While the provided client integration guide focuses extensively on the discovery, search, and cart management phases of the e-commerce journey, it does not provide specific implementation details for final payment processing.
The documentation notes that the cart management system provides "rich functionality for managing purchases" and that the goal of cart persistence is to allow a user to "complete the purchase" on their device of choice.
The guide alludes to this as a potential future capability, noting that through the tool discovery mechanism, your agent might "connect one day to find... entirely new tools for order management".
Based on the provided document, specific tools and integration patterns for handling credit cards, processing payments, or managing post-payment order fulfillment are not detailed. Your agent's implementation would need to handle the handoff from the MCIP-managed cart to a separate payment gateway or checkout system.