How do I connect Google Merchant Center to Gemini?

In the Gemini app on a personal Google Account, open Settings, then Connected Apps, choose Add a custom app and paste https://mcp.paidsync.ai/mcp. Gemini CLI, Antigravity and Gemini Enterprise take the same endpoint, and step 1 covers each. Sign in to PaidSync and press Approve, then ask Gemini to connect your Google Merchant Center account. No API key is needed. Full steps are above.

Is PaidSync free to use with Gemini?

Yes. The free plan gives you 15 tasks per month at $0. Pro starts at $99/month for 600 tasks. Team plans start at $249/month for 5 seats.

What Merchant Center data can Gemini access?

Gemini can query product listings, disapproval reasons, feed status, account-level issues, and Shopping performance data. It can list all disapproved products, filter by disapproval type, and surface affected item IDs.

Can Gemini fix product disapprovals in Merchant Center?

Gemini can identify all disapprovals with item IDs and reasons. For bulk attribute fixes, PaidSync supports write operations. Check each change before you tell Gemini to apply it.

Does PaidSync also connect Google Ads to Gemini?

Yes. PaidSync connects both Merchant Center and Google Ads in the same tool set. Gemini can compare feed health to Shopping campaign spend in one conversation, showing which disapprovals are blocking live ad delivery.

Does the same PaidSync connection work in other assistants?

Yes. PaidSync is one endpoint, https://mcp.paidsync.ai/mcp, with OAuth sign-in, and the same login works in Claude, Claude Code, ChatGPT, Perplexity, Microsoft Copilot through Copilot Studio, Cursor and Windsurf. Set up PaidSync once and use it from any of them.

What does PaidSync cost with Gemini?

PaidSync has its own pricing: the free plan is $0 for 15 tasks a month with no card, and Pro starts at $99 a month. Which Gemini surface you can use depends on your Google account, as step 1 explains.

Will Gemini make changes to my Merchant Center account without asking?

That is set in Gemini. Check each change before you tell Gemini to apply it. PaidSync's Merchant Center writes have no dry run and apply on the first call, and product and link deletes need no confirm flag, so keep that prompt on for write tools.

Connect Google Merchant Center to Gemini in 2 Minutes

How to connect Merchant Center to Gemini with PaidSync

PaidSync joins Gemini as a custom app, or through Gemini CLI, Antigravity or Gemini Enterprise. No API key is needed, because Gemini connects with a PaidSync sign-in (OAuth).

Before you start

Pick your Gemini surface in step 1. The Gemini app takes PaidSync as a custom app on a personal Google Account (18 or older, in the US, in English, with Keep Activity on). Gemini CLI, Antigravity and Gemini Enterprise cover work accounts and terminals.
Signing in with Google? There is no separate sign-up. You pick Continue with Google in step 2, and your free PaidSync account (15 tasks a month, no credit card) is created when you press Approve.
Prefer an email and password? Create the account at paidsync.ai/signup first. Email sign-up happens on the PaidSync website, not in Gemini.
Know which Google login can open your Merchant Center account. You use it in step 3.

Add PaidSync to Gemini

Gemini app, personal account. Open gemini.google.com, go to Settings, then Connected Apps (if you do not see it, open Personal Intelligence first), and under Custom apps choose Add a custom app. Paste the PaidSync server URL and click Next. PaidSync registers itself, so there is no API key to copy and nothing to fill in under Advanced features.

https://mcp.paidsync.ai/mcp

Add it on the web once and it works in the Gemini mobile app too. Google limits custom apps to personal Google accounts, age 18 and over, in the US, in English, with Keep Activity turned on. A work or school account cannot add them, so use Gemini Enterprise below instead.

Gemini CLI. Run the command, then type /mcp auth paidsync and sign in with your PaidSync login. Google replaced Gemini CLI with Antigravity CLI for unpaid-tier and Google One users on 18 June 2026, so those accounts use Antigravity below.

gemini mcp add --transport http paidsync https://mcp.paidsync.ai/mcp

Gemini Code Assist agent mode in VS Code reads the same settings file as Gemini CLI. Add this to ~/.gemini/settings.json:

{
  "mcpServers": {
    "paidsync": { "httpUrl": "https://mcp.paidsync.ai/mcp" }
  }
}

Antigravity uses a different key. Open the agent panel menu, choose MCP Servers, then Manage MCP Servers and View raw config, or edit ~/.gemini/config/mcp_config.json, and add the server with serverUrl. Antigravity signs in by dynamic client registration on its own:

{
  "mcpServers": {
    "paidsync": { "serverUrl": "https://mcp.paidsync.ai/mcp" }
  }
}

Gemini Enterprise, Business edition. A team admin adds PaidSync under Settings and help, then Manage team, then Connected apps, then Add MCP Server. PaidSync serves the Streamable HTTP transport Gemini requires and OAuth 2.0 at https://api.paidsync.ai/authorize and https://api.paidsync.ai/token. Email support@paidsync.ai for the client credentials that form asks for.

