A Guide to MLS® APIs in Canada

If you’re a developer building a website or an app for a real estate business in Canada, you’re probably looking for real estate APIs to help you integrate market listings from their MLS®. You’re also likely overwhelmed and not sure where to begin. Thankfully, this guide exists to explain everything you need to know about MLS® APIs in Canada, including important considerations for crafting your solution.

REALTOR.ca DDF®

The closest thing to a nationwide real estate API in Canada for MLS® listings is the REALTOR.ca DDF® (Data Distribution Facility). REALTOR.ca DDF® aggregates listing data from most of the regional real estate associations across the country.

REALTOR.ca DDF® provides substantial national reach, with approximately 65% of Canadian listings accessible through the platform. This represents a significant foundation for buyers, sellers, and technology partners seeking a unified marketplace. For brokerages not yet participating, joining DDF® offers an opportunity to expand their listings’ visibility and contribute to a more comprehensive national solution that benefits the entire real estate ecosystem. Consider opting in to help strengthen Canada’s digital real estate infrastructure.

Limitations of REALTOR.ca DDF®

First, REALTOR.ca DDF® provides access to active listings across Canada. For applications focused on current market activity and active property searches, this is a solid solution. However, if your solution requires sold and historical listings data or features that depend on sold data analytics, you’ll need to supplement with additional data sources.

Second, REALTOR.ca DDF® includes approximately 65% of active listings in Canada. The remaining listings come from brokerages that have not opted in, and certain provinces like Quebec, Manitoba, and Newfoundland do not participate at all. If you’re working with a real estate company from one of these provinces, this solution won’t work for you.

Regional MLS® APIs in Canada

Given these limitations, the alternative is gaining direct access to regional MLS® APIs. This approach is necessary if you’re shipping features dependent on sold and historical data or require access to all active listings.

Popular MLS® Systems in Canada Offering Real Estate APIs

Here are some of the prominent MLS® Systems in Canada that offer real estate APIs:

• TRREB (Toronto Regional Real Estate Board)
• ITSO (Information Technology Systems Ontario): ITSO aggregates listings from various associations throughout Ontario. For more information, visit ITSO.
• OREB (Ottawa Real Estate Board)
• RAHB (REALTORS® Association of Hamilton-Burlington)
• WECAR (Windsor-Essex County Association of REALTORS®)
• Pillar 9™ Technologies: Pillar 9 aggregates listings from various associations throughout Alberta. For more information, visit Pillar 9.
• RAE (REALTORS® Association of Edmonton)
• GVR (Greater Vancouver REALTORS®)
• FVREB (Fraser Valley Real Estate Board): Available through GVR API.
• CADREB (Chilliwack and District Real Estate Board): Available through GVR’s API.
• AOIR (Association of Interior REALTORS®)
• VREB (Victoria Real Estate Board)
• VIREB (Vancouver Island Real Estate Board)
• NSAR (Nova Scotia Association of REALTORS®)
• Centris: Quebec does not offer real estate APIs. For more information, visit Accessing Real Estate Listing Data in Quebec.

Important: MLS® APIs Are Not Turn-Key Solutions

It’s crucial to understand that most MLS® Systems provide APIs for data replication. This means they’re not designed to plug directly into your website or app. As a result, using an MLS® API directly implies you’ll have to:

• Create your own data infrastructure.
• Set up processes to periodically refresh the data.
• Set up processes to download and optimize listing photos.
• Set up your own CDN.
• Create your own API/backend to plug into your website or app.

In short, maintaining an MLS® data infrastructure involves significant upfront and ongoing work.

Consider Solutions Like Repliers Before You Reinvent the Wheel

Fortunately, there are solutions like Repliers, a comprehensive suite of real estate APIs designed to integrate directly into your solution. With Repliers, you don’t have to manage MLS® connectivity or create your own data infrastructure. Moreover, you can leverage dozens of powerful features. Repliers’ MLS® APIs allow you to accelerate development and leverage economies of scale to keep costs low without compromising user experience and user interface design.

By choosing Repliers, you’ll be in good company. Leading innovators in Canadian real estate, such as Wahi, Buy.ca, and Pine (formerly Properly), use Repliers as their MLS® API solution. Repliers simplifies website and app development for real estate professionals and companies of all sizes.

Get Expert Guidance

Navigating the complexities of Canadian MLS® APIs and integrating them seamlessly into your solution can be challenging. However, we’re here to help. Schedule a call with one of our expert team members to discuss your specific needs and find out how Repliers can simplify development, reduce costs, and speed up your launch.