
Aspen Glenwood Springs MLS (AGSMLS) IDX Real Estate Websites
Beautiful, semi-custom REALTOR® websites with live AGSMLS MLS listings, built for agents and brokers across Aspen, Glenwood Springs, and the Roaring Fork Valley.

Beautiful, semi-custom REALTOR® websites with live AGSMLS MLS listings, built for agents and brokers across Aspen, Glenwood Springs, and the Roaring Fork Valley.
Aspen/Glenwood Springs MLS (AGSMLS) is jointly owned by the Aspen Board of REALTORS® and the Glenwood Springs Association of REALTORS®, serving more than 900 members across one of Colorado’s most distinctive luxury real estate markets – from Aspen and Snowmass down to Glenwood Springs, Rifle, and Craig. OSI IDX connects directly to your AGSMLS feed. As a result, your website displays live, accurate listing data pulled straight from the MLS, not scraped or delayed third-party data. Whether you’re a ski-town specialist listing trophy Aspen properties or a Roaring Fork Valley agent covering Carbondale, Basalt, and New Castle, our agent and broker websites give buyers a real-time search experience while keeping every lead on your own domain – not a vendor’s.
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A direct AGSMLS feed is only part of the equation. In addition, here’s what sets an OSI IDX website apart from other AGSMLS IDX vendors:
Does OSI IDX work with Aspen/Glenwood Springs MLS (AGSMLS)?
Yes. OSI IDX is set up to connect directly to the AGSMLS Flexmls feed, so your website displays live listing data from Aspen, Snowmass, Glenwood Springs, and the surrounding Roaring Fork Valley.
Can I switch to OSI IDX from another AGSMLS IDX provider?
Yes. We’ll build your website on a staging domain so you can review it before going live, with your branding and AGSMLS listings already set up, then switch your domain over without disruption.
How long does it take to launch an AGSMLS IDX website?
Most OSI IDX websites launch within 5–7 business days of receiving your content and branding preferences.
What areas does the AGSMLS IDX feed cover?
AGSMLS coverage spans the Roaring Fork Valley and West-Central Colorado, including Aspen, Snowmass, Basalt, Carbondale, Glenwood Springs, New Castle, Rifle, and Craig.
How often are AGSMLS MLS listings updated on my website?
OSI IDX updates listing data every 10 minutes from Aspen Glenwood Springs MLS (AGSMLS). Your AGSMLS listings update automatically, so buyers always see current, accurate inventory without manual refreshes.
Is there an extra fee for the AGSMLS IDX feed?
Yes, there’s a $25/month fee for the AGSMLS IDX feed, in addition to your OSI IDX website price. However, we handle the AGSMLS license setup and feed connection for you as part of onboarding, so there’s nothing extra for you to manage. View full pricing details
Can I include other MLS’s on my website?
Yes. In addition to AGSMLS, you can include multiple MLS IDX feeds on your website. You must be a member of the MLS and each MLS feed is a flat $25/month. When including multiple MLS IDX feeds, all data is seamlessly integrated with your website’s search functions, featured listings, homepage custom property scrolls and more.
Do I need to be a member of both the Aspen Board of REALTORS® and GSAR to get an AGSMLS IDX website?
No. You only need active AGSMLS access through either the Aspen Board of REALTORS® or the Glenwood Springs Association of REALTORS® – OSI IDX will connect to your feed either way.
From ski-in/ski-out Aspen estates to Roaring Fork Valley ranches, your AGSMLS website puts every community below in front of buyers, so they can search by location with ease.
AGSMLS covers communities throughout the Roaring Fork Valley and West-Central Colorado, including:
Join Roaring Fork Valley agents who’ve made the switch to a faster, better AGSMLS IDX REALTOR® website. See what’s included
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