Constellation Data Labs API Documentation

Documentation for the Constellation Data Labs property data APIs.

Insights API

The Insights API provides access to property data for US properties, including assessor, recorder deeds, mortgage, foreclosure, demographics, schools, neighborhoods, valuation and boundaries. It follows the OData  protocol with custom querying options.

• Authentication
• Basic Requests
• Data Dictionaries

GraphQL API

The GraphQL API combines the RESO Listings (MLS data) with the Insights public records data in a single query.

• Authentication
• Base properties
• RESO listings
• Schools and School districts