AI-native, comprehensive, accurate, and continuously updated — that’s CASAFARI’s property data API. Discover why leading teams across 20+ countries rely on CASAFARI to build their applications and AI copilots. Learn how also your business can leverage the same APIs.
What is a property data API used for in real estate?
An API (Application Programming Interface) acts as a bridge that allows different systems to communicate automatically.
Property data APIs provides access to reliable information such as property history, comparables, market analytics, and location intelligence. Our operations are scalable, therefore, the data coverage and depth can span broad markets or highly specific niches.
This specifically enables AI application, Copilot, or BI developers to integrate data instantly and then scale their technology. Because of this accurate and up-to-date data, they can build powerful tools with countless use cases.
What does CASAFARI’s property data API provide?
- A full property listing inventory across 20+ countries.
- In addition, detailed information for each property, including exact location, characteristics, energy rating, and complete historical records of price and status changes.
- Furthermore, property performance metrics, such as time on the market, fair market value, and gross rental yield.
- Moreover, visibility on where else the property was listed across all portals, classifieds, and agency websites.
- Also included are comparable properties and instant property valuations.
- Beyond that, historical insights, such as asking and closing prices, stock, liquidity, and rental yields — as time series and heatmaps.
- Next, catchment analysis that automatically calculates time to travel by foot, bicycle, car, bus from the property as a starting point.
- Additionally, neighbourhood analysis with Points of Interest around the property.
- Finally, business location planning for new units with mobility and tourist data, and socio-demographic information around any property.
The advantages of CASAFARI’s property data API as an AI data integration platform
Our mission: we bring transparency to the opaque real estate markets. Therefore, we build the most complete and accurate real estate database and, in consequence, we organise chaos into an ecosystem. We make our datasets available to the market through multiple interfaces, for example, property data APIs. Ultimately, everyone who seeks transparency and accurate data in the built world benefits from our comprehensive and accurate datasets. So, why are our property data APIs so powerful?
AI-powered property data API – engineered for completeness and accuracy
To ensure completeness and accuracy across data from 30,000+ sources, CASAFARI therefore runs AI-native data pipelines.
Our system continuously indexes, ingests, cleans, normalizes listings, thus updating our mega-dataset every minute. In addition, our infrastructure uses AI for indexing and ML models to normalize unstructured data. As a result, we unify fragmented and scattered heterogeneous data by deduplicating listings of the same property into a single entity.
On top of this unified data layer, we deploy multiple algorithms to generate actionable insights through the property data APIs. For example, scoring models produce hyper-relevant comparables. Furthermore, property valuations provide FMV (Fair Market Value) and rental yield estimates for any listing. Similarly, market analytics leverage algorithms for outlier exclusion, time series, and heatmaps.
CASAFARI Property Data API operates as a next-generation meta-search engine. Specifically, we aggregate listings from thousands of sources into unique property entities. This is crucial when the same property appears on multiple sources with differing photos, prices, sizes, types, or conflicting location information.
Property Data APIs as an AI data integration platform
CASAFARI’s property data APIs and MCP turn our engine into an AI data-integration platform. We give AI engineers direct access to complete, clean, deduplicated, and continuously updated property data. Instead of spending months on data ingestion, scraping, normalization, and so on, developers can instantly plug into a unified, production-grade dataset designed for AI applications.
A clean, unified data layer ready for AI workloads
All data delivered through CASAFARI’s property data API endpoints is pre-processed and ready for ML models, LLMs, or AI agents. The platform exposes:
- Deduplicated listings resolved into unique property entities
- Multimodal features: text, numerical data, geospatial signals, historical records, and images
- Time-series price and market dynamics
- Real-time listing updates, including price, status changes, and time on market
- Location intelligence, POIs, mobility and visitor data grouped by residents and tourists, and socio-demographic layers
- Comparable-property vectors, valuations, and performance scores
This creates an AI-ready “source of truth” for any model or application that needs reliable, real-world property context.
