Khatabook

Khatabook offers a digital ledger and business management platform that includes features for managing credit/debit transactions, sending payment reminders, and generating business reports. While it doesn't explicitly state 'credit card processing' or 'developer APIs', its core functionality revolves around facilitating payment collection and managing financial transactions for businesses, which aligns with the broader 'payment processing' and 'online payments' features. The 'Auto Reminders' feature supports recurring billing, and 'Invoice Creation' is explicitly mentioned. The platform is available on both desktop and mobile, indicating mobile app management and reporting capabilities.