Sign in to PaidSync and press Approve

The PaidSync sign-in screen opens. Pick Continue with Google, or sign in with your PaidSync email and password. A PaidSync screen then asks whether to allow access to your ad accounts via PaidSync. Press Approve and PaidSync is ready in Gemini.

New to PaidSync and signing in with Google? Your free account (15 tasks a month, no credit card) is created when you press Approve.

Connect your Merchant Center account and ask Gemini

In a chat, ask: "Connect my Merchant Center." Gemini replies with a link that opens Google's own sign-in and consent screen. Sign in with the Google account that has access to your Merchant Center and approve access. PaidSync asks Google for the content scope, which covers reads and the product and feed changes you ask for. PaidSync never sees your Google password.

Come back and ask: "List my Merchant Center accounts." Gemini uses list_merchant_accounts to show them, sub-accounts under a multi-client account included, and set_active_merchant_account to pick the one you name. Connecting accounts and picking one uses none of your tasks. Then try: "Which issues are disapproving the most products?" You can also connect Merchant Center from the PaidSync dashboard instead. Both routes use the same PaidSync login, so Gemini sees the account either way.

The Native MCP Angle

Google runs an official Merchant Center MCP server in alpha since May 2026, limited to reads and low-risk changes such as creating data sources (13 tools). PaidSync gives you 16 Merchant Center tools next to your Google Ads Shopping campaigns in one chat, and can insert, update and delete products, add supplemental feeds and link Google Ads when you ask. PaidSync talks to Google's Merchant API directly, returning structured product data that Gemini can reason over and act on.

That means Gemini can not only list your disapprovals, it can tell you which disapproved products are currently blocking impressions in your Shopping campaigns, how many SKUs are affected by each policy reason, and what the fix is, all in a single conversation.

What Gemini Can Do with Merchant Center

Disapproval audit. Gemini lists all products with active disapprovals, grouped by reason code, with the item IDs and titles affected. It tells you how many impressions are blocked per reason.
Feed health check. Gemini returns the status of all your product feeds including pending, active, and error counts. It flags feeds with more than 5% item errors.
Product attribute review. Ask Gemini to check products missing required attributes like GTIN, brand, or description length. It returns a count and sample item list.
Shopping campaign correlation. With Google Ads also connected, Gemini can show you which disapproved products map to active Shopping ad groups, calculating the blocked spend per day.
Account-level policy status. Gemini checks whether your account has any active warnings or suspensions and surfaces the exact policy text from Merchant Center.

Merchant Center prompts to try in Gemini

Each prompt runs on the PaidSync tools named after it and uses one or more of your tasks. Prompt 8 changes your account. The others read and change nothing.

"Which issues are disapproving the most products in my Merchant Center, and how do I fix each one?" Runs list_product_issues, which returns each issue's code, severity, destination, country, number of affected products and Google's fix instructions.
"How many products have a disapproval or a warning right now, split by free listings and Shopping ads?" Runs list_product_issues.
"Is my Merchant Center account at risk? Show account-level issues and whether Google Ads is linked." Runs get_merchant_account_status.
"List every Google Ads account linked to my Merchant Center." Runs merchant_list_links.
"Which products got impressions but no clicks in the last 28 days?" Runs get_product_performance, which returns clicks, impressions, CTR, conversions and conversion value for up to 1,000 products. Merchant Center reports run one to two days behind.
"List my products marked out of stock, with their price." Runs list_products, which returns each product's title, brand, price, availability, condition and feed label.
"Show my Merchant Center data sources and tell me which one is the primary feed." Runs merchant_list_data_sources.
"Create a supplemental feed called Holiday Sale Prices for my US products in English." Runs merchant_create_supplemental_feed. Merchant Center changes apply on the first call with no preview, so check each change before you apply it.

Troubleshooting Merchant Center in Gemini

The sign-in fails. Sign in to PaidSync the way you signed up, with Continue with Google or with your PaidSync email and password. Email users without an account create one at paidsync.ai/signup first, then sign in to PaidSync again in Gemini. If Google's own consent screen fails, ask Gemini "Connect my Merchant Center" again for a fresh link.
Gemini picked the wrong account. Ask Gemini to list your Merchant Center accounts and switch to the one you mean, by name or ID. It runs list_merchant_accounts, then set_active_merchant_account, and every Merchant Center request after that goes to the account you picked. Switching uses none of your tasks.
An account is not listed, or requests fail. PaidSync lists the Merchant Center accounts your connected Google login can open, sub-accounts included. Ask an admin of the Merchant Center account to give that login access, then list your accounts again. The first request to an account registers PaidSync with it, which needs admin access and takes about 5 minutes to take effect. Connected with the wrong Google login? Disconnect it in the PaidSync dashboard and connect again with the login that has access.
Gemini says it has no Merchant Center tool. PaidSync shows Gemini a short starter list of tools to keep the chat light. Ask Gemini to call paidsync_context first. It returns your connected platforms and the full tool list, Merchant Center included, and Gemini then runs those tools through paidsync_exec. If Gemini does not use PaidSync at all, check that the connector is added and enabled.