Connect Merchant Center to ChatGPT

How do I connect Google Merchant Center to ChatGPT?

ChatGPT cannot open Merchant Center on its own. GSC Wizard connects the two: its MCP server at mcp.gscwizard.com holds the Merchant Center access, and ChatGPT calls its shopping tools to read your free listing performance, the products Google is holding back, price insights and feed health instead of guessing them.

Connector URL: https://mcp.gscwizard.com/mcp

The short answer

Link Merchant Center to your shop in GSC Wizard first, then pick the route that matches how you use ChatGPT:

  1. A custom MCP connector (recommended). Add https://mcp.gscwizard.com/mcp under Settings → Apps in developer mode and sign in. It needs ChatGPT Plus, Pro, Business, Enterprise or Edu.
  2. The OpenAI Responses API. Pass the same URL as a remote MCP tool with an API key, for scripts, scheduled shop reports and your own agents.

Use the connector rather than the GSC Wizard app from the ChatGPT app directory. A directory app offers the tools of its last reviewed version, so it can miss Merchant Center tools the server already has, while a connector reads the server's tool list as it is today.

Before you start

Link Merchant Center in GSC Wizard, not in ChatGPT

ChatGPT reads Merchant Center through the link you set per site in GSC Wizard, so you never paste a merchant ID into a chat. If the property's Organic Shopping report in the app shows numbers, ChatGPT can read them too.

  1. 1

    Start a trial or plan

    MCP access is part of every GSC Wizard plan, and every new account starts with a 7-day free trial. Sign in at tool.gscwizard.com with Google.

  2. 2

    Connect Merchant Center

    Connect Merchant Center on the Account page. Google offers no read-only Merchant Center permission, so its consent screen asks to manage your product listings, but GSC Wizard only reads your reports and catalog and never edits products or your feed.

  3. 3

    Link the account to your shop

    Open the property, expand E-commerce in the sidebar, click Organic Shopping and pick the Merchant Center account it maps to. The Merchant Center setup guide covers multi-client accounts and the registration step Google sometimes asks for.

Already using GSC Wizard in ChatGPT for Search Console? There is nothing to add: the shopping tools live on the same server, so your existing connector already has them.

Option 1 - recommended

Add GSC Wizard as a custom connector

Custom MCP servers live under Settings → Apps in developer mode and need ChatGPT Plus, Pro, Business, Enterprise or Edu (not Free or Go). This route always offers every Merchant Center tool the server has.

  1. 1

    Turn on developer mode

    In ChatGPT, open Settings → Apps and turn on developer mode under the advanced settings. On a Business or Enterprise workspace, an admin may have to allow developer mode or custom apps first.

  2. 2

    Add the MCP server

    Create a new app named GSC Wizard, enter https://mcp.gscwizard.com/mcp as the server URL and set authentication to OAuth. Leave the client ID and secret empty, because ChatGPT registers itself with the server.

  3. 3

    Sign in and approve

    ChatGPT opens the GSC Wizard sign-in screen, which shows the account you are signed in as, so check that it is the one that holds the shop. Leave Also allow ChatGPT to make changes ticked if you want to queue feed audits from a chat, or untick it for a read-only connection.

  4. 4

    Use it in a chat

    Pick GSC Wizard from the tools in the composer, or name it in your message. ChatGPT asks before it calls a tool that can make changes.

There is no API-key field, and that is expected. ChatGPT cannot send a fixed key to a remote MCP server, so it always signs in with OAuth. Keys are for the Responses API below and for config-file clients.

Check that it works

Ask something you can compare with the app: "List my Merchant Center accounts and their sites, then show free listing clicks for example.com over the last 28 days, with the dates." The clicks should match the Organic Shopping report for those dates. If ChatGPT answers with a notConfigured note instead, the note names the reason, which is usually a missing link on the property in the app.

Option 2 - developers

Use the OpenAI Responses API

For scripts, a scheduled shop report or your own agent, the Responses API takes the server as a remote MCP tool with an API key in the header. The allowed_tools list keeps the model to the shopping tools, which saves context on every turn.

