Stripe is an online payment processing service that allows both private individuals and businesses to accept payments over the Internet. Connect is a tool that allows Stripe customers that operate marketplaces or payment platforms to provide their users with seamless payment processing. In addition to general payment options in 100+ currencies, it also supports Alipay, Apple Pay and Bitcoin. Stripe Checkout offers customizable payment workflow that is responsive both over desktop and mobile sites along with Stripe.js for greater controls. It also features 'Teams' for collaborative access, 'Webhooks' for account events sync and real-time transaction info that can be exported to CSV, QuickBooks, or other formats. Along with mobile apps for Android and iOS, it provides integrations with over 300+ online services.
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