Join the MLS

When you join OneKey™ MLS, the new regional MLS for Long Island, Manhattan, Westchester, and points north,  your listings take center stage on onekeymls.com, a consumer portal run by REALTORS® for the benefit of brokers, not profits.

One Broker, One Listing

Only listing agents appear on their listings. They’re prominent and obvious — so consumers always know who to call first. No broker advertising, ever.

Accurate and Comprehensive Data

Data from more than 100 sources backs up the accuracy of the listings, protected by powerful business rules and brokers to enforce accuracy.

Manhattan Property History

Check current Manhattan listings against verified data on every listing in the City, including address, amenity, tax and building sales history.

44,000 New Colleagues

OneKey™ MLS represents 44,000 REALTORS® and thousands of listings. It’s the largest and most powerful MLS in the metropolitan New York area.

Connect and Collaborate with Clients

Coming Q1: Create a profile for your clients, and invite them to share and view properties you recommend.

Support When You Need It

Humans pick up the phone when you need them. See something wrong with a listing? Report it and get it fixed.

OneKey™ MLS empowers New York brokers and agents with services and accurate data. We don’t just make promises — we deliver real MLS services every residential broker can use, right now.

Find Out More About OneKey™ MLS

To join OneKey™, your brokerage must become a member of one of the REALTOR® associations that operate onekeymls.com. Join more than 1.3 million professional, ethical REALTORS® and build your business in New York and beyond.

Long Island Board of REALTORS®, Inc.

The Long Island Board of REALTORS®, Inc. (also known as LIBOR) is a 29,000 member not-for-profit trade association that serves real estate professionals throughout Nassau, Suffolk and Queens counties. LIBOR is the fourth largest local REALTOR® Board in the United States.

Hudson Gateway Association of REALTORS®

The Hudson Gateway Association of REALTORS® (also known as HGAR) is a 14,000 member not-for-profit trade association that serves real estate professionals throughout Manhattan, Bronx, Westchester, Rockland, Dutchess, Orange, Sullivan, Ulster and Putnam Counties.