Killbill - Open-Source Subscription Billing and Payment Platform
MyBrocard - Brocard allows you to create an unlimited number of virtual cards for paying for advertising and other online payments, manage a team of buyers, choose from 20+ bins for various tasks, and enjoy convenient API for integrations.
Subscription Billing - Sales Order Processing that automates and manages cyclical and subscription based billings by generating invoices, quotes or orders in Dynamics GP.
PST.NET - Virtual payment cards for online shopping and advertising
Tossy - Create subscription based memberships & donations for India
Coinramp - The Coinramp Card lets you spend over 10+ cryptocurrencies like cash, online, in-stores and ATM withdrawals. Available in 100+ countries, no ID needed. Anonymous Crypto Cards