Bring live MLS United listings into your own WordPress site. Each one becomes a real page on your domain. MLS Import connects through the Spark API. It checks for updates every hour by default. Try it free for 30 days. Then it's $49 a month.
MLS United, LLC is the single MLS for Mississippi. It was founded in 2021, with its bylaws approved in August 2021 (Bylaws). Three REALTOR groups came together to create it. This MLS is open, meaning you don’t need to be a REALTOR to join.
The groups involved were the Gulf Coast Association of REALTORS, Central Mississippi REALTORS, and Northwest Mississippi REALTORS. They aimed to build a new MLS with "more data, more services, and more access." This MLS replaced their three previous MLSs (MLS United FAQ, 2021).
MLS United operates one database, not a data share between separate MLSs. This allows members to see all the data for the entire area. A Board of Managers oversees the MLS, made up of nine members appointed by the Member Associations (Bylaws). Joe Rogers serves as the CEO (MLS United staff). The office is located in Ridgeland.
MLS United reports over 7,000 users (MLS United vendor sheet, Spring 2026). It has more than 160,000 listings since its launch and holds over 730,000 historical records (The MLSU Story). These numbers reflect totals over time, not current homes for sale.
The data is ready for websites. RESO certifies its Web API (RESO certificates). That's the same RESO Web API that MLS Import reads.
You don’t need to be a REALTOR. MLS United welcomes "all real estate licensees who meet application requirements" (MLS United FAQ).
This refers to the broker or principal broker. They hold the MLS membership for the firm.
This usually means an agent, appraiser, or broker associate. A Subscriber accesses the MLS through the broker's membership.
1. A copy of your active Mississippi real estate license. The form requires your license number.
2. A Letter of Good Standing if you were part of a real estate group in the past three years. This could be a REALTOR group or an MLS. The letter must come directly from that group.
3. Submit a complete form. Staff only process full forms.
1. Email the form to [email protected].
2. Pay online. They do not accept paper checks or cash.
3. Forms sent after 3:00 pm may not be approved the same day.
4. New Participants must complete orientation within 90 days of access (Bylaws).
The service area is the state of Mississippi (Bylaws, Art. 3). It takes in the old Gulf Coast, Central and Northwest areas. Members must enter any listing they have in the state into MLS United (MLS United FAQ, 2021).
For your site, that means one feed for the whole state. You may not want all of it. MLS Import lets you filter by city, county, ZIP code, price range, property type, or agent or office ID. MLS United lists five types:
You pay these dues straight to MLS United. They are not part of the MLS Import plan we bill. There are two price tiers. One is the standard tier. The other is the "Shareholder/Partner Affiliated" tier (MLS United Fee Policies, updated March 4, 2026).
MLS United's fee policy sets these billing rules:
1. You are billed twice a year.
2. The bill comes 45 days before it is due.
3. Bills are payable as of February 15 and August 15.
4. Pay by April 1 or October 1 to avoid suspension and a reconnect fee.
5. Auto-draft runs on March 1 and September 1 (MLS United Billing Checklist).
6. MLS service fees are not refunded.
7. The Participant is responsible for the bill. Subscribers get billed as a courtesy.
MLS United does not list a data feed fee. Its fee policy says to contact [email protected] "for API data access fees."
1. MLS United dues: $370 per 6 months, or $270 on the Owner/Partner tier (fee policy).
2. Spark: $50 a month for each MLS you get data from (Spark FAQ).
3. MLS Import: $49 a month after a 30-day free trial (pricing).
MLS United runs on Flexmls. Members sign in once on a dashboard. From there, you can access the MLS and your tools. You can also sign up for training and events, and view or pay your bills. The "Login" link on mlsunited.com takes you to the login page. For help, call MLS United at 601-755-6578.
The feed uses the RESO Web API. RESO lists MLS United (M00000070) as Certified Current. This covers Data Dictionary 2.0 and Web API Core 2.0.0. All three test reports ran on the Spark API from FBS (see RESO certificates here).
MLS United's vendor sheet states it has "two API platforms." It is also "recognized for leadership in RESO Web API adoption" (vendor sheet here). For your site, the route is Spark. MLS Import reads the feed using one Spark token. No coding is required.
Your MLS United subscription includes tools like RPR, ShowingTime, Zipforms, and CloudCMA at no extra cost. Check the full list on the MLS United products page (here).
