> For the complete documentation index, see [llms.txt](https://help.intangible.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.intangible.ai/intangible-mcp-agents/openai/connect-chatgpt.md).

# Connect ChatGPT

Connect ChatGPT to Intangible's Model Context Protocol (MCP) server as a custom MCP plugin, then build 3D scenes from a chat.

Connect ChatGPT to Intangible by adding Intangible's Model Context Protocol (MCP) server as a custom plugin. Once connected, you build 3D scenes by typing a brief into a ChatGPT chat. The server URL is `https://mcp.intangible.ai/mcp`.

## At a glance

| Setting          | Value                                               |
| ---------------- | --------------------------------------------------- |
| Server URL       | `https://mcp.intangible.ai/mcp`                     |
| Where you add it | **Plugins › Add › Add custom MCP server**           |
| Authentication   | OAuth                                               |
| Sign-in          | **Continue to Intangible**, then **Approve access** |
| Studio tabs      | Exactly one. With two, ChatGPT stops                |

## Before you connect ChatGPT

You need an Intangible account and a ChatGPT account. Sign up for Intangible at [studio.intangible.ai](https://studio.intangible.ai/?utm_source=help.intangible.ai\&utm_medium=docs\&utm_campaign=inline-link\&utm_content=connect-chatgpt) if needed – see [Sign up and set up](/get-started/sign-up-and-set-up.md). A personal ChatGPT Plus plan can build scenes.

## ChatGPT: add the Intangible plugin

1. In ChatGPT, open **Plugins** in the sidebar.
2. Click **Add** at the top right, then **Add custom MCP server**.
3. Set the name to **Intangible** and the server URL to `https://mcp.intangible.ai/mcp`. Leave **Authentication** on **OAuth**.
4. Tick **I understand and want to continue**, then click **Create as a plugin**.

## ChatGPT: sign in to Intangible

1. ChatGPT shows **Connect Intangible**. Click **Continue to Intangible**.
2. An Intangible page reads **ChatGPT is requesting access to your Intangible account**. Click **Approve access**.

Intangible now appears under **Installed** on the Plugins page.

## ChatGPT: build a scene

1. Open a project in Studio at [studio.intangible.ai](https://studio.intangible.ai/?utm_source=help.intangible.ai\&utm_medium=docs\&utm_campaign=inline-link\&utm_content=connect-chatgpt). Close any other Studio tabs.
2. In ChatGPT, start a new chat and send:

> Use the Intangible plugin. My Studio tab is open on my project. Build a small living room: a sofa facing a TV on a low stand, a coffee table between them, and a floor lamp in the corner behind the sofa.

3. ChatGPT places the objects and tells you what it built. With the default **Allow low-risk tools** permission it does not stop to ask before each step.

For more on writing the description, see [Describe your first scene](/intangible-mcp-agents/intangible-mcp-agents.md#describe-your-first-scene).

{% hint style="warning" %}
**Keep one Studio tab open.** With two Studio tabs open, ChatGPT reports that the target is ambiguous and stops before placing anything. Close the extra tab and ask it to try again.
{% endhint %}

## Related

* [Agents & MCP](/intangible-mcp-agents/intangible-mcp-agents.md)
* [Choosing a model](/intangible-mcp-agents/choosing-a-model.md)
* [Troubleshooting and FAQ](/intangible-mcp-agents/troubleshooting-and-faq.md)

*Last updated 23 October 2026. Steps may change.*


---

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