The Neo4j BI Connector is a tool that enables direct access to Neo4j graph data from business intelligence (BI) tools, such as Tableau and Looker. It allows users to avoid coding and custom scripting, while also providing connected data results. The connector can be used for various use cases, including money laundering detection, business impact planning, network and IT operations, product recommendations, and building a promotional discounting program. By using the Neo4j BI Connector, businesses can gain insights into their complex data structures and make informed decisions.