What is the ruling on working in the design and operation of online stores, payment gateways, identity verification systems, and credit card management systems, knowing that these systems may deal with usurious banks or calculate usurious interest?

It is permissible to design and operate e-commerce stores and payment gateways, provided that their work and the goods they offer are Islamically permissible, and that they are not affiliated with usurious entities. However, an identity verification system that works for usurious banks, or a credit card management system that calculates usurious interest, are not permissible to design or operate, due to the Almighty’s saying: [And cooperate in righteousness and piety, but do not cooperate in sin and aggression].