Being “underbanked” doesn’t mean that someone lacks access to financial services. Instead, it often means they don’t have traditional bank accounts or credit cards. But in markets like Indonesia, many still use digital wallets or e-commerce platforms, creating alternative sources of user data that can help them secure working capital and other financial tools. Finantier, a Singapore-based open finance startup, wants to streamline that data with a single API that gives financial services access to user data, with their consent. It also includes machine-learning-based analytics to enable credit scoring and…