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Introduction to IDX

Expand the way you promote listings. Collaborate with other NorthstarMLS brokerages in displaying shared listings on your brokerage or agents’ websites with an Internet Data Exchange (IDX) feed.

Overview of IDX

Through IDX (also called Broker Reciprocity), NorthstarMLS brokers can display listings on each other’s brokerage websites. As a broker, you can participate in IDX by adding the shared IDX feed to your brokerage or agents’ websites. A RESO Platinum Certified MLS provider, NorthstarMLS empowers more than 60 IDX providers using MLS Grid Web API, which provides uniform licensing, data feeds and compliance to get you listing data easier and faster. Choose one of the existing IDX providers or add a new data vendor to the list. Any new vendors must be set up through MLS Grid and NorthstarMLS will review all requests. If approved, we provide licenses only to the extent permitted by their agreements.

IDX Resources

For any questions about IDX, contact NorthstarMLS COO Michael Bisping at or 651-251-3208. MLS Grid can be contacted via email at or

MLS Grid Overview

MLS Grid Resources

MLS Grid Frequently Asked Questions

Who Is the MLS Grid?