Built for modern AI workflows
CASAFARI’s property data API and MCP integration fits seamlessly into AI engineering workflows, enabling developers to:
- Inject structured property context into LLMs via APIs or MCP tools
- Build property valuations, sourcing, or risk models
- Feed time-series real estate market data into predictive models (pricing, liquidity, supply/demand)
- Run geospatial reasoning from unified location and catchment datasets
- Automate decision pipelines (gross yields, fair market value, location and property scoring, site selection)
- Power agentic applications that monitor the market and trigger workflows autonomously
Data is delivered in formats easy to consume for any applications, agent frameworks, and Business Intelligence systems.
Integration layer for AI agents and copilots
With CASAFARI’s property data APIs and MCP, AI agents or copilots can:
- Search for properties with precise filters
- Query the latest prices, history, or valuations
- Compare listings and retrieve the biggest selection of relevant comps nearby
- Retrieve neighbourhood-level insights updated daily
- Evaluate true investment potential based on real-time market data
- Generate reliable C-level ready summaries and market reports
Consequently, this makes CASAFARI “the source of truth for the built world.” In fact, it acts as a domain-specific knowledge module. Thus, any application or LLM can call it in real time, allowing AI systems to reason over verified data instead of hallucinating.
Production-grade infrastructure
CASAFARI’s pipelines run continuously, delivering minute-level updates to ensure every API call hits fresh, consistent data. Developers get:
- High-volume throughput – the API can handle large numbers of requests at once, so AI applications can query thousands of properties without delays.
- Low-latency endpoints – responses come back almost instantly, enabling real-time or near-real-time data access for models, dashboards, and AI agents.
- Strong data contracts – predictable, reliable, and documented data, with stable schemas, validated fields, versioned updates, and clear error handling.
- Stable schemas optimized for ML consumption – data structures are consistent and designed for direct use in AI applications or BI systems.
This allows engineers to confidently build production AI services without managing their own data cleansing, deduplication, or monitoring stack.
Broad coverage across markets and asset classes
Our location and property data APIs connect to the most comprehensive real estate database and location intelligence across 20+ countries across continents.
CASAFARI’s geographic data coverage:
Europe: Andorra, Austria, Belgium, France (including Guadeloupe, Martinique, French Guiana, Réunion, Mayotte), Germany, Greece, Italy, Luxembourg, Monaco, Poland, Portugal (including Azores and Madeira), San Marino, Spain (including Balearic Islands and Canary Islands), Switzerland.
Middle East: United Arab Emirates.
North America: USA, Mexico.
South America: Brazil.
Other European Locations / Location Intelligence Focus: UK, Netherlands, Czech Republic, Hungary, Romania.
With data sourced from over 30,000 sources and 200+ million listings, we offer access to a complete view of each market – in any asset class.
All asset classes covered:
Apartment – Apartment, Studio, Duplex, Penthouse, Attic apartment, Floor apartment, Ground floor apartment.
House – House, Country House, Palace, Townhouse, Villa, Country Estate, Chalet, Bungalow, Single-family house, Two-family house, End townhouse, Middle townhouse.
Commercial – Commercial, Retail, Restaurant, Office, Hotel, Other commercial, Garage, Parking.
Industrial – Industrial, Warehouse, Workshop.
Plot – Rural Plot, Urban Plot (Residential, Commercial, Mixed).
Building – Building, Apartment Building, Office Building, Mixed-use Building.
Investment properties.
New Development projects.
Room as individual rental units.
Agricultural farms.
Our platform supports multiple use cases, including property sourcing, property valuation, investment analysis, site selection, retail expansion, and franchise network growth. Furthermore, as we are continuously expanding our geographic coverage, data and asset-class depth, we add more use cases.
However, our priority – the most comprehensive and up-to-date property data API and location intelligence always avaiable to our customers worldwide.
Property Data APIs are easy to integrate
Accessing our AI data integration platform is simple: just integrate our property data API or MCP in your CRM, BI platform, AI copilot, or analytics dashboard. Our full documentation will guide you through integration.
For added support, we provide dedicated technical support through a private Slack channel, ensuring your engineers and analysts can get real-time help during implementation and beyond.
CASAFARI property data APIs: key use cases
1. Property Sourcing API
Property Sourcing API is your gateway to the most complete real estate database across continents.
The Property Sourcing API gives programmatic access. Specifically, the deduplicated database holds 50 million unique assets. These assets are collected from over 30,000 sources. Crucially, this covers 20+ countries. In contrast, traditional feeds show duplicates or incomplete data. Therefore, this API delivers a unified, clean market view. In other words, each property appears just once. Furthermore, it includes its complete historical timeline.
