mode-and-mcp-apps-in-chatgpt)
- [Connect from ChatGPT (Apps SDK)](https://developers.openai.com/apps-sdk/deploy/connect-chatgpt)

## Endpoint

| Setting | Value |
| --- | --- |
| MCP server URL | [https://preview.mcp.nasuni.com](https://preview.mcp.nasuni.com) |
| Authentication | OAuth (handled automatically via DCR: no Client ID, client secret, or scopes to enter) |

## Step 1: Enable Developer Mode

Custom MCP connectors require Developer Mode, a beta feature. Developer Mode is available on ChatGPT Plus, Pro, Business, Enterprise, and Education plans on the web. ChatGPT Free does not support custom connectors.

To enable Developer Mode for Individual plans (Plus, Pro), follow these steps:

1. Click the avatar on bottom left.
2. Open **Settings** **→** **Apps.**
3. Go to **Advanced settings**, and turn on **Developer Mode**.
4. Accept the warning that custom connectors run third-party code on your behalf.

To enable Developer Mode for Workspace plans (Business, Enterprise, Education), a workspace admin or owner must do so at the workspace level (**Workspace Settings** **→** **Permissions and Roles** **→** **Connected Data**). Only admins and owners can enable Developer Mode and publish apps for the workspace.

The exact menu labels can change. See OpenAI’s “[Developer mode and MCP apps in ChatGPT](https://help.openai.com/en/articles/12584461-developer-mode-and-mcp-apps-in-chatgpt)” page for the current path.

## Step 2: Add the Connector

To add the connector, follow these steps:

1. In the ChatGPT settings, open the **Connectors** (or **Apps**) section and choose **Create** (or **Add custom connector**).
2. Enter the **MCP server URL** from the [**Endpoint**](/v1/docs/chatgpt#endpoint) section above.
3. Give the connector a name (for example, “Nasuni AI Activate”) and a short description.
4. When prompted, complete the OAuth sign-in. There are no static credentials to enter, since ChatGPT registers via DCR automatically.

To use the connector in a chat, click the “**+**” next to the message composer, choose **More**, then select the connector to add it to the conversation.

## Network Reachability

ChatGPT connects to the MCP server via OpenAI’s cloud, not your local device, and ChatGPT cannot reach localhost or servers that are only available on an internal network or via a VPN. The endpoint must be reachable over the public internet via HTTPS.

> ## *Notes*
> 
> - *Because ChatGPT supports automatic DCR, there is no manual client registration step and no Client ID, client secret, or scopes to configure.*
> - *Developer Mode is a beta feature and is intentionally powerful. Write actions require explicit in-chat confirmation, and ChatGPT might limit features such as memory while a Developer Mode connector is active in a conversation. Only connect to servers you trust.*
> - *Terminology: OpenAI renamed “connectors” to “apps” on December 17, 2025. Existing functionality is unchanged, but you might see either term depending on where you are in the UI.*
> - *For the authoritative and most current setup steps, always defer to the linked OpenAI documentation, since OpenAI’s UI can change.*