The AI Data Integration Platform for Residential Real Estate
Access AI-enhanced real estate data from 16 countries (US: entering now, selected states, commercial real estate only, via Claro AI). Build smarter residential applications with AI Data Integration Platform: deduplicated listings, accurate valuations, and real-time market intelligence
Real-Time Residential Real Estate Data
CASAFARI’s AI Data Integration Platform delivers AI data and real estate data from thousands of residential portals and agencies — deduplicated, standardized, and validated for accuracy across the residential real estate market. Our data integration solutions ensure consistent, clean property information accessible through one unified API. Access live listings, historical transactions, and market trends for apartments, houses, and condos — all through one API integration built for seamless performance.
What makes our residential data different:
- Residential-specific cleaning: AI models trained on residential properties using advanced data integration techniques.
- Accurate property attributes: bedrooms, bathrooms, square meters, floor levels — validated and standardized through our API integration services.
- Neighborhood-level insights: residential market trends, price per sqm, and supply/demand metrics by area powered by AI data analysis.
- Listing lifecycle tracking: monitor new listings, price changes, and off-market properties with our intelligent data integration platform for real estate.
Trusted by 60,000 real estate PROFESSIONALS across 16 countries
CASAFARI API Data Integration Features
Property Sourcing API
Search millions of deduplicated residential listings across 16 countries using our AI-powered data integration platform. Build property discovery, comparison, and aggregation tools enriched with real estate data from verified sources.
- Unified search powered by clean data integration from 30.000+ classified portals and agencies.
- Standardized residential property attributes for seamless API integration.
- Historical listing data and price change tracking for deep market insights.
Valuations & Market Study API
Access residential comparable sales and pricing data through CASAFARI’s data integration platform. Build advanced pricing tools and investment analysis using AI data and clean residential transaction history.
- Residential comp selection by location and property attributes.
- Historical price trends for apartments and houses.
- Neighborhood-level price per sq.m. statistics for data-driven evaluations.
Market Leads API
Get instant notifications when new residential properties match your criteria — ideal for buyer alerts, investment deal flow, and agent prospecting tools.
- Real-time residential listing alerts via data integration software.
- Custom search criteria (property type, price, location, size).
Area Insights API
Query aggregated residential market statistics with our API integration services. Build reports, dashboards, and analytics tools powered by reliable real estate data.
- Supply / demand metrics by property type and location.
- Price trends and market velocity indicators.
- Inventory levels and time-on-market statistics powered by AI data integration.
Unified Property Listings Data
Access the largest real estate data repository with over 200M listings aggregated from thousands of trusted sources through our data integration solutions.
- One complete record per property, including full listing history.
- Residential, commercial, and private seller listings across 16 countries.
- Refine by property type, price, location, and size to uncover top opportunities using AI data integration tools.
Residential-Focused API for Every Use Case
The residential real estate market depends on clean, accurate, and unified real estate data. With CASAFARI’s API integration platform, it becomes possible to access and manage AI data at scale. Our clients enhance their businesses and develop advanced data integration tools using CASAFARI’s API integration solutions designed for seamless data integration across markets.
- Strategic Operations: Agents use the platform for daily operations, marketing strategies, and expansion decisions.
- Data Reselling: Resells CASAFARI services via an iFrame integration to clients, providing enriched property data.
- Listing Monitoring: Tracks all new listings via Properties API and displays them in a Metabase dashboard.
- Valuations Support: Valuations & Market Study API to collect comparable property data for supporting and validating valuation reports.
- Lead Generation: Valuations & Market Study API to provide online property valuations for B2B2C lead generation.
- Social Asset Management: Comparables data to manage real estate assets for social projects.
- Embedded Access: Offers the platform to agents via iFrame integration for direct access to property data and market insights.
- Market Advisory: Property data to analyze specific markets, supporting valuations and advisory.
- Expansion Intelligence: Property data and comparables for the internally built products. Market data to expand operations, select new locations, and support agent recruitment.
- CRM Intelligence: Property data and comparables integrated into CASAFARI CRM for unified property and customer management.
- Integrated Valuation: Integrates Valuations & Market Study API for valuations directly in website and CRM.
- Centralized Property Data: CASAFARI CRM within their internal system for property data management.
How CASAFARI Built a Mobile-First Experience with its Real Estate Data API
Overview: Real Estate API
CASAFARI has taken a bold step in bringing complete and clear real estate market view directly into the hands of agents and clients through their mobile application. Powered entirely by Casafari Property Data API, their app enables users to track market trends in real time, source properties from the most complete database, see the history of every asset, and evaluate any property instantly – anytime, anywhere…
Explore our API documentation to learn how to seamlessly integrate CASAFARI’s AI-powered real estate data into your applications.
Access clear API references, step-by-step integration guides, and ready-to-use code examples to help you build reliable, data-driven property solutions faster. Whether you’re developing internal tools or customer-facing applications, CASAFARI’s API delivers structured, up-to-date residential data with industry-leading accuracy and performance.
Registered transaction prices from official sources
CASAFARI holds registered transaction prices: what homes actually sold for, taken from official sources in Spain, Portugal, France, Italy, Poland and Austria, and not only what they were advertised at. The Valuations & Market Study API builds on the same comparable sales and transaction history.
