The query endpoint is a feature in a CRM system that allows users to retrieve data from any object in the system. It provides a flexible and powerful way to filter and retrieve data, allowing users to specify the data they need and receive it in a format that is easy to work with. The endpoint can receive complex queries, allowing users to filter the data based on multiple criteria, making it a versatile tool for a wide range of use cases. This allows users to get the data they need quickly and easily, without the need for manual data retrieval or complex data management processes.