St. Louis MARIS IDX Real Estate Websites for REALTORS®
A direct MARIS IDX feed for agents and brokers across St. Louis, St. Charles, and the greater Missouri-Illinois metro region.
52 Counties Covered
Approved MARIS IDX Vendor
IDX Updated Every 10 Min
How Your MARIS IDX Website Works
Your MARIS IDX website connects directly to the Mid America Regional Information Systems feed, giving you accurate, current listings across St. Louis and the surrounding region without relying on a third-party data provider. Whether you’re working with buyers in the city, St. Charles County, or one of the outlying communities MARIS covers, your real estate websites stay in sync with the MLS around the clock. Instead of a generic template, you get a semi-custom site built around your brand, backed by flat, all-inclusive pricing and real support from a team that’s been in this business since 1982.
Trusted by 1,000+ REALTORS® & Brokers
Why Agents Choose OSI IDX
A direct MARIS feed is only part of the equation. Here’s what sets an OSI IDX website apart from other MARIS IDX vendors:
- Flat, all-inclusive pricing. One price covers your website, hosting, and your MARIS IDX feed – no tiered plans or feature upsells. See full pricing details
- Direct MLS data feed. Listings sync straight from your MLS every 10 minutes – accurate, current inventory, not a stale or third-party feed.
- Semi-custom design. Your site is built around your brand, not a one-size-fits-all template shared with hundreds of other agents. Browse sample websites
- Family-owned since 1982. OSI IDX is a product of OSI Express, a family-run real estate technology company with over four decades in the industry – not a VC-backed startup.
- US-based, real support. Talk to a real person on our support team, based in the US, not an offshore call center or a chatbot.
Frequently Asked Questions
How often do listings update on my MARIS IDX website?
Your OSI IDX website pulls listings directly from the MARIS feed and refreshes automatically every 10 minutes, so buyers always see current inventory.
How long does it take to launch my MARIS IDX website?
Most sites launch in 5–7 business days. We’ll work with you on content and design preferences to get everything ready for your MARIS feed to go live.
How much does the MARIS IDX feed cost?
The MARIS IDX feed is $25/month, separate from your website plan. See full pricing details
Does my website cover all 52 counties MARIS serves?
Yes – your IDX feed pulls listings from across the full MARIS coverage area, so buyers searching your site see inventory throughout St. Louis, St. Charles, and the surrounding region, not just one county.
Can I target specific St. Louis-area neighborhoods on my website?
Yes, your site can be built to highlight specific neighborhoods, suburbs, or counties within the MARIS service area based on where you do business.
Do I need to already have MLS credentials to get started?
No – we handle the MARIS IDX setup as part of building your site.
MARIS Coverage Area
MARIS is the regional MLS for the St. Louis metro area, spanning 52 counties across eastern Missouri and southwestern Illinois. Coverage includes St. Louis City and County, St. Charles County, Jefferson County, Franklin County, and communities served by the East Central, South Central, Pulaski County, Mark Twain, Southern Gateway, Bootheel Regional, Lebanon, and Mineral Area boards of REALTORS®, making MARIS one of the largest regional MLSs in the Midwest.
These are the REALTOR® Associations that make it possible:
- St. Louis REALTORS®
- St. Charles County Association of REALTORS®
- Jefferson County Association of REALTORS®
- Franklin County Board of REALTORS®
- East Central Board of REALTORS®
- South Central Board of REALTORS®
- Pulaski County Board of REALTORS®
- Mark Twain Association of REALTORS®
- Southern Gateway Association of REALTORS®
- Bootheel Regional Association of REALTORS®
- Lebanon Board of REALTORS®
- Mineral Area Board of REALTORS®
Join St. Louis agents who’ve made the switch to a faster, better MARIS IDX REALTOR® website. See what’s included
Content
Quick Links
Contact Us
OSI IDX
The easy website platform for
real estate agents and brokers.
support@osiidx.com
9:00am – 4:00pm Central Time M-F