Data Coverage, Depth and Scale:
- 20+ countries
- 200+ million listings deduplicated into 50+ million uniqe assets (“Properties”)
- 30,000+ sources (portals, agencies, MLS systems, bank REO, auctions, private sellers)
- All asset classes covered
Property Details, Features & Attributes:
- Structural details and property condition.
- Features, amenities and licences
- Financial metrics: Asking price, price per sqm, complete price history with all changes and dates, last price change amount and date, estimated rental yield, projected rental price
- Energy rating
- Market intelligence: Time on market (days/months), first listed date, property status (active/sold/reserved/delisted), listing source and portal information, seller type (professional agent/private FSBO/bank-owned), seller contact details, agency information, exclusivity status, auction status, commission sharing availability (CASAFARI Connect)
- Location data: Street-level addresses or Exact Location, coordinates (latitude/longitude), cadastral references (selected markets), neighborhood/district/municipality hierarchy
- Historical provenance: Complete timeline since first market entry, all relisting events, every source that has listed the property with specific prices per source, full price evolution with dates
- Visual content and text (with respect to the Copyright Law in each country): thumbnails and URLs to photo galleries, AI-generated property descriptions.
Advanced Filtering Capabilities (30+ filters):
- Geographic: Country, region, city, district, neighborhood, street-level, custom boundary drawing, circle radius (50m-50km), multiple locations simultaneously (up to 10), GPS-based proximity search
- Property type: Filter by specific types (apartment, house, villa, penthouse, duplex, studio, retail, office, warehouse, hotel, restaurant, plot, etc.) and subtypes
- Price: Min/max price range, price per sqm range, recent price changes (increases/decreases), underpriced properties, price evolution patterns
- Size: Total area, useful area, plot area ranges, room count, bedroom count (0-10+), bathroom count
- Age & condition: Construction year range, property condition filters (new, used, excellent, ruin, renovation needed)
- Features: Must-have characteristics, exclude characteristics, specific amenity combinations (e.g., “parking + terrace + elevator”)
- Seller type: Private sellers (FSBO), professional agents, bank-owned (REO), auction properties, commission-sharing available
- Market status: Active listings, recently sold/rented, recently delisted, new listings (within X days), price reductions, time-on-market ranges
- Investment criteria: Rental yield targets, occupancy status, properties with existing tenants, rental license requirements
Key Use Cases
Firstly, build property search tools, AI agents, and property recommendation engines.
Additionally, create investment analysis tools and portfolio monitoring dashboards.
Moreover, power lead generation systems, market intelligence applications, and comparative market analysis tools, while also streamlining access to the best properties with internal multi-location expansion platforms for franchises.
In other words, the Property Sourcing API is suitable for any application requiring both breadth of market coverage and depth of historical insight. Consequently, this API helps identify opportunities, track competition, and therefore make data-driven acquisition decisions at scale.
Case studies
- An American global alternative investment firm with USD 65 billion in AUM uses the CASAFARI Property Sourcing API to acquire over 1,000 real estate assets each month, thereby targeting alpha-generating rental yields. In addition, CASAFARI’s data enables the team to spot high-potential opportunities in real time and perform instant underwriting using the most complete set of nearby comparables. As a result, the acquisition team can make competitive offers ahead of other potential buyers.
- An international upscale brokerage in the luxury real estate segment uses the CASAFARI Property Sourcing API to ensure their agents can therefore monitor the exclusivity of their property portfolio on a daily basis. Specifically, the API identifies if a property has been listed by other brokers or platforms without the seller’s mandate — a common issue in opaque and lightly regulated markets across Europe — thus allowing the brokerage to protect its listings and maintain a competitive edge.
- A global financial technology company uses CASAFARI’s Location Intelligence and Property Data APIs to streamline data and make informed decisions about the optimal locations for new ATMs focused on tourists.
- An AI agent in Germany replaces traditional search interfaces with a conversational AI powered by the CASAFARI Property Sourcing API.
2. Market Leads API
Market Leads or Alerts API is a fast and low-cost service to get new listings of your interest directly into your system almost instantly. The real estate data sources can be updated every 5 minutes, bringing everything that’s new on the property market straight to your software.
