McAllen MLS (GMAR) IDX Real Estate Websites
Built for REALTORS® across the Rio Grande Valley who need a fast, reliable GMAR IDX feed on their own branded website.
IDX Updated Every 10 Min
5,000+ GMAR Members
Largest MLS in the Rio Grande Valley
How Your GMAR IDX Website Works
Your GMAR IDX website pulls listings directly from the Greater McAllen Association of REALTORS® feed, giving Rio Grande Valley buyers real-time inventory without ever leaving your site. As the largest agent and broker websites provider serving GMAR members, we build your site around your brand – not a shared template – so you control the design, the leads, and the client experience from search to close.
Trusted by 1,000+ REALTORS® & Brokers
Why Agents Choose OSI IDX
A direct GMAR feed is only part of the equation. Here’s what sets an OSI IDX website apart from other GMAR IDX vendors:
- Flat, all-inclusive pricing. One price covers your website, hosting, and your GMAR IDX feed – no tiered plans or feature upsells. See full pricing details
- No CRM lock-in. Keep the CRM you already use. Leads captured on your site sync directly, so you’re never forced onto a proprietary platform. See CRM integrations
- 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 does my website update with new GMAR listings?
Your OSI IDX website pulls listings directly from the GMAR feed and refreshes automatically every 10 minutes, so buyers always see current inventory.
How long does it take to launch my GMAR IDX website?
Most sites launch in 5–7 business days once we have your content and design preferences.
How much does the GMAR IDX feed cost?
The GMAR IDX feed is $25/month, billed alongside your website hosting. See full pricing details
Does GMAR cover the whole Rio Grande Valley?
GMAR’s MLS spans 13 counties centered on the McAllen-Edinburg-Mission metro, making it the largest MLS service area south of San Antonio.
Is GMAR the largest REALTOR® association in the Valley?
Yes – founded in 1949, GMAR is the oldest and largest REALTOR® association in the Rio Grande Valley, with over 5,000 members.
Can my GMAR IDX website also pull listings from a neighboring MLS?
Yes – if you hold membership or MLS access in a bordering association, we can add an additional IDX feed to the same website for one combined search experience.
GMAR MLS Coverage
GMAR is the oldest and largest REALTOR® association in the Rio Grande Valley, and its MLS covers 13 counties – the largest MLS service area south of San Antonio. Coverage centers on Hidalgo County and the McAllen-Edinburg-Mission metro, commonly called the Upper Valley, and extends across the broader Rio Grande Valley region.
Communities served by your GMAR IDX website include:
- McAllen
- Edinburg
- Mission
- Pharr
- Weslaco
- Alamo
- Alton
- Donna
- Elsa
- Hidalgo
- La Feria
- La Joya
- Mercedes
- Monte Alto
- Palmhurst
- Palmview
- Penitas
- Rio Grande City
- Roma
- San Benito
- San Juan
- South Padre Island
- Sullivan City
Join Rio Grande Valley agents who’ve made the switch to a faster, better GMAR IDX REALTOR® website. See what’s included
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OSI IDX
The easy website platform for
real estate agents and brokers.
support@osiidx.com
9:00am – 4:00pm Central Time M-F
