Guide
What to do if you are on none of the agent surfaces
In short
Start with the free paths: a clean Merchant Center feed for Google and Microsoft, a fast web checkout for ChatGPT referrals, and an open door for identified agents at your CDN. Then pick one checkout protocol through your platform or processor.
What the sources say
- OpenAI charges no fee on purchases that start in ChatGPT and finish on the merchant site. chatgpt.com, read 4 Nov 2026.
- Copilot Checkout needs a Microsoft Merchant Center account with a UCP-compliant feed or a trusted partner (PayPal, Shopify, Stripe). about.ads.microsoft.com, read 4 Nov 2026.
- Google UCP checkout is available to select merchants through an interest form. support.google.com, read 4 Nov 2026.
- BigCommerce lists the Google steps: Merchant Center in good standing, native_commerce on eligible SKUs, a PSP that accepts Google Pay tokens, the interest form, sandbox validation. bigcommerce.com, read 4 Nov 2026.
- PayPal Agent Ready and Store Sync are available by request form. developer.paypal.com, read 4 Nov 2026.
- Shopify's Agentic plan lets brands without a Shopify store list in Shopify Catalog with no monthly fee. shopify.com, read 4 Nov 2026.
Profiles named in this guide
Read next
Sources
- Power product discovery in ChatGPT (merchants page), read 4 Nov 2026
- Agentic Commerce, Microsoft Advertising, read 4 Nov 2026
- Merchant Center help: UCP-powered checkout, read 4 Nov 2026
- bigcommerce.com/articles/ecommerce/google-agentic-checkout/, read 4 Nov 2026
- developer.paypal.com/agentic-commerce-services/about, read 4 Nov 2026
- shopify.com/agentic-plan, read 4 Nov 2026
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