{
  "type": "mcp",
  "server_label": "gsc-wizard",
  "server_url": "https://mcp.gscwizard.com/mcp",
  "headers": { "Authorization": "Bearer gscw_live_..." },
  "allowed_tools": [
    "list_sites",
    "get_merchant_listings_performance",
    "list_gmc_accounts",
    "get_organic_shopping_performance",
    "get_product_listing_status",
    "get_gmc_account_health",
    "get_gmc_data_sources",
    "get_feed_audit_results",
    "get_gmc_title_hygiene",
    "get_gmc_competitors",
    "get_gmc_pricing_insights",
    "get_gmc_best_sellers",
    "query_gmc_report"
  ],
  "require_approval": "never"
}

Create the key under Account → API keys in GSC Wizard. Pick a read-only key unless the job has to queue audits, and add run_feed_audit to the list only for such a job, with a read-and-write key. Keep the key out of your source code.

The shopping tools

What ChatGPT can read from Merchant Center

The shopping tools work for every subscriber, on every plan and during the trial. They return analysed answers, so ChatGPT reads finished figures instead of adding up thousands of product rows.

Performance

Free listing clicks, impressions and conversions with the top offers, grouped by brand, Google category or your own product type, next to the merchant listings Search Console reports for web Search.

Product and feed health

Disapproved and limited products sorted by Google's own click-potential rank, account issues and suspensions, the processing state of every feed, title hygiene, and a feed audit with a Feed Score from 0 to 100.

Market insights

Competitor visibility per country and category, your prices against the market benchmark with Google's suggested sale price, and Google's best sellers with the ranked products you do not stock.

Every tool, its inputs and how to read its numbers are in the shopping tools reference.

Plain language in, finished answers out

What you can ask once it is connected

Ask in your own words, and name the property when you have more than one shop.

"Which of my products are disapproved or limited, and which fixes would win back the most clicks?" "How did free listing clicks change per brand over the last 28 days?" "Where am I more expensive than the market?" "Which of Google's best sellers in my category in Germany do I not stock yet?" "Did any of my feeds fail to process this week?" "Who do I compete with for running shoes in the UK?" "Make me a one-page shop report for last month"
Same connector, other assistants

Using a different AI tool?

One Merchant Center link in GSC Wizard serves every assistant you connect.

See also the Merchant Center MCP overview, the GA4 MCP for ecommerce revenue, and the Merchant Center MCP playbook with a weekly feed triage and a monthly shop report.

Frequently asked questions

Does ChatGPT connect to Google Merchant Center natively?

No. ChatGPT has no built-in Merchant Center integration. It reaches your shop through an MCP connector: add the GSC Wizard MCP server at https://mcp.gscwizard.com/mcp and ChatGPT can read the Merchant Center accounts you linked to your sites in GSC Wizard.

Why use the connector instead of the GSC Wizard app in ChatGPT?

A directory app offers the tools of its last reviewed version, so it can miss Merchant Center tools the server already has. A developer-mode connector reads the server's tool list as it is today, so every shopping tool is there, including the newest ones. For Search Console questions alone, the ChatGPT app works well.

Which ChatGPT plans can add the connector?

Developer mode, which custom MCP connectors need, is available on ChatGPT Plus, Pro, Business, Enterprise and Edu, and not on Free or Go. On a work account, the workspace admin may have to allow developer mode and custom apps first.

Can the assistant change my products or my feed?

No. Google offers no read-only Merchant Center permission, so its consent screen asks to manage your product listings, but GSC Wizard only reads your reports and catalog and never edits products or your feed. The one tool that changes anything, run_feed_audit, queues an audit inside GSC Wizard that crawls your product pages and writes nothing to Merchant Center. Untick the option to allow changes when you approve the connection and even that is off.

Why don't Merchant Center clicks match the merchant listings in Search Console?

They count different surfaces. Search Console merchant listings count enriched product results in web Search only, for your own URLs, while Merchant Center free listings cover the Shopping tab, Search, Images, Lens, YouTube and Maps. Merchant Center clicks are therefore usually higher and the two never reconcile, and the tools say so in their descriptions, so the assistant compares the two trends instead of adding the totals.

What does it cost?

MCP access, including every shopping tool, is part of every GSC Wizard plan, from €17 a month, and every new account starts with a 7-day free trial. Once a trial ends without a subscription, the tools stop answering until you subscribe. See pricing.

Ask ChatGPT about your real Merchant Center data

Link your shop in GSC Wizard, add one connector URL and sign in. ChatGPT then reads your free listings, product issues, prices and feeds, with nothing to export.

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