IDX stands for Internet Data Exchange and covers a wide range of software products manufactured by third-party vendors for MLS subscribers. In laymen’s terms, IDX is a search engine that’s attached to your website. Have you ever been on a Realtor or broker website and saw that they have their own search engine that allows the public to perform a search? That’s an IDX. While some details may differ between IDX products, they are all public-facing tools that allow clients to search MLS data. This is done through a feed that goes out to IDX participants.
How do listings get to an IDX?
Your broker opts-out of the IDX program. This is different than Listing syndication, which is by opt-in only.
How do I get an IDX website or IDX on my website? Is there a vendor list?
MLS subscribers have the option of putting an IDX software product on their website or having a vendor build a website to allow their clients to search the MLS. Contact an IDX vendor from our IDX vendor list. Contact your broker if you want to work with vendor not on this list, as it is up to them.
Note from the editor – the IDX vendor list is not an endorsement of vendors but a list of vendor choices. The IDX solutions below range from simple websites to full scale relationship software.





Anonymous
I have an Live Open house app that locates current live open houses in the area at the time the open house is live. Can I implement the IDX into the app so all the live open houses on the MLS show on the app?