Access detailed property characteristics including bedrooms, bathrooms, square footage, lot size, year built, and construction details for 155M+ properties via REST API (JSON and XML).
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ATTOM Data Solutions
attomdata.com Free tierATTOM Data Solutions provides comprehensive property data APIs covering ownership records, valuations, hazard risks, and neighborhood insights for 155M+ U.S. properties.
The verdict
ATTOM Data Solutions is the most developer-friendly enterprise property data provider, offering the lowest barrier to entry for PropTech startups through RapidAPI availability and flexible usage-based pricing. Not for individual agents, but powers many tools agents use daily.
01 — Overview
What ATTOM Data Solutions is, and isn't.
ATTOM Data Solutions (formerly RealtyTrac, founded 1996) is one of the largest curators of land, property, and neighborhood data in the United States. Owned by private equity firm Lovell Minnick Partners since January 2019, the company aggregates data from over 3,000 county sources to provide comprehensive property intelligence covering 155+ million U.S. properties.
The platform offers multiple REST API endpoints for accessing property characteristics, ownership history, deed and mortgage records, foreclosure data (updated daily), automated valuations (AVMs) with confidence scores, natural hazard risks, and neighborhood demographics. ATTOM distributes data through its direct API as well as through RapidAPI, AWS Data Exchange, Snowflake Marketplace, and Dewey Data. In 2022, ATTOM acquired Estated and is currently migrating Estated API architecture to its own infrastructure, with Estated docs scheduled for deprecation in 2026.
ATTOM is best suited for PropTech developers building real estate applications, mortgage lenders, insurance providers, and enterprise brokerages that need programmatic access to property data at scale. Individual agents typically access ATTOM data indirectly through tools built on their APIs. Among the enterprise data providers in this category, ATTOM offers the lowest barrier to entry for startups and developers thanks to its RapidAPI availability and flexible usage-based pricing.
02 — Features ◆ standout
8 features, scored.
The 4 marked ◆ are why we rate ATTOM Data Solutions a 4.4 overall.
Multiple AVM products providing property value estimates with confidence scores and comparable sales analysis.
Current and historical ownership data, deed transfers, mortgage records, and liens sourced from 3,000+ county recorder offices.
Pre-foreclosure, auction, and bank-owned property data updated daily for distressed property identification.
Environmental risk scores for flood, fire, earthquake, and other natural hazards by property address.
Demographics, schools, crime statistics, and points of interest for neighborhood-level analysis.
Comparable sales data with adjustments for accurate property valuation support.
Historical and current market statistics at zip code, county, and metro levels with trend analysis.
03 — Verdict at a glance
What we like — and where it falls short.
Pros
- +Comprehensive nationwide property database covering 155M+ properties from 3,000+ county sources
- +Most accessible enterprise data provider for startups and developers via RapidAPI
- +Well-documented REST APIs with Postman collection and modern developer tools
- +Flexible pricing from per-report to enterprise with a 14-day free trial
- +Multi-channel distribution: direct API, RapidAPI, AWS Data Exchange, Snowflake
- +Daily-updated foreclosure data not easily available elsewhere
Cons
- −Enterprise pricing requires sales consultation with long negotiation cycles
- −Not designed for individual agent use -- agents access ATTOM data indirectly
- −Smaller company (~120 employees) than Cotality or ICE competitors
- −Some rural areas may have limited data coverage
04 — Pricing
5 tiers. Most teams land on the middle one.
Prices below are as listed publicly Feb 2026. Verify on the official pricing page before committing — vendor pages change more often than our quarterly re-checks.
Free Trial
Custom
- 14-day API access
- Limited API calls for testing
- Access to documentation and sandbox
- Sample data exploration
Individual Reports
Custom / mo
- From $9.99 per report
- Per-report property data access
- Basic property characteristics
- Ownership records
Subscription Most pick this
$89.99 / mo
- Monthly subscription with included credits
- Access to core property data APIs
- Basic AVM valuations
- Property characteristics and ownership
- 200 calls/minute rate limit
Developer/Pro
$200 / mo
- $200 monthly credit with per-call pricing beyond
- Full property database access
- Advanced AVM models
- Foreclosure and pre-foreclosure data
- Natural hazard risk data
- Technical support
Enterprise
Custom / mo
- Custom pricing ($500+/month, $10K-$100K+ annually)
- Bulk data licensing
- White-label solutions
- Custom data integrations
- SLA guarantees
- Dedicated account manager
05 — Integrations
What it talks to, out of the box.
Direct integrations marked first; Zapier and Make cover the long tail.
REST API (JSON/XML)
Bulk Data Feeds
AWS Data Exchange
Snowflake Marketplace
RapidAPI
Dewey Data
Public API: yes
06 — Top alternative
If ATTOM Data Solutions isn't the right shape.
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Cotality (formerly CoreLogic)
Cotality (formerly CoreLogic) remains the industry standard for enterprise property, mortgage, and risk data with unmatched 99%+ U.S. coverage. Essential for large lenders and insurers, but ATTOM offers a more accessible entry point for PropTech startups and developers.
07 — Frequently asked
Questions every ATTOM Data Solutions shopper asks.
How much does ATTOM Data cost in 2026?
ATTOM subscription plans start at $89.99/month with included credits. Developer plans offer $200 monthly credit with per-call pricing beyond. Individual reports start from $9.99. Enterprise contracts typically range from $10,000 to $100,000+ annually. ATTOM is also available on RapidAPI with transparent per-call pricing.
What data does ATTOM provide?
ATTOM provides property characteristics, ownership records, deed and mortgage history, automated valuations (AVMs) with confidence scores, daily-updated foreclosure data, natural hazard risks, neighborhood demographics, school data, and market trends for 155M+ U.S. properties sourced from 3,000+ counties.
Is ATTOM Data accurate?
ATTOM aggregates data from 3,000+ county sources with regular updates and quality controls. Their AVM accuracy varies by market but generally falls within industry standards. Always verify critical data points independently for high-stakes transactions.
Can individual real estate agents use ATTOM?
ATTOM is designed for developers and enterprises rather than individual agents. However, many agent-facing tools (CRMs, valuation tools, lead platforms) are built on ATTOM data, so agents often use it indirectly through their existing tech stack.
ATTOM vs CoreLogic (Cotality): which is better?
Cotality (formerly CoreLogic) is larger with 99%+ U.S. property coverage and deeper mortgage/insurance integration. ATTOM is more accessible for PropTech startups with flexible API pricing and RapidAPI availability. Choose ATTOM for developer-friendly access; choose Cotality for enterprise-scale mortgage and insurance workflows.
Does ATTOM have a free API trial?
Yes, ATTOM offers a 14-day free trial with limited API calls to test their data products. Developers can explore the API documentation, Postman collection, and sample data before committing to a paid plan.
What happened to Estated API?
ATTOM acquired Estated in August 2022 and is migrating Estated API architecture to its own infrastructure. Estated documentation is scheduled for deprecation in 2026. Existing Estated users should transition to the ATTOM API.