In the context of modern financial services apps, customers demand faster and more personalized experiences that require organizations to reconsider their data and technology leverage. To address this, companies can use a GraphOS-powered supergraph to aggregate customer data from multiple sources, providing a unified interface for client applications. This approach allows developers to retrieve only necessary data with GraphQL's flexible querying capabilities, reducing requests and improving performance. Smart resolvers in GraphQL servers can also provide personalized results by retrieving data from various sources based on field relationships and context objects. By adopting this technology, financial services organizations can power their modern apps with a scalable, secure, and efficient solution.