This is a helpful product for:
Controlling your property portfolio
With CASAFARI’s Market Leads API, you receive real-time notifications about new listings in your target areas. As a result, this allows you to closely monitor properties in your portfolio, as well as track every move of your competitors, and therefore respond faster than anyone else, ultimately ensuring you maintain a competitive advantage.
Capturing FSBO leads
Furthermore, Market Leads API also lets you be the first to discover properties listed directly by private sellers (FSBO). As a result, this gives you the opportunity to approach private sellers instantly, thereby expanding your portfolio with exclusive opportunities before they hit broader markets.
Case studies
- A leading European CRM therefore integrates CASAFARI’s Alerts API to automatically feed FSBO leads directly into their platform in multiple countries, allowing clients to track new listings in real time and follow up efficiently to secure properties for their portfolio.
- Similarly, a brokerage company from Italy uses the Alerts API to get FSBO leads added to their CRM, which in turn allows their estate agents to be the first to contact private sellers, thereby increasing their chances of securing the listing. Moreover, this real estate data is automatically updated and accessible through a simple, user-friendly dashboard.
- Additionally, a professional investor uses the API to monitor what’s new in a market of his choice by tracking and receiving all new listings daily from the top real estate portals in the country. Consequently, he can make better decisions and act faster to expand his portfolio with our AI-driven data.
3. Market Analysis API
The most comprehensive Market Analytics across 20+ countries has been made possible thanks to CASAFARI’s Market Analysis API, which provides easy access to aggregated property data within a complete intelligence platform for the built world.
In addition, CASAFARI’s Market Analysis API delivers real-time and historical insights across all asset classes — residential, commercial, retail, logistics, land, and more — and furthermore supports multiple applications, ranging from BI dashboards and AI copilots to automated valuation and site selection models.
What You Can Analyze
- Price evolution & trends – Track average asking and closing property prices, price per square meter, and market movements over time. Identify seasonal patterns, calculate growth metrics like CAGR, and benchmark individual properties against local averages.
- Supply & demand dynamics – Monitor active listings, new properties, transactions, and price changes to understand market activity and competition.
- Time-on-market intelligence – Analyze liquidity and demand efficiency across price ranges and property types to spot which assets sell or rent fastest.
- Geographic market segmentation – Drill down from countries to neighborhoods, create radius-based searches, compare cross-border markets, and visualize trends with heatmaps.
- Multi-dimensional property filtering – Segment by property type, size, bedrooms, bathrooms, construction year, condition, special categories (bank-owned, auctions), and listing source.
Market Analytics API includes
- Growth, volatility, and trend metrics (CAGR, deltas, slopes, moving averages)
- Comparative and distribution analysis (percentiles, interquartile ranges)
- Outlier detection for clean statistical insights
- Real-time updates with AI-powered validation and deduplication
Key use cases
- Optimizing pricing strategies – Compare asking prices to market averages, analyze price movements, and monitor time-on-market to price properties competitively.
- Identifying investment opportunities – Spot emerging markets, undervalued areas, and optimal entry points with historical trends, supply/demand signals, and cross-market comparisons.
- Benchmarking portfolio performance – Evaluate your portfolio against market averages in price, occupancy, geography, and property mix to optimize returns and allocation.
Case studies
- High-growth real estate company – The growth team uses CASAFARI’s Market Analysis API to identify promising markets for expansion, select optimal new locations, and support strategic agent recruitment.
- Boutique brokerage – The brokerage leverages Market Analysis API to provide clients with transparent, up-to-date information on high-yielding properties in emerging areas, helping buyers make informed decisions.
- Alternative asset investment firm – The firm combines Market Analytics with CASAFARI Properties to pinpoint top investment opportunities in emerging locations with strong performance metrics, strategically positioned near established growth markets.
4. Property Valuations API and Comparables API
Comparables API is AI-Powered Property Valuation (AVM) & Portfolio Analysis with powerful CMA (Comparative Market Analysis) reports.
The Comparables API delivers instant access to the most relevant comparable properties for any asset nearby, powered by CASAFARI’s deduplicated database in 20+ countries across continents.
