CartAI

CartAI

CartAI is a developer-first API that lets AI agents complete real transactions on live merchant websites — checkout, subscriptions, invoice and bill payment, order submission — with no merchant-side integration. Rather than only finding products, CartAI clears the purchase: one API, plus an MCP server and an embeddable hosted cart, bundle four products — Catalog for product search and live pricing, Checkouts for clearing and tracking an order to confirmation, Payments for compliant card handling on official Visa and Mastercard agent rails, and Monetization for affiliate attribution. CartAI is built to cooperate with bot-detection and signed-identity systems rather than evade them, and its workflows are retry-safe with webhook state notifications.

Production credibility: CartAI is built by Manil Uppal, a repeat founder who, per third-party sources, previously built and sold Lash Delivery (acquired by H-E-B) and Delivery Solutions (acquired by UPS) — a credible track record. The company says it has cleared production transactions at merchants including Best Buy, Newegg, and Ulta Beauty; those are vendor claims and unverified. Its MCP server is open source under Apache 2.0, and its docs and developer portal are public. This is dual-use software: it programmatically executes payments and checkouts on third-party sites, so it is catalogued factually here — the design point is that it cooperates with bot detection and uses official card-network agent rails rather than scraping.

Key Features

• A single API to complete checkout on any live merchant site with no merchant onboarding
• An MCP server for agents in Claude, Cursor, and VS Code, open source under Apache 2.0
• Compliant card intake and vaulting on official Visa and Mastercard agent rails
• Catalog search with variants, live pricing, and checkout estimates
• Idempotent, retry-safe workflow primitives with conditional branching
• Cooperation with bot-detection and signed-identity systems rather than evasion
• Webhook notifications on state changes and normalized order tracking to confirmation
• White-label hosted cart theming and affiliate commission attribution

Ideal Use Case

CartAI fits developers building AI shopping agents, copilots, and publisher or affiliate experiences, as well as B2B vendor-portal and bill-pay automations, who need to actually complete a transaction rather than only surface a product link. It suits platforms that want checkout-as-a-service across many merchants without integrating each one. It is not a consumer app, and its payment-executing nature means it is a poor fit for anyone without the trust and controls required to let software transact on their behalf.

How CartAI differentiates

Where catalog and affiliate APIs stop at product data, CartAI executes the full checkout on arbitrary merchant sites and takes payment on official Visa and Mastercard agent rails. Its stated stance — cooperate with bot detection using signed agent identity rather than evade it — separates it from scraper-style automation, and its repeat-founder pedigree in commerce logistics is the credibility behind an agentic-commerce product arriving as those payment rails go live.

FAQ

Q: What does CartAI do? A: CartAI is an API that lets AI agents complete real transactions — checkout, subscriptions, bill pay, order submission — on live merchant websites, without the merchant having to integrate anything.

Q: How does it handle payments? A: Through compliant card intake and vaulting on official Visa and Mastercard agent rails, with hosted payment sessions, rather than storing raw card data in the agent.

Q: Is any of it open source? A: Yes. CartAI's MCP server is open source under Apache 2.0, so agents in Claude, Cursor, and VS Code can integrate with it directly.

Q: Does CartAI evade bot detection? A: The company's stated design is to cooperate with bot-detection and signed-identity systems using agent identity, not to evade them, and to use official card-network agent rails.

Q: What does it cost? A: CartAI is a developer, usage-based API; specific pricing is not published on the site and is arranged through its developer portal or by contacting the company.

tl;dr

CartAI is a developer API that lets AI agents complete real checkouts — orders, subscriptions, and bill pay — on any live merchant site with no merchant integration, using official Visa and Mastercard agent rails and an Apache-2.0 MCP server. It is built by a repeat commerce founder; merchant traction claims are the vendor's own. This is dual-use payment-executing software, catalogued factually. Best for developers building agentic-commerce experiences.