Flexmls® IDX Plugin
Add Flexmls® IDX listings, market statistics, IDX searches, and a contact form on your web site.
Safe pick
Yes — Flexmls® IDX Plugin is a safe, well-maintained plugin to use in 2026. It runs on 1K+ sites, is rated 3.5/5 and was last updated 1 week ago, and scores 80/100 on our health check.
- Actively developed — last update 1 week ago
- Tested with the latest WordPress (7.1)
- Momentum — downloads up 510.3% vs the previous 30 days
Daily downloads
Download spikes usually follow a new release — each site that auto-updates counts as a download.
Rankings
Where Flexmls® IDX Plugin stands todayWordPress.org search rankings
Live position in the plugin search, top 100| Keyword | Position |
|---|---|
| flexMLS | #1 |
| IDX | #4 |
| mls search | #5 |
Version adoption
Share of active sites per release.
Rating breakdown
★★★★★★★★★★ 3.5 from 22 reviews
About Flexmls® IDX Plugin
From the official readme · v4.1Description
Bring the power of your Flexmls subscription into a lead-generating WordPress website, complete with live, up-to-the-second accurate data from your MLS. Integrated with Flexmls Portals, Contact Management, and Saved Searches, you can seamlessly switch between everyday MLS tasks and following-up with your incoming website leads.
INCLUDES 5 WIDGETS
Our powerful and flexible widgets lead your website visitors to and through the home search information they most want to see:
- IDX Search Widget – customize how your visitors search and filter results. Perfect for your home page or as a sidebar for any content.
- Listing Summary Widget – provide a gallery-style, photos-first impression for search results that are easy to browse and navigate.
- Listing Detail Widget – large images in a modern slideshow lead the way beside a quick-look layout that highlights the most important information to buyers.
- IDX Slideshow Widget – slides seamlessly into any webpage. Control sizing and animations for a wide variety of uses.
- Market Statistics Widget – visually demonstrates market trends to help educate buyers and sellers and establish you as the area expert.
UNLIMITED CUSTOM SEARCHES
Turn any Custom Search in Flexmls into an IDX-enabled search that can be applied to select widgets, making it easy to create listing displays for niche markets or neighborhoods.
LEAD CAPTURE CONNECTED TO THE FLEXMLS PLATFORM
Flexmls Portal registration prompts (controlled by you) are baked into the Plugin and entice visitors to sign-up for your branded Portal account, allowing them to save their own searches, favorite listings, and create email subscriptions. Move prospects easily from lead status to active buyers in the Portal once they’re ready.
LIVE DATA
NO EMBARRASSING TIME DELAYS. The Flexmls IDX Plugin is connected directly to the Flexmls Platform via our industry-leading API, meaning listing data on your website will be as up-to-the-second fresh as the data you view in Flexmls yourself!
BROKER VERSION AVAILABLE
The Plugin is available for growing real estate brokers as well as individual agents, with additional features specifically to assist brokers with showcasing their agents and their listings, as well as assigning incoming leads.
WORLD-CLASS SUPPORT
Support is provided directly from the FBS HQ in North Dakota by both email and phone. We also offer a comprehensive Help Center available 24/7, regular webinars, and other tools for success via our Success Academy at www.fbsproducts.com.
30-DAY RISK-FREE EVALUATION PERIOD
We don’t offer 7-day trials with dummy data because we don’t believe that’s an effective way for you to test-drive the product. We know that websites come together in a matter of weeks not days, which is why we give you a whole 30 days to evaluate our product, risk-free, with your own live and local MLS data.
Resources
Get a Key & Secret
Help Center
Installation
The Flexmls® IDX WordPress Plugin is available ONLY to agents and brokers with access to Flexmls and requires an annual subscription to activate listing data within the plugin.
- You can download the plugin at any time for free and install it on your website but, to activate the Plugin, you must first sign up for a subscription or call 1-866-320-9977. We offer a 30-day, risk-free evaluation period with live data from your MLS.
- Once your subscription is activated, we will ensure all your MLS approvals are handled and you will receive an email with an Activation Key and Secret code which connects the Plugin to Flexmls data and your own Flexmls Portal.
- The Activation Key and Secret Code need to be pasted into the Account tab in the Flexmls IDX Menu within the WordPress dashboard.
- For further information on the installation of widgets on pages or posts, please visit our support site.
Frequently asked questions
Do I need to be approved for Flexmls® IDX by my local MLS and FBS in order to use this plugin?
Yes, this plugin requires an API key that is only available to approved members.
How do I obtain plugin credentials?
Please call FBS Broker Agent Services at 866-320-9977 or Send us a message here to purchase a key to activate your plugin.
