BTCPay Server is a self-hosted open source Bitcoin payment processor. Start receiving bitcoin payments for your events and bookings.

HitPay's Cal.com payment integration combines powerful scheduling with seamless local payment acceptance. Our online scheduling software integration is built for customers in APAC, supporting their favorite e-wallets and banking apps.

The mock payment app for tests

Paypal payment app by Cal.com

A Saas company a payment processing software, and application programming interfaces for e-commerce websites and mobile applications.