Is there a bank as a third-party payment platform?

Yes, online banking is a third-party payment platform made by banks.

note:

Online banking or electronic banking has two meanings: one is the concept of institution, which refers to banks that operate business through information networks; The other is the concept of business, which refers to the financial services provided by banks through information networks, including traditional banking services and emerging services brought by the application of information technology.

Online banking, also known as online banking and online banking, means that banks provide customers with traditional services such as account opening, inquiry, reconciliation, inter-bank transfer, credit, online securities, investment and wealth management through the Internet, so that customers can safely and conveniently manage current and fixed deposits, checks, credit cards and personal investments without leaving home. It can be said that online banking is a virtual banking counter on the Internet.

Online banking is also called "3A Bank" because it is not limited by time and space, and can provide financial services to customers anytime, anywhere and in any way.