Data Delivery
Explore Your Data Delivery Options
You’ve come to the right place to explore your Stellar MLS data delivery options! At Stellar MLS we believe that brokers, in partnership with their agents, know best how to use MLS listing data for their businesses. Our role at Stellar is to make the data delivery process as easy as possible for brokers and agents who want to display listings on their websites and for brokers who want to distribute listings to third party websites.
API Options
Looking to Do It Yourself (DIY) with an In-House Developer or provide a data feed to a vendor? MLS Grid and Bridge API are solutions geared towards those working with a vendor or if you have your own developers and web designers.
MLS Grid and Bridge API are our Web API solutions for IDX solution and are available now. These options are great if you are creating a custom website with an in-house developer or working with a vendor who does not already offer an IDX solution
Requirements:
- A three party agreement between the Broker, Vendor (in-house developer) and Stellar MLS.
- Ability to demonstrate a fully working application/product. If you are still in development, please let us know and we can provide a sample data set.

Getting Started with MLS Grid:
Brokers - Download our guide here
Vendors - Download our guide here
MLS Grid Technical Documentation
Vendors, when you are ready to start, visit here to kick off the MLS Grid registration process.
IDX OPTIONS
Display MLS Listings on Your Website with IDX
Internet Data Exchange (IDX) gives brokers and agents the ability to display listings on their real estate websites. IDX refers to a set of fields in the MLS that are allowed for public display on the Internet. Whether you have your own privately hosted website, are partnering with an IDX vendor, or are using Matrix's free frameable option, Stellar’s data delivery team can connect you with the resources you need to implement IDX on your website.
Depending on your technical needs there are several options to help you implement an IDX display on your website, including:
Free Frameable IDX Configuration Generated from Matrix
CoreLogic®, the vendor who provides Matrix for Stellar MLS customers, has developed a free, frameable IDX configuration for agents* and brokers to use in their IDX implementation. This free, basic IDX option is available to brokers and agents from inside of Matrix under the “My Matrix” tab. Many customers find that they do not need an IDX vendor to implement this basic option on their websites. We’ve created a guide for customers who are interested in this option.
*Agents do not need permission from their brokers to implement this option on their websites.
Work with an IDX Vendor
There are numerous vendors who specialize in IDX for Real Estate in the marketplace. Many brokers and agents prefer partnering with an IDX vendor because it takes the stress of understanding the technical part of web development off of them. If you are interested in partnering with an IDX vendor to display listings on your website, follow these steps:
- Start by choosing an IDX vendor. It’s important to note that your costs may vary depending on the vendor and IDX options you choose.
- Ask your vendor to set you up in MLS Grid or Bridge API.
Custom Development Options (Non-IDX)
Looking to build the next great real estate app or integrate your office's data into a tool you're using in your firm? We are here to support you in your venture. These options are for those who are working with a vendor or have in-house development resources for custom development using data from the MLS.
Not sure which option is right for you?
Email us at datadelivery@stellarmls.com or fill out our questionnaire with your use case and we will reach out to discuss the next steps.
Stellar MLS is a Proud Member of RESO

Real Estate Standards Organization, or RESO, was incorporated in November 2011 as an independent, not-for-profit trade organization that was previously a section of the National Association of REALTORS®.
RESO actively develops, adopts, and implements open and accepted data standards and processes across all real estate transactions. RESO provides an environment for the development and implementation of data standards and processes that facilitate software innovation, ensures portability, eliminates redundancies, and obtains maximum efficiencies for all parties participating in real estate transactions.
RESO has more than 850 active members, including NAR, multiple-listing services, real estate associations, brokerages, and industry technology providers.
Distribute Your MLS Listings to Third Party Websites
The choice to distribute listings is 100% up to the broker. For brokers who want to publish their listings on third-party websites, there are several direct distribution options offered through your Stellar MLS subscription at no additional cost. We also partner with ListHub as a distribution option.
Listing Distribution Per Listing in Matrix
Within Matrix during listing input, there are choices for distribution of your listing to MLS-owned consumer websites such as Realtor.com, Apartments.com, Zillow Rentals, and International MLS. This option provides the flexibility for you to accommodate the owner’s request to choose exactly where they want the listing displayed.
Note: Opting into these distribution options within Matrix at the listing level are available only if the broker of an office has permitted distribution.
Listing Distribution with ListHub
Brokers can set up a ListHub account for free (with options to purchase reports). Visit https://www.listhub.com/ to log into your account or to learn more about ListHub.
Learn more about your listing distribution options by clicking the button below.