UCP
Connected services can discover functions, catalog support, checkout, fulfillment, and identity signals.
Shop tools for product data, checkout, payments, and order updates.
Connect new buying channels
Connect new buying channels with UCP discovery, ACP checkout, MCP tools, and hosted buyer approval.
ACP
OpenAI-style integrations can complete checkout through the ACP surface.
MCP
Clients can call catalog search and lookup tools directly.