How to Connect MerchantSpring to ChatGPT (MCP Setup Guide)

Prerequisites

Before starting, make sure you have:

• A ChatGPT Plus plan

• A MerchantSpring Developer Portal account with an API key; ensure you are subscribed to the Public API

• Developer Mode enabled in ChatGPT (required for MCP). See 

Enable Developer Mode (Required)

Note: This applies to Personal Plus plans.

 1. Go to Settings
 2. Navigate to Apps & Connectors → Advanced Settings
 3. Turn Developer Mode ON

Steps to Connect MerchantSpring

Step 1: Open Connectors

• Go to the ChatGPT main chat screen

• Click “Add sources” (or “Connectors”)

• Select “Connect more”

Step 2: Create a Connector

• Click “Create” to add a new connector

Step 3. Fill in the following details:

• con (optional): Set a nice icon if you like

• Name: Merchant Spring (any descriptive name helps)

• Description: (optional)

• MCP Server url: https://mcp.merchantspring.io/mcp

• Authentication: Oauth

Step 4: Authenticate

• You’ll be redirected to log in to the Developer Portal

• Log in using your account

• Approve the connection

Step 5: Confirm Connection

Once successful:

• The connector will appear in your list

• MerchantSpring MCP is now enabled

Step 6: (Optional) Enable for Prompts

• You can manually select the connector when prompting ChatGPT

• In most cases, ChatGPT will automatically use it when relevant

If you don’t see it immediately, that’s okay—as long as the connection was successful.

Troubleshooting

If the connector doesn’t appear:

1. Refresh ChatGPT

2. Ensure Developer Mode is enabled

3. Confirm you are subscribed to the Public API in the Developer Portal

4. Try reconnecting the connector

Tip

If you’re setting this up for the first time, just follow the steps above—no coding or file installation is required.