CartAI

CartAI is a platform for programmatic checkout: a single API that adds product discovery, checkout and payments to an experience a company already provides its customers, such as an AI agent, shopping copilot or editorial page. It is built for developers who need transactions to actually clear across many merchants, rather than general browser automation or only the identity and payment rails that other agentic-commerce tools provide.

A developer calls one API to search products across merchants, pull live pricing and variant details, get a checkout-cost estimate before any cart exists, and then clear the order on the live merchant surface, tracked through normalized orders and webhooks. The same primitive can be integrated three ways: directly through the CartAI API, through an MCP server that plugs into an existing AI agent such as Claude Desktop or Cursor, or through a drop-in Hosted Cart component for a surface that never had checkout.

Payments are handled through hosted, PCI-compliant sessions on Visa Intelligent Commerce or Mastercard Agent Pay, so card data never touches a developer's backend or PCI scope; a sessionId from that payment step is then passed into a checkout task. CartAI also tracks affiliate commissions automatically on products it surfaces and checkouts it clears, across more than 70,000 brands, and shares that revenue back to the business that surfaced the product.

CartAI's use cases span three modes: automating existing manual processes such as e-commerce checkout, subscription changes or invoice payment; embedding transactions into new AI-native commerce apps, copilots or marketplaces; and enabling transactions on surfaces that never had them, such as editorial pages, recommendation feeds or creator platforms. Companies get started by talking to CartAI's sales team or creating an account.

Use cases

• Letting a shopping copilot actually complete a purchase
• Making an editorial or recommendation page directly shoppable
• Automating subscription sign-up, plan changes and cancellations
• Paying vendor or utility invoices through a portal automatically