GraphQL integration in ToolJet enables developers to efficiently query and manipulate data from multiple sources through a single API endpoint. This powerful integration streamlines data fetching for complex internal tools, such as real-time dashboards, customer support portals, and inventory management systems. By leveraging GraphQL's flexibility, ToolJet users can reduce API calls, minimize over-fetching, and create more responsive applications. This integration is particularly valuable for developers working with microservices architectures or diverse data sources, allowing them to build robust, scalable internal tools with less code and improved performance.