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# Pareto's  MCP  server

# How to connect an AI client to Pareto Quantity Breaks

Connect Pareto to an AI client like Claude or ChatGPT to manage your discount campaigns in plain language, without leaving the chat.

## In this article

* [Before you begin](#2-before-you-begin)
* [Connect Claude (web or desktop)](#2-connect-claude)
* [Connect ChatGPT (Plus, Pro, Team, or Enterprise)](#2-connect-chatgpt)
* [Related articles](#2-related-articles)

## Before you begin

You'll need two values from the **How to connect an AI client** modal on your Pareto **Integrations** page. Open it and keep it nearby, you'll copy from it as you go.

![Pareto "How to connect an AI client" modal showing the MCP Server URL field with a Copy URL button, and the MCP API Key field with an Active badge and a Copy Key button](https://storage.crisp.chat/users/helpdesk/website/-/8/3/8/3/8383e5404a31c000/anh-man-hinh-2026-06-08-luc-09_1mv2jzt.png)

* **MCP Server URL:** the field at the top of the modal. Click **Copy URL**.
* **MCP API Key:** the field below it. It must show an **Active** badge. Click **Copy Key**.

Copy these live from your own modal rather than from this guide. The values are specific to your store, and the key can be regenerated.

![AI client dropdown in the Pareto connect modal, expanded to show the Claude.ai and ChatGPT options](https://storage.crisp.chat/users/helpdesk/website/-/8/3/8/3/8383e5404a31c000/anh-man-hinh-2026-06-08-luc-09_2jtvi4.png)

## Connect Claude (web or desktop)

Claude runs your MCP server from Anthropic's cloud, so your server must be reachable on the public internet.

1. **Open Claude settings.** In Claude.ai (web) or Claude Desktop, click your profile icon → **Customize** → **Connectors**.
2. **Add a custom connector.** Scroll to the bottom of the Connectors list and click **Add custom connector**.
3. **Paste the MCP Server URL.** Paste it into the **Remote MCP server URL** field. Leave **Advanced settings** empty, our server handles OAuth for you. Click **Add**.
4. **Authorize with your API key.** Claude opens the Pareto authorize window. Paste the **MCP API Key** and click **Continue**.
5. **Approve the scopes.** Review the permissions on the consent screen, then click **Approve**. The connector is now active.
6. **Use it in a chat.** Start a new conversation, click the **+** icon → **Connectors**, then toggle on **Pareto Quantity Breaks**.

![Claude Connectors settings page with the Add custom connector button at the bottom of the connectors list](https://storage.crisp.chat/users/helpdesk/website/-/8/3/8/3/8383e5404a31c000/anh-man-hinh-2026-06-08-luc-09_7zbwp4.png)

![Pareto authorize window prompting for the MCP Server, with a Add button](https://storage.crisp.chat/users/helpdesk/website/-/8/3/8/3/8383e5404a31c000/anh-man-hinh-2026-06-08-luc-10_19ggg61.png)
![Pareto authorize window prompting for the MCP API Key, with MPC ready-to-paste API Key field](https://storage.crisp.chat/users/helpdesk/website/-/8/3/8/3/8383e5404a31c000/anh-man-hinh-2026-06-08-luc-10_1nrvaz.png)


> ℹ️ Note: If the authorize window shows "API key verification failed", the key may have been revoked or regenerated. Go back to the **Integrations** page and copy the latest key.

## Connect ChatGPT (Plus, Pro, Team, or Enterprise)

ChatGPT needs Developer Mode to add custom MCP connectors. It uses OAuth, so you never paste an API key into ChatGPT itself.

1. **Enable Developer Mode.** Open ChatGPT → **Settings** → **Apps & Connectors** → **Advanced settings**, then toggle **Developer Mode** on.
2. **Add a new connector.** Back in **Apps & Connectors**, click **Add new connector**.
3. **Fill in the connector details.** Name: `Pareto Quantity Breaks`. Description: `Manage discount campaigns via natural language`. MCP Server URL: paste the URL from your modal. Authentication: **OAuth**. Check **I trust this application**.
4. **Create the connector.** Click **Create**. ChatGPT opens the Pareto authorize window in a new tab.
5. **Authorize with your API key.** Paste the **MCP API Key**, click **Continue**, then approve the scopes.
6. **Enable it in a chat.** Open a new chat, click the connector picker (**+** icon), then toggle on **Pareto Quantity Breaks**.

![ChatGPT Apps & Connectors settings with Developer Mode toggled on](https://storage.crisp.chat/users/helpdesk/website/-/8/3/8/3/8383e5404a31c000/anh-man-hinh-2026-06-08-luc-10_1en67ef.png)

![ChatGPT Add new connector form filled in with the Pareto Quantity Breaks name, the MCP Server URL, and OAuth selected as the authentication method](https://storage.crisp.chat/users/helpdesk/website/-/8/3/8/3/8383e5404a31c000/anh-man-hinh-2026-06-08-luc-10_ewewtv.png)

> ⚠️ Warning: ChatGPT only allows OAuth for custom connectors. Never paste your MCP API Key into ChatGPT settings. Only paste it in the Pareto authorize popup that opens in a browser tab.