Open banking, a regulatory requirement in the European Union, is gaining traction in other regions of the world. Companies that provide open banking services send and receive payment information or account data to and from banks, usually via APIs. If they deal only in data services, they are called an account information service provider (AISP). Those that support payments are called a payment initiation service provider (PISP). Tink, an open banking company acquired by Visa in March of this year, has built proprietary API-based connectivity to 3,500 banks in Europe through which it can del...