Braintree is a PayPal company that allows online businesses to process card payments by providing a merchant account, payment gateway, recurring billing and credit card storage. It offers virtually automatic PCI compliance that allows cards to be recharged or refunded without info entry and periodic billing support. Its ‘vault’ system provides great data portability keeping your payment information even if you decide to switch providers. Braintree’s Venmo payments allows you to pay your market providers using their email addresses or mobile phone numbers. The customization extends to failed transaction management, pricing plans, discounts, promos, push notifications, rewards and add-ons, automatically prorated subscriptions, as well as search/reporting capabilities.
Yes, the PayPals Rest API can be used by Merchant in 202 countries. It covers most of the countries and to be sure you may look up for your country here: https://www.paypal.com/us/webapps/mpp/country-worldwidePayment Gateways (US) PayPal