- Comparables: sold homes with a real closing price carry a purple “closing price” tag and are added automatically when the valuation finds them.
- CMA: the estimate multiplies the average price per m² of your selected comparables by the property's area, so comparables with registered prices count towards the value.
- Market Study: see the average closing price for the kind of property you are valuing in a chosen area, next to current asking prices.
- Property History: every registered sale around the property in Spain, France, Italy and Poland, and how the average closing price in the area has developed. In Portugal and Austria it shows the development of aggregated official statistics for the area.
Where the prices come from
| Country | Official source | What it records | Update cycle |
|---|---|---|---|
| Spain | Notariado (Consejo General del Notariado), through Dato Notarial | Closing prices of registered sales, with basic mortgage information | Direct data feed |
| Portugal | INE, Statistics Portugal | Median transaction prices per m² by municipality and, in larger areas, by parish, built on Tax Authority records | Quarterly |
| France | DVF (Demandes de valeurs foncières), published by the tax administration from notarial deeds | Sales of the last five years in metropolitan France and the overseas departments, except Alsace, Moselle and Mayotte | Twice a year, April and October |
| Italy | Agenzia delle Entrate, Osservatorio del Mercato Immobiliare (OMI) | Prices declared in registered deeds, and minimum and maximum price ranges per OMI zone | OMI zones every six months |
| Poland | RCN, Rejestr Cen Nieruchomości, kept by the county offices from notarial deeds and made available by GUGiK, the national surveying authority | Property prices stated in notarial deeds, in zloty | As deeds are registered |
| Austria | Statistik Austria, property price statistics (Immobilien-Durchschnittspreise) | Average prices of flats, houses and building land by district and municipality, aggregated, not sale by sale | Yearly |
In Portugal and Austria the official data is aggregated by area, not listed sale by sale. Source details checked on 23 October 2026.
API reference, guides and related products for building with CASAFARI data
- For developers, product managers and analysts ready to start building, the complete list of endpoints, parameters and response fields for the Property Sourcing API, Valuations & Market Study API and Area Insights API lives in the API reference on developers.casafari.com.
- To help plan your system architecture, our post on how to build applications with CASAFARI's Property Data APIs walks through search interfaces, valuation widgets and analytics dashboards.
- If you are presenting a business case to non-technical stakeholders, the guide explaining what a real estate API is and what it should deliver defines deduplication, comparables and market stats in plain language.
- Before scoping projects by territory, consult the help article listing the countries where CASAFARI data is available, noting that specific endpoint coverage per market is detailed in the API reference.
- When developing an AI assistant rather than a classic integration, consider Casafari MCP, which gives AI agents the same property data using the Model Context Protocol.
FAQs
In which countries does CASAFARI provide real-time residential real estate data?
CASAFARI’s AI-powered data integration platform delivers real estate data from 16 countries (US: entering now, selected states, commercial real estate only, via Claro AI) worldwide in real time. Our data integration solutions cover millions of residential properties, offering unified and deduplicated listings from 30,000+ sources, including classifieds, portals, real estate agencies, and more.
How much does CASAFARI API cost?
Pricing for CASAFARI’s API integration platform depends on the type of API, data volume, and integration needs. We offer flexible API integration services and custom data integration software packages for startups, enterprises, and AI applications.
How often do you update the data?
Our AI data integration system continuously collects and updates property data from verified sources. Depending on the API, updates occur once per day or even more frequently to ensure your AI data and property insights remain accurate and current.
What is the extent of the historical data?
CASAFARI provides extensive historical real estate data. Depending on the API, we offer up to one year of historical records or complete historical data from the start of collection across all markets.
Can the API results be cached or stored?
API results may not be stored indefinitely for reuse. However, if your project requires long-term access or API data integration into your platform, we can provide tailored data integration solutions as part of a custom agreement.
What data points do you have?
Our data integration platform delivers comprehensive real estate data — including property type, location, price, size, listing history, and market trends. To explore all available data points, visit our API documentation.
Does CASAFARI have registered transaction prices?
Yes, for Spain, Portugal, France, Italy, Poland and Austria. CASAFARI uses official sources, listed country by country on this page, and shows the registered prices next to asking prices in Comparables, CMA, Market Study and Property History.
Which official sources does CASAFARI use for transaction prices?
Spain: Notariado (Consejo General del Notariado), through Dato Notarial. Portugal: INE, Statistics Portugal. France: DVF, Demandes de valeurs foncières. Italy: Agenzia delle Entrate. Poland: RCN, Rejestr Cen Nieruchomości. Austria: Statistik Austria (aggregated statistics). Details checked on 23 October 2026.
How do Comparables, CMA, Market Study and Property History use registered prices?
Comparables flags sold homes that have a real closing price. The CMA averages the price per m² of the comparables you select to estimate a value. Market Study shows the average closing price of an area next to asking prices. Property History lists the registered sales around a property in Spain, France, Italy and Poland and shows the development of the average closing price in the area; in Portugal and Austria it relies on aggregated official statistics, not individual sales.