Best Real Estate APIs for your Website or App in 2024

What are Real Estate APIs

Real estate APIs are digital tools that provide vast real estate data access. They offer crucial information like property listings, prices, and market trends. 

These APIs benefit professionals, investors, and developers in the real estate industry. They streamline access to data, saving time and resources. With these APIs, users can quickly analyze property values, understand market dynamics, and make informed decisions.

 They enhance efficiency, accuracy, and competitiveness in the real estate market. Real estate professionals can offer better services, attract more clients, and optimize their investments by integrating these APIs into their systems.

👌What is an API ?
An API is a set of rules that lets different software or apps communicate with each other. Think about it as how your website communicates with some other provider that holds some data you want to show.

Real estate APIs quickly deliver a wide range of real estate information, helping to run websites and apps in this field. They offer details like property listings, nearby shops, restaurants, transport options, neighborhood areas, and local schools. Nowadays, most online info about properties and their neighborhoods comes through these APIs.

How Can Real Estate APIs Help My Business?

Real estate APIs can significantly benefit your business in various ways. Here’s how:

  1. Access to Comprehensive Data: APIs provide real-time access to extensive real estate databases, including listings, property values, neighborhood statistics, and more. This data is essential for staying informed and making data-driven decisions. An MLS integration is done via the use of API’s.
  2. Enhanced Customer Experience: Integrating real estate APIs into your website or app can offer users detailed property information, interactive maps, and other valuable features, improving their experience and engagement.
  3. Market Analysis and Insights: APIs allow you to analyze market trends, track property price changes, and understand customer preferences, helping you to strategize effectively.
  4. Time and Cost Efficiency: Automating data collection with APIs saves time and reduces the costs associated with manual data gathering and analysis.
  5. Improved Property Listings: With APIs, you can enhance your property listings by including comprehensive details, high-quality images, and up-to-date information, making them more attractive to potential buyers or renters.
  6. Competitive Edge: By leveraging the latest technology and data, you can stay ahead of competitors, offering innovative services and insights that others may not provide.
  7. Customization and Flexibility: APIs allow for services and data presentation customization, enabling you to tailor your offerings to meet specific customer needs or market niches.
  8. Increased Reach: APIs can help expand your business reach by connecting to various platforms and networks, increasing your market visibility.

Real Estate MLS API 

MLS APIs are digital tools that connect to Multiple Listing Services, providing up-to-date real estate information. 

They help real estate agents, buyers, and sellers quickly access a wide range of property data. With MLS APIs, users can search for homes based on various criteria like location, size, and price. They also provide photos and descriptions of properties, making it easier to find the right home. 

Furthermore, IDX (Internet Data Exchange) APIs complement these tools by allowing real estate websites to display up-to-date listings from the MLS. This ensures that buyers and sellers have access to the latest market information, enhancing their ability to make informed decisions in the real estate market.

Not every Multiple Listing Service (MLS) has its distinct API. The situation with MLS APIs is complex due to the fragmented nature of MLS systems. Here’s an overview:

Multiple MLS Systems: There are hundreds of MLS organizations across the United States, each managing their property listings and data. However, not all have developed their APIs to access this data.

Standardization Efforts: There has been a move towards standardization in MLS data sharing, primarily through the Real Estate Standards Organization (RESO). RESO has developed a standard data model and web API to make it easier for software to interact consistently with different MLS databases. However, not all MLSs have adopted these standards.

Third-Party Aggregators: Because not every MLS offers its API, third-party services often aggregate MLS data and provide it through their APIs. These services typically access multiple MLS databases and deliver a unified API to their users.

Access Restrictions: Access to MLS data is restricted to licensed real estate professionals, and strict rules govern how this data can be used and shared.

Diverse Implementation: In cases where MLSs have their APIs, the implementation and the extent of the data provided can vary significantly from one MLS to another.

Example: The Bridge API lets you easily use MLS (Multiple Listing Service) listings for your website or app. It means you can show many property listings without much trouble. Zillow recently bought the Bridge API. It sends this data through a simple web-based system (RESTful API).

Related Article
Why are RESO API and Data Dictionary important?

You can find more about it on their website: Bridge API. This API is mainly for MLS listings. It’s designed in a REST style, and you ask for data using web links (URI Query String). It sends back information in JSON format, which is easy for computers to read and use. 

MLS import uses an API like this to read, transform, prepare, and import the data into the MLS WordPress Website. Once the data is imported into the WordPress website, IDX plugins can then be used to seamlessly display these listings, offering an interactive and user-friendly interface for site visitors to browse and search for properties.

Best Real Estate APIs for Your App in 2024

Yelp Fusion API 

This tool lets you add information about local businesses to your real estate maps or property listings. Yelp Fusion has details on millions of companies worldwide. 

The information you can get includes the business’s name, location, contact details, pricing, customer reviews, website, and photos. Yelp Fusion updates regularly, so you get the latest reviews and images.

