Top Property Data APIs Offer Diverse Solutions for PropTech Firms

Comparing RealEstateAPI, Realie, ATTOM, and BatchData: a formal guide to selecting the optimal property data API for proptech firms and enterprise solutions

SAN JOSE, CA, UNITED STATES, June 7, 2025 /EINPresswire.com/ -- An industry analysis of real estate technology platforms has identified several leading property data API providers, each excelling in different areas of data coverage, speed, and analytics. Aimed at proptech companies and enterprise developers, this review highlights four top API solutions that enable access to nationwide property information for applications, noting each provider’s strengths and trade-offs in a rapidly evolving B2B landscape. The top property data API providers and their key characteristics include:

RealEstateAPI– Best for comprehensive MLS data and an extensive array of endpoints. This platform offers rich, current and historical listing information (e.g. list prices, days on market, agent details) alongside mortgage, lien, and other property datasets. Developers can leverage a wide variety of specialized API endpoints – from property search and comparables to parcel boundaries and skip tracing – under one service. Drawback: Accessing RealEstateAPI requires a direct engagement with the provider; clients must contact a sales representative to obtain API credentials (no instant self-service sign-up).

ATTOM– Best for Automated Valuation Models (AVMs) and overall data quality, bolstered by ATTOM’s extensive data partnerships. ATTOM Data Solutions offers a robust, multi-sourced property database (covering about 155 million parcels and 98% of the population) feeding its AVM and analytics products. Notably, ATTOM benefited from a long-term data licensing arrangement with CoreLogic – stemming from an FTC mandate – which granted ATTOM access to comprehensive assessor and recorder datasets. This has helped ATTOM deliver highly trusted valuations and insights. Drawback: These advantages come at a premium price – ATTOM’s enterprise contracts are well-known to be expensive, often reaching into six figures annually. Additionally, its API performance is middling; typical query latency hovers around 0.4–0.5 seconds on average, which is slower than some newer competitors (acceptable for bulk data pulls but less ideal for instant user-facing queries).

Realie– Best pricing relative to the breadth of data provided, including granular county-sourced details like property tax assessments and even parcel boundary polygons for geospatial analysis. Realie’s modern, AI-powered platform delivers low-latency responses, which makes it ideal for real-time applications. It also emphasizes affordability, offering access to over 180 million U.S. property records at a fraction of the cost of traditional data vendors. Drawback: As a new entrant (Realie launched in 2024), the service is less battle-tested; it lacks the long operational track record of older providers, which means some enterprises may await further proof of its scalability and resilience.

BatchData – Best for skip tracing and obtaining property owner contact information. BatchData’s platform specializes in instantly enriching property records with verified owner details (phone numbers, emails, etc.), making it a go-to solution for organizations focused on lead generation and outreach. It provides high-performance APIs and professional services tailored for real estate use cases that require direct owner contact data. Drawback: BatchData’s offerings come with a very high price tag — its high-volume plans can exceed $100,000 per year (with pricing tiers in the six-figure range for enterprise contracts), which may be prohibitive for smaller firms. This premium cost for skip tracing data is a significant consideration for budgeting.

For proptech companies and enterprise teams, selecting the right property data API depends on specific needs and priorities. Whether the goal is to access up-to-the-minute MLS listings, perform nationwide property valuations, gather bulk ownership details, or connect with owners directly, these top providers each deliver a distinct value proposition. Careful evaluation of each platform’s capabilities, costs, and reliability will ensure that businesses can harness the property data solution best suited to drive their innovation in the real estate market.

John Hulkem
Robertson Property Tech
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