The Boundaries-IO API is a powerful tool for creating interactive maps with geographical coordinates, allowing users to visualize and interact with geoJSON data in various applications. To connect to the API, one can use RapidAPI's interface, which provides free access to basic usage plans. The API offers endpoints for querying locations, generating zip codes for regions, and visualizing GeoJSON data. By using Python and Jupyter Notebook, developers can create a geofencing app that integrates with the Boundaries-IO API, allowing users to view interactive maps and highlights on specific regions or areas. The example code demonstrates how to retrieve zip codes for Salt Lake City, visualize the data in Jupyter Notebook, and use ipyleaflet to display an interactive map with GeoJSON objects.