Zilpy is a web service that can provide a fairly accurate estimate for rental prices given a property address, using data mining algorithms that consider crime rate, school ratings, walkability, demographics, and comparable neighborhood properties. Users can then utilize this information when determining target property rents. The property listings function enables users to view updated properties from all syndicated sources covering 98.5% of the US population. Currently accessible to Zilpy developer account holders, the Zilpy API documentation outlines how to programmatically retrieve estimated market rental prices for integration within 3rd party applications. Developers can make HTTP GET requests to query properties, create reports for property IDs, return rent reports, and more. Developers can visit Zilpy to create a developer account to test the API functions.