Using AI-driven matching and scoring algorithms, the API automatically identifies active or sold/rented properties with similar characteristics and then returns comprehensive comparable data. Specifically, the scoring model takes into account data such as address, size, bedrooms, bathrooms, property type, condition, construction year, energy rating, features, and amenities. As a result, the output includes asking prices, price per square meter, characteristics, time on market, gross rental yields, and transactional closing prices.
Moreover, this automated property valuation API enables accurate FMV (fair market value) estimates for any property across sale and rental markets. Consequently, it supports buy-side due diligence, sell-side mandate pitching, investment analysis, and lending decisions. In addition, we adjust for property differences and market conditions, thereby providing confidence scores and price ranges based on real market comparables.
Key Use Cases
Portfolio Valuation & Performance Monitoring:
Real estate investors, asset managers, PE firms, and REITs can therefore programmatically value entire portfolios by comparing their own assets against current comparables. Moreover, regular valuations track portfolio appreciation or depreciation, measure performance against market benchmarks, identify underperforming assets, and support financial reporting. In addition, integration with portfolio management systems enables continuous monitoring without the need for manual CMA creation.
Data-Driven Asset Management Decisions:
Property owners and managers can therefore make informed hold/sell/renovate decisions, as well as optimize rental prices and maximize ROI. Furthermore, the API reveals which assets are outperforming or underperforming their market segment. Consequently, this especially enables proactive portfolio optimization and capital allocation decisions based on current market dynamics, rather than relying on outdated assumptions.
Win Seller Mandates with Accurate Fair Market Valuations:
Brokers leverage CASAFARI’s Comparables and Property Valuations API to deliver precise fair market values, supported by the most comprehensive nearby comparables. In addition, agents can showcase accurate pricing, time-on-market trends, and actual transaction data during listing presentations. As a result, this data-driven approach builds seller trust, further differentiates agents as market experts, and, consequently, helps secure exclusive mandates while ensuring optimal sale prices.
Case studies
- Asset management company (Spain & Portugal) – The firm uses CASAFARI’s Property Valuations and Comparables API to monitor portfolio value in real time and make informed decisions on when to buy or sell assets, ensuring optimal portfolio performance and strategic asset allocation.
- Digital brokerage (Portugal) – The brokerage integrates the Property Valuations and Comparables API into a mobile application for their agents, giving them instant access to relevant comparables. This empowers agents to create accurate market studies on the go, improving client advisory and listing presentations.
- Emirati PropTech company (mortgages) – The company leverages the Comparables API to power internal valuation tools, providing reliable property valuations that support mortgage origination and risk assessment workflows.
5. Listings Data API
This fully customizable and scalable Listings API provides access to a complete listings database. Each listing is presented with listing details, pricing history, and geolocation information.
Key Use Cases
- Monitor market availability: Keep track of updated inventory to stay informed on local supply and demand balance.
- Analyze pricing trends: Use our API to track property prices and adjust portfolios based on current market trends.
Can our Property Data APIs be customized?
The information our property data APIs shows inside your management software can be adapted to your needs and to the task you wish to accomplish.
We can provide you with extra real estate or public data in the APIs on demand.
We have a proven track record of developing custom algorithms and new data points to target specific needs of our customers who want to have innovative use cases on top of unique data features in their applications.
Key takeaways
In conclusion, overall, CASAFARI’s Property Data API provides real estate professionals with the most accurate, comprehensive, and up-to-date property data in the market. Moreover, powered by advanced AI, it unifies property sourcing, market analytics, and property valuations into a single, scalable ecosystem. Additionally, with access to the largest real estate database across 20+ countries, businesses can seamlessly integrate API endpoints to automate property sourcing, monitor market trends, and assess asset values in real time.
In particular, if you’re building applications, expanding portfolios, or improving operations, CASAFARI delivers fast, reliable, and AI-enriched property data. Furthermore, we help identify opportunities, optimize pricing, and gain a competitive edge across residential, commercial, and retail markets.
When more flexibility and power are required for predicting future movements and making deep analysis, developers of AI applications can also benefit from CASAFARI MCP and CASAFARI Data Export.
Get in touch with our team and let us know which applications you are building – we will find the best location intelligence and property data API for you and your budget!