Changelog
4.1
Security & Stability:
• Enhanced security for authentication, settings, and contact forms
• Improved search engine optimization by fixing URL duplication in search results
• Resolved various PHP warnings to improve site performance and stability
Compatibility & UI Improvements:
• Resolved a performance conflict with the Avada theme in the WordPress admin
• Updated plugin setup messages for better clarity
• Fixed compatibility warnings with the latest WordPress color pickers
* Fixed Portal Registration Popup not showing when page-view thresholds were set to 5 or higher
4.0.1
Efficiency Updates:
* Implemented lazy-loading for listing detail maps to improve page performance
* Added support for displaying Open House End Times in the V2 Listing Summary and Template
* Addressed various warnings for PHP version 8.5
* Resolved an issue where the IDX Link Select2 dropdown failed to initialize in the WordPress Widgets and Customizer areas
* Implemented various security hardening measures and authentication stability improvements
4.0
Improvements & New Features:
* Detect if Flexmls portal is disabled and notifying the plugin user
* Added instructions for adding widgets to the Credential Page
* Reorganized settings by moving Listing Summary and Listing Detail to their own tabs
* Implemented No-JS SourceMLS method for improved compatibility
* Added srcset support for listing images to improve loading performance
* Added detection for Version 1 Listing Templates or Market Stats usage
* Implemented AJAX Infinite Scroll for IDX Resource Selectors
* Added a static ‘Save Settings’ button across all settings screens
* Enabled full-size image viewing by clicking photos in Version 2 templates
* Added Search Widget background color settings
* Introduced a new One-Line IDX Search widget options
* Added optional open house date/time display on Version 2 listing cards
Efficiency Updates:
* Fixed HTML printing issues in IDX Search iframe mode
* Resolved invalid URL generation in SmartFrame search when Price is blank
* Fixed a fatal error in the Listing Detail Widget when using Elementor
* Updated Listing Detail Pages to correctly handle user-defined fields from API payloads
* Expanded filtering capabilities for specific agent lists
* Resolved various PHP warnings for compatibility
* Fixed Google Maps not displaying in the Listing Detail widget
3.18.2
Efficiency Updates:
* Option to toggle ‘Contact Agent’ visibility on closed/sold listings.
* Listing Address duplication in IDX Slideshow for listings with empty fields
* Resolved API Accounts Error
* Map Listing detail links now correctly include the MLS Share parameter
3.18.1
Efficiency Updates:
* Added support for Selling Office IDX requirements, ensuring proper display for Sold and Closed listings
* Improved the Sent Message confirmation logic for the Contact Agent form within the V2 Listing Template
* Eliminated an issue causing duplicate Location Search fields when using the Elementor widget
3.18
Efficiency Updates:
* Fixed image stacking issues by applying display: inline-block styling – Version 1 Listing Templates.
* Corrected listing summary layout breakpoints for widgets inside hidden tabs.
* Resolved PHP 8.x fatal errors and WPBakery crashes via improved data handling.
Improvements:
* Added request throttling and a manual “Retry Connection” button for license activations.
* Migrated Gutenberg blocks to Block API v3 for WordPress 6.9+ compatibility.
* Added support for second parameter to sendBeacon SourceMLS badges
Screenshots
For developers
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FAQ
Flexmls® IDX Plugin: quick answers
Straight answers, pulled from live WordPress.org data.
Live data from WordPress.org · checked Sep 26, 2026
Is Flexmls® IDX Plugin free?
Yes. Flexmls® IDX Plugin is free to download and use from the official WordPress.org plugin directory.
Is Flexmls® IDX Plugin safe to use in 2026?
Yes — Flexmls® IDX Plugin is a safe, well-maintained plugin to use in 2026. It runs on 1K+ sites, is rated 3.5/5 and was last updated 1 week ago, and scores 80/100 on our health check.
How many websites use Flexmls® IDX Plugin?
Flexmls® IDX Plugin is active on 1K+ WordPress websites and has been downloaded 148,319 times since it launched in January 2011. It was downloaded 4,577 times in the last 30 days.
Does Flexmls® IDX Plugin work with WordPress 7.1?
Yes. The developer has tested Flexmls® IDX Plugin up to WordPress 7.1.2, the latest release. It requires WordPress 5.0 or newer.
What PHP version does Flexmls® IDX Plugin need?
Flexmls® IDX Plugin requires PHP 7.4 or higher. Most hosts run PHP 8.x today, so it works on any modern WordPress hosting.
When was Flexmls® IDX Plugin last updated?
The latest version, 4.1, was released on September 17, 2026 (1 week ago).
Who makes Flexmls® IDX Plugin?
Flexmls® IDX Plugin is developed and maintained by flexmls.
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