Rising Use-case for RESO Web API: Headless Real Estate CMS!

When RESO Web API was introduced, for development companies like us, the reason was pretty obvious __  Technology was shifting toward API-based programming. 

It was long due for the Real Estate industry to deliver, and here we go. 

A great transition from RETS / XML format to RESO Web API was exactly what we could expect as continued evolution handled perfectly by

In general, when we are talking about data-sync, I believe the main intention behind RESO Web API was to facilitate it with better technology. 

It used most of the functions of API-based programming in proper syncing, implying well-defined queries, faster handshake, and standardization of industry data which was a headache before RESO Web API.

As we can see, data synchronization has been way more organized since the introduction of RESO Web API. 

Compatible software packages, faster deployment for client-server apps, lighter and faster data exchanges, and countless other benefits are on the horizon. 

However, one unexpected acceleration happened: Rising star of headless apps based on RESO Web API!

And how did that happen? A few cultural, technical, and even psychological reasons are in play. 

One thing’s for sure, the main theme of 2022 __ Simplicity. This will continue in upcoming years, as it has been the result of the recent pandemic. People like to simplify their life now more than before. 

Tech and Real Estate are not excluded. When talking about headless apps, it will eliminate almost 90% of the burden for programming and development. Recently, Ryan Gorman, the CEO of Coldwell Banker said one interesting phrase: Building tech for real estate is a ‘nightmare’. For sure, I understand him, managing a company, building tech for real estate in the past 15 years! 

The complexity of data, variety of requirements by sub-industry clients, and keeping everyone happy with a software flexible enough to address their needs is a multi-dimensional dilemma. 

For most software development professionals, the main challenge is back-end development. Since this is where much of the complexity comes from. I can easily say database design and back-end development take almost 85% of our development resources when it comes to delivering the software and customer service. 

Now, consider a broker or an agent, even the tech-savvy ones dealing with these tech issues and keeping themselves ranked in the competition all based on tech.

So what can be in play to reduce 85% of development resources, especially when it comes to fetching listings, database design for search, and so on? In other words, imagine this 85% back-end development, as a “solved matter”and how? The key is hidden in the nature of the RESO Web API. 

RESo Web API- Headless CMS

A proper setup of an API service can act as back-end data. This will save a hefty amount of development time and resources. 

There is an important factor here that we should consider. Having an API server as the actual serving back-end for front-end or mobile applications needs a real-time response which most of the current RESO Web API servers lack.

This means they will mainly be good for the syndication of listings. And serving the listings should be done on the client’s back-end server. 

At the moment, Realtyna has four solutions to serve the listings based on RESO Web API for connecting real-time applications:

RESO Web API server based on WordPress (between 0.7-0.9 second) 

  • RESO Web API server based on RealtyFeed Cloud Architecture – AWS Amazon  (less than 0.2 second) – This can be used as Headless CMS back-end. 
  • RESO Web API server based on our Realtyna IDX platform. – Clustering (between 0.6 0.9 second) 
  • RESO Web API server based on the MLS provider’s URL and agent based authentication (usually around 0.8 second – 1 second) 

All of these solutions can satisfy the needs of headless applications and reach connections. 


You can see a full list of Realtyna’s APIs here:


Rate our blogs


The opinions or information expressed in this article are those of the author and do not necessarily reflect the official views, policy, or position of Realtyna. The information on Realtyna’s Website is general, for informational purposes only, and is not to be relied upon or interpreted as real estate, legal, accounting, or other professional advice or a substitute. Please discuss anything related to the certification process, professional advice or legal procedures with your MLS providers.

Stay Up To Date

Get the Knowledge you need Delivered Straight to your inbox

No Comments

Sorry, the comment form is closed at this time.