ATTOM

Nationwide property data API powered by AI-collected public records.

Realie is a property data platform that serves nationwide parcel, ownership, mortgage, and zoning data through a fast API. AI agents continuously collect records from public sources across 3,100+ U.S. counties in all 50 states, normalize the differing county layouts, and verify them so the data stays current. It handles search, lookups, and enrichment at sub-10ms latency, offers an automated valuation model and comparables, and supports full-state or nationwide bulk delivery via Amazon S3.

Expressive property data APIs for building proptech.

RealEstateAPI (REAPI) is a developer-focused property data platform offering APIs for property search, detail, comparables, parcel boundaries, address autocomplete, and skip tracing across roughly 95% of U.S. properties. It targets proptech startups and data-heavy products that want flexible, modern access to nationwide real estate data, and provides lender-grade automated valuations with confidence scoring for pre-qualification, underwriting, and portfolio monitoring.

AI-powered property valuation and real estate analytics.

HouseCanary is a property valuation and analytics platform covering 136M+ U.S. properties. It uses machine learning — including image recognition that reads home condition from photos — to produce automated valuations (AVMs), comparables, market forecasts, and portfolio monitoring, plus CanaryAI, a generative AI assistant. It serves mortgage lenders, single-family-rental investors, REITs, and agents through an API and web products.