---
title: "How to Add a Custom MCP Server to ChatGPT, Step by Step | site.link"
description: "Add site.link to ChatGPT as a custom MCP server from the Plugins page in about a minute, sign in with a 6-digit code, and call it in any chat with @site.link. No developer mode needed."
url: "https://site.link/help/add-mcp-app-to-chatgpt"
---

# Add site.link to ChatGPT as a custom MCP server

site.link works inside ChatGPT as a plugin you add from its MCP server. It lets ChatGPT claim names and connect your Site for you, and you only add it once.

What you need

* A ChatGPT account with ChatGPT Sites and custom domains. Enterprise workspaces don't have custom domains yet.
* The email address you want your site.link account under.

## 1\. Open Plugins

In ChatGPT, click **Plugins** in the sidebar. You can also get there from **Settings**: open **Plugins** under Integrations and click **Browse directory**. You don't need developer mode for this.

ChatGPT renames its menus now and then. If you don't see Plugins, look for Apps in the same place.

## 2\. Add a custom MCP server

Click **Add** at the top of the page and choose **Add custom MCP server**. Fill in the form:

* Name: **site.link**
* Connection: leave it on **Server URL** and paste the address below
* Authentication: leave it on **OAuth**

`https://mcp.site.link/mcp`

Tick **I understand and want to continue** and click **Create as a plugin**.

## 3\. Sign in to site.link

ChatGPT opens a site.link window. Enter your email and click **Send code**. A 6-digit code arrives from login@site.link and works for 10 minutes. Type it in, click **Continue**, then **Allow** to let ChatGPT use site.link.

That's your site.link account made. Use the same email later to sign in to your account and see your names.

## 4\. Call it in a chat

Open the chat where you built your Site. Type **@site.link** and pick it from the list that pops up. Picking it matters: pasting the text "@site.link" doesn't attach the plugin. Then ask your question.

@site.link Is mycafe.site.link available?

 Used site.link

Yes, mycafe.site.link is free. Want me to give it to this Site?

This works in chats you started before adding site.link, too. Next, [connect your ChatGPT Site to your address](/help/connect-chatgpt-site).

## Related guides

* [Connect your ChatGPT Site](/help/connect-chatgpt-site)
* [Add the domain by hand](/help/chatgpt-site-dns-records)
* [Pick and claim your name](/help/claim-a-name)

Still stuck? Email [care@site.link](mailto:care@site.link) with the address you're working on.