PAYMILL is a payment gateway service that facilitates seamless online transactions for businesses of all sizes. Operating in the fintech market, PAYMILL provides an easy-to-integrate API that allows merchants to set up a functioning checkout system within minutes. The company serves a diverse range of clients, from small startups to large enterprises, offering them the ability to accept payments through various methods, including credit cards and PayPal. PAYMILL's business model is based on charging transaction fees, which means it earns money every time a customer makes a payment through its platform. The company focuses on providing a robust, secure, and user-friendly payment solution that helps businesses streamline their payment processes and enhance customer experience.

Keywords: payment gateway, online transactions, API integration, PayPal support, fintech, merchants, credit cards, transaction fees, secure payments, user-friendly.