Yelp Fusion

Walk Score API

This API rates how walkable a place is and gives you this data for your apps and websites. It shows how close local shops, public transport, and bike paths are to a property, adding valuable information to real estate listings or rentals. 

The Walk Score API provides coordinates and addresses and sends back data in JSON or XML formats.

Walkscore API

Google Maps API or Openstreetmap MAP

 Essential for real estate websites, Google Maps lets users add maps with listings and other data. It has loads of information on businesses, places, photos, and imagery. There are also free alternatives like OpenStreet Maps, but they have fewer features than Google Maps.

Google Maps API

GreatSchools API

This API offers detailed information about K-12 schools across the U.S. It includes GreatSchools ratings, which evaluate college readiness, test scores, fairness, and student growth.

The data feed also gives the school’s name, location, grades taught, reviews, whether it’s public or private, and contact details. Users can find out about nearby schools by entering a property or home address.

Great Schools API

Mortgage Monthly Payment Calculator API

This simple calculator estimates the monthly cost of a home loan based on purchase price, down payment, interest rate, and other factors.

Mortgage Monthly Payment Calculator

Transit API

This API is a real-time source for city transportation options in the U.S., like buses, trains, and bikes. It gives details about locations, departure times, and routes. Real estate professionals can use it to find nearby transit stops or calculate travel times.

Transit's APIs

Realtor Property Resource API

This is a huge database for real estate agents with property, school, neighborhood, and tax info. It’s from the National Association of Realtors and only for their members. It includes many property listings, open houses, virtual tours, and value estimates.

Realtors Property Resource API

Risk Factor API

This assesses environmental risks for properties, considering climate change. It looks at flood, fire, heat risks, damage costs, and cooling needs.

Risk Factor API

Precisely Neighborhoods API

This API gives neighborhood details for any location worldwide, using latitude and longitude. It tells you the neighborhood’s name and type.

Precisely Neighborhoods API


This service offers a wide range of real estate data, like property search and details, comparisons, and boundaries. It covers over 150 million properties and helps users develop real estate apps.



Developed by the National Renewable Energy Lab, this API estimates the solar potential of properties. It calculates monthly solar radiation and yearly energy production based on location and solar system details.


Zyla Cost of Living API 

provides cost estimates and average prices for over 8,000 cities globally. It covers expenses like food, clothes, healthcare, education, and housing and includes average salary data. 

Zyla Cost of Living API

Climate Check API

This API provides data on climate risks like heat, drought, flooding, and fire hazards based on an address. It shows current and future dangers up to 2050.

Climate Check API

HowLoud API

This tool estimates noise levels at specific places. It gives Soundscores for U.S. addresses, measuring noise from traffic, emergency services, and more. It also offers a noise heatmap for community areas.

How Loud API

Boundaries iO API

This dataset includes boundaries for postal codes, places, and neighborhoods in the U.S., U.K., Canada, and Germany. It’s customizable and integrates with maps and other applications.

Boundaries iO API

Weather API

This API offers current and past weather data, including wind, humidity, temperature, and air quality. It helps add weather trends to property listings.

Weather API

Trailforks API

This improves real estate listings with details on outdoor trails for activities like hiking and biking in the U.S. It includes trail types, difficulty, and conditions.

Trailforks API

PubRec API

This provides public data on real estate properties, including over 110 details like property ID, tax information, and owner data. It responds in JSON format.

PubRec API

Nearby Doctor API
This API enhances the appeal of properties for sale by showing how close they are to healthcare facilities. The information provided includes medical professionals’ full names, titles, and where they work, along with the complete address and location coordinates.

Medcorder Nearby Doctor API

U.S.A. Sales Tax by Zip Tax API

This tool gives sales tax rates by zip code across the U.S., helping buyers understand local tax burdens.

Visit Zip Tax API

Census Economic Indicators API

This offers monthly and quarterly U.S. economic data, including stuff related to real estate like new homes, vacancies, and sales. It’s free and has valuable info for understanding local markets.

Census Economic Indicators API

Census American Community Survey API

Another free resource has detailed community data like internet use, heating types, and housing details. It’s updated yearly and is very detailed.

Census American Community Survey API


Real estate APIs are powerful digital tools that revolutionize our interaction with property data. By offering instant access to vast information like property listings, prices, and market trends, these APIs are invaluable for real estate professionals, investors, and developers. 

Related Article
How Is IDX Different From RESO Web API?

They save time and resources and provide a gateway to efficiently analyze property values and market dynamics. With such APIs, real estate businesses can enhance their services, attract more clients, and make smarter investment decisions. 

They support various functionalities – from showing nearby amenities and calculating mortgage payments to assessing environmental risks and providing detailed neighborhood insights. 

As the real estate industry evolves, these APIs become crucial for staying competitive, offering tailored customer experiences, and grasping market opportunities.


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