Braintree Docs

PayPal Enterprise Payments, formerly Braintree, provides tokenization and payment processing for transactions initiated by AI agents. Merchants receive constrained payment tokens and continue using standard charging, settlement, refund, chargeback, risk, and compliance workflows; the tokens can be limited by merchant, amount, currency, and expiry so card details remain outside the agent and the merchant's PCI scope. The service supports agentic-commerce integrations including Instant Checkout in ChatGPT through the Agentic Commerce Protocol, Google AI Mode through the Universal Commerce Protocol and Google Pay, and MCP apps that either provide an in-agent checkout interface or hand off to an external checkout page.

**Stripe** is a financial technology company that provides online payment processing software and APIs for businesses of all sizes. Founded in 2010 by Irish brothers Patrick and John Collison, it lets companies accept payments, manage subscriptions and billing, handle tax compliance, prevent fraud, and access treasury and banking tools. Headquartered in South San Francisco and Dublin, it remains privately held.

PaySimple is a payment-processing service used for weekly client billing. The cited video contrasts it with Stripe, saying that PaySimple did not freeze the user's funds.

PayPal is an online payments platform operated by PayPal Holdings, Inc. that enables individuals and businesses to send and receive money, make and receive online payments, and manage transactions across currencies. It offers consumer accounts, merchant payment solutions, and related financial services globally.

PayPal's agentic commerce services help merchants create AI-powered shopping experiences in which customers use everyday language to discover products, manage carts, and complete purchases across online stores and AI platforms. The services include Agent Ready, which lets merchants accept payments through AI assistants using existing PayPal tools, and Store Sync, which connects product catalogs and cart operations to AI shopping assistants and existing order-management systems. PayPal also describes catalog enrichment as a way to make merchant product data more suitable for agent discovery and recommendations; its experiments found that targeted enrichment helped, while unstructured boilerplate could dilute the signal and increase hallucinations. Merchants can connect product listings through PayPal partners and use one integration to reach multiple AI shopping platforms. Access requires submitting a form to PayPal's AI team, which then guides onboarding.