Braintree is a payment platform for businesses that covers the whole checkout. Through one integration, online shops and apps can accept credit and debit cards, digital wallets such as Apple Pay and Google Pay, PayPal, Venmo (US only) and local payment methods. Developers use Drop-in UI, Hosted Fields and SDKs, and the platform adds a vault for customer and payment data, 3D Secure 2 and fraud management. It is a service hosted by PayPal. PayPal now presents Braintree as PayPal Enterprise Payments.
Braintree is a subsidiary of PayPal, which acquired the company in 2013; PayPal Holdings is headquartered in San Jose, California, and so falls under US jurisdiction. According to its privacy statement, PayPal and its service providers store and process personal data in the United States and elsewhere in the world. PayPal documents no EU hosting option. For European merchants this means payment and customer data ends up with a US provider. They should therefore review the data protection addendum, the transfer mechanisms and the split of roles between controller and processor with care.