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Product data and marketplaces

Connect Google Merchant Center (Merchant API) to Hypamoon

Yes, with one catch. Google Merchant Center (Merchant API) has an open API that you can use yourself, but it signs in with OAuth only, and that takes more work in a Hypamoon adapter today.

Open

The check

Three questions about the API of Google Merchant Center (Merchant API), answered from its own docs.

Public API docs
Yes. Read the docs
A key you create yourself
Yes. You create a service account in your own Google Cloud project, download its key and add it as a user in Merchant Center. developers.google.com
Versions or a changelog
Yes. Versions v1 and v1alpha with dated release notes; v1beta was switched off. developers.google.com
How it signs in
OAuth 2.0, or a service account from your own Google Cloud project with access to your Merchant Center account; API keys are not supported.
Webhooks
Yes. It can tell your app when something changes. developers.google.com
Hosting
Cloud

Your own product feed desk on Google Merchant Center.

  • Products, statuses, issues and stock, straight from the Merchant API.
  • AI that reads disapprovals and proposes the fix, with you approving every change.
  • A weekly email with products that lost their listing.

Ask your chat

Answers straight from your Google Merchant Center (Merchant API) data, in Claude or another chat with the full Hypamoon connection.

  • Which products are disapproved right now, and for what reason?
  • Which products have a different price in Merchant Center than in my shop?

On a schedule

An agent checks Google Merchant Center (Merchant API) every 15 minutes and decides what happens next.

  1. Every 15 minutes

    Products with an issue in Merchant Center.

    AI decides

    AI reads the issue and the product data, and proposes the change, such as a missing GTIN or a wrong price.

    Then

    The product is updated in Merchant Center.

    AI proposes, you approve

Add Hypamoon

Text messages, email, phone, payments and agents run in the same project as the adapter.

  • Agent on a schedule

    Every Monday, an agent emails you the products that lost their listing last week and why.

Google Merchant Center (Merchant API) stays the core: your chat builds the rest on its API, as an adapter plus an app and agents in your Hypamoon project. Reading starts after you click Allow in the portal. Every change an agent or a chat makes in Google Merchant Center (Merchant API) waits for your approval, one call at a time. How adapters work

Good to know

  • Google Merchant Center (Merchant API) signs in with OAuth or signed requests only, with tokens that expire. The Hypamoon vault holds a fixed key today, so an adapter for Google Merchant Center (Merchant API) takes more work: ask your chat to check this first.
  • You register as a developer once per Google Cloud project. The Merchant API replaces the Content API for Shopping.

Try it in your chat

Fill in what to read and write, and send it.

Say this in your chat

Build the Hypamoon recipe build-an-adapter for Google Merchant Center (Merchant API). API docs: https://developers.google.com/merchant/api/guides/quickstart. Read: [what]. Write: [what, or nothing].

Open in Claude

In Claude, or another chat with the full Hypamoon connection; adapters are not in ChatGPT yet. You paste the key in the portal, never in the chat. The full recipe

Sources

Checked on 7 November 2026.

Google Merchant Center (Merchant API) is a name of its owner, used here only to describe the software. This page is not an official integration and Hypamoon has no partnership with Google Merchant Center (Merchant API). Found something that changed? Tell us at support.

More in product data and marketplaces

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Tool not listed? Ask the chat to check its API.

The same three checks work for any software. Your chat reads the vendor's own docs and tells you what it found.

Say this in your chat

Check if [software] has an open API that a Hypamoon adapter can use: public API docs, a key or token I can create myself without asking the vendor, and versions or a changelog. Link the pages you used.

Open in Claude Open in ChatGPT

Fill in the name of your software. Checking needs no connection to Hypamoon.

Ready to connect Google Merchant Center (Merchant API)?

Connect your chat once, then ask it to build the adapter.

Start free

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