Google has published a new help page explaining how to onboard to the Universal Commerce Protocol in Merchant Center. This new open standard enables agentic commerce and supports checkout directly from product listings in AI Mode in Search and Gemini.
To participate, merchants must complete the technical implementation first, then submit an interest form and wait for approval. Once selected, they can access onboarding in Merchant Center, including a sandbox environment to validate integration, identity linking, and checkout APIs.
The feature is rolling out gradually in the U.S., and a dedicated UCP integration tab will appear in Merchant Center accounts over the coming months.
Read the official help page here: How to onboard to the Universal Commerce Protocol in Merchant Center.
