Austin MLS

Austin MLS and Its Switch to RESO API

Real Estate Organization of Standards introduced RESO API as an alternative to RETS in 2017. Non-Realtor members were able to access this API in the following year. 

Austin MLS, which is also known as ACTRIS, has switched to RESO API. The move has been a unanimous one by all members of the MLS Grid

Let’s get some information about the MLS and see how they have benefited since they made the switch:


Austin MLS is officially known as Austin/Central Texas Realty Information Service or ACTRIS. 

It started operation with its current name in 1998. It was a period of time when Austin and central Texas was enjoying a record-high growth in sales. 

ACTRIS offers the following services:

  • Brokerage Multiple Listing Service 
  • Leasing management service 
  • Residential Leasing management service 

Based in Austin, ACTRIS coverage area is 18 counties in central Texas. You can see the region map below:

  • Bastrop
  • Bell
  • Blanco
  • Burnet
  • Caldwell
  • Comal
  • Fayette
  • Guadalupe
  • Gillespie
  • Gonzales
  • Hays
  • Lampasas
  • Lee
  • Llano
  • Milam
  • San Saba
  • Travis
  • Williamson



Like most major MLS in the country, ACTRIS takes advantage of Matrix system, which is a free signature and document management service. The high accuracy of Matrix system guarantees precision and up-to-date-ness of MLS data. 

Services to MLS are accessible by a bi-annual fee. Only members of the NAR will be able to use the listing data.

Organic RESO API

The Switch to RESO API

ACTRIS made the switch to RESO API on September 25, 2018. It is powered by CoreLogic API server 4.

It should be noted that all ten members of MLS Grid as of August 2019, are 100% RESO compliant.

ACTRIS is moderated by ABoR, which is Austin Board of Realtors. The leadership at ABoR maintains that they moved on to RESO API to be able to cope with the complexities of the real estate market in central Texas. 

RESO API can provide MLS users with the following benefits:

  • More manageable hosting and maintenance costs by making it optional (Data on local server or on MLS server)
  • modernized security features
  • Better compliance with mobile and third-party applications

For more information about features of RESO, please check out 6 Benefits for MRED Agents to Switch from RETS to RESO Web API!

How to Integrate Austin MLS RESO Web API listings Into Your Website?

Realtyna offers Organic MLS Integration with the following benefits:
– SEO Value
– Ownership of the data
– Ability to customize field

Also, if you are building a website or app, you can sign up for Realtyna’s MLS Router API, which offers:
– Seamless, updated MLS Listings
– A body for headless structures
– Real estate data such as demographics, market stats, etc

Learn more about MLS Router here:

Why Should I Care?

RETS and RESO API are now the two major technologies across the MLS world. Not to mention, they have revolutionized the concept of standardization in real estate and continue to do so. 

RESO, which is the ISO of real estate business, introduced RESO Web API in 2017 and has promised to make it the lead technology for MLS providers in the coming future. 

Should you make the switch will depend on so many factors involving your business and MLS. 

For more information about RESO API, check out this animation:


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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.

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