Part I: What is the Onboard Property API?


Here at Onboard, we have data on every property in the country and their surrounding communities.  We deliver that data to our clients in a variety of ways.  One of the most popular ways is through an API.  So what exactly is our Property API? API stands for Application Programming Interface.    Basically, it’s a way for developers to receive information.  More specifically, an API receives requests and sends responses from a remote server.   Our Property API has data on 150 million properties nationwide, which includes all 100 million residential properties.  In addition, there is information on the historical sales, transactions, and valuation of each property.  With the depth of this API, there are many things you can create.  Today, we're going to delve into two areas within the Property API: Property Records and Property Sales.


The Property Records Include some of the following data points:

  • property records
  • property assessments
  • property tax figures

What kinds of questions can data from the /property resource help answer?

  • What properties fall within a radius of a given point (lat/long)?
  • Are there properties within a zip code with property taxes of a given range?
  • What properties with these specific characteristics can be found within a specific boundary (i.e. school district, neighborhood, or zip code)

Let's say you want to increase your SEO by building property landing pages on your site.  Property landing pages are a great way to increase your online footprint and drive more organic traffic to your website or online application.  More information on the benefits of property landing pages can be found here.   A typical property landing page might look something like this:

Property Landing Page

To get all the information on every property in the country, you simply go to our Developer Platform and make the following request:

This will bring back the characteristics of this specific property.  You can now easily create this content on your site for every property in the country.   When you do a Google Search for a specific residential address, you will notice that all the national portals use this tactic to drive organic traffic. Now you can too.  


The property sales include some of the following data points:

  • Median and average home sales prices
  • Sales volume
  • Percent increase in price, quarter-to-quarter and year-over-year
  • Breakdown by transaction type: existing or new construction
  • Breakdown by property type: single family home, condominium, multi-family, other

You can use this data to build a home sales report for any property in the country.  Any property owners contemplating a home sale in the future would be interested in this information.  If your customers include people looking for new homes or mortgages, this data can be a great content marketing tool to engage prospects and identify movers before they list their property.  Here is an example of what a recent home sales report might look like:

Recent Home Sales

To get all the information on recent home sales, you simply go to our Developer Platform and make the following request:





This will bring back all recent sales based on the boundaries you specify.  You can now create recent sales reports for any property in the country.  If you are interested in receiving this data in HTML format, we can deliver a Recent Sales Report template via API through Accelerate.   So rather than just getting the data, you’ll receive the full sales report to display in your web page, blog, or site.

We call this type of API “Accelerate” because it speeds up your development process.

The Property API from Onboard Informatics is a powerful for engine for your next project.  Next week, we'll explore what you can build with the other two components of this API: AVM and Transactions.  If you are interested in learning more about Onboard Data or our platform, please fill out the form below.