MLS United data comes through the Spark API. Spark offers a RESO Web API. MLS Import connects with Spark using one token. Here’s the process, in Spark's order.
Register as a developer for free. Your account activates within 3 business days. You’ll then receive demo keys. Note, demo data is not the same as live data.
Select IDX, VOW, or Private (back office). This must match your data usage. Refer to the next section.
Log in and search for MLS United. First, add a payment method. Not all MLSs have data plans. If you find one, select "Purchase with approval."
Apply to MLS United. Email [email protected] or use the IDX/API Application. Explain what you’re building, who will see the data, and your role. Include your Flexmls username, or request a "generic agent" key.
The MLS decides on key issuance. If you’re on the plan path, MLS United will get an email for approval. Your key will arrive via email.
In MLS Import, select "MLS United via Spark." Paste your Spark access token. Then, submit a support ticket. We will activate MLS United for your site.
The IDX/API Application requests:
1. Your company name and the developer's name
2. Your address, website, email, and phone number
3. Your years of experience in real estate tech
4. How you plan to use the feed
5. A product description and a screenshot
6. The type of access: IDX, VOW, Back Office, or Other
7. Spark API or Bridge API, and whether you have an account there
The form is designed for vendors. If you’re an agent or broker, ask [email protected] which path suits you.
Signing up is free. After accessing data from your first MLS, Spark charges $50 a month per MLS. Additional keys for one MLS incur no extra cost (see Spark FAQ). Inquire at [email protected] about MLS United data fees.
IDX displays listings to anyone visiting your site. MLS United's Rules state you must refresh data at least every 12 hours (Rule 18.2.5). MLS Import checks for updates every hour by default.
A VOW shows listings only to logged-in visitors. The same rules require refreshing at least every 3 days (Rule 19.9).
This access is for your internal tools. The public cannot see it. Spark refers to this role as Private.
MLS Import brings listings in as real posts on your domain. Thus, these MLS United rules apply to your pages (Rules and Regulations, amended 06/09/2026).
1. Your brokerage name (18.2.7).
2. The listing firm. Include the listing Participant's email or phone (18.2.12).
3. The listing agent (18.3.4).
4. The MLS as the data source (18.3.7).
5. A note stating the data is "for consumers' personal, non-commercial use" (18.3.8).
6. A note indicating the data is "deemed reliable but is not guaranteed accurate by the MLS" (18.3.8).
1. Expired or withdrawn listings (18.3.12).
2. Seller or occupant names, phones, or emails (18.3.13).
3. The type of listing agreement (18.3.1.1).
4. Private fields, such as showing notes (18.3.1).
5. Any field not marked for display by the MLS (18.3.1).
6. Other members' IDX listings from offices without rights in this MLS (18.3.10).
Opt-out A seller can keep a listing off the web by using the Seller IDX Opt-Out Form (18.2.3).
No Comments A seller can disable comments and reviews on their listing (18.2.8).
No Value Estimate A seller can turn off the automated value estimate (AVM) on their listing (18.2.8).
MLS United decides who gets a data key. Once the MLS says yes, MLS Import can bring your listings in.
MLS United, LLC is one MLS for the state of Mississippi. Three REALTOR groups formed it in 2021. They were Gulf Coast, Central Mississippi and Northwest Mississippi. It is an open MLS. Licensees who meet the rules can join. It runs on Flexmls.
It covers the state of Mississippi. It took in the old Gulf Coast, Central and Northwest MLS areas. Members must enter any listing they have in the state. Service centers sit in Nesbit, Ridgeland and Gulfport.
No. MLS United is an open MLS. It is open to all licensees who meet the application rules. You send a copy of your active Mississippi real estate license. You email the form to [email protected] and pay online.
A standard Subscriber pays $370 per 6 months. The Owner/Partner tier pays $270. New users, or users away more than 60 days, also pay an access fee. It is $250, or $100 on the Owner/Partner tier. See all fees. For data feed fees, email [email protected].
Yes. MLS United has a RESO-certified Web API. It runs on the Spark API. MLS Import reads that feed with one Spark token. It works with any WordPress theme, and you can try it free for 30 days.
Sign up on Spark. Check the Spark Datamart for an MLS United plan. If there is none, email [email protected] or use the IDX/API Application. Once you have your token, paste it in MLS Import and send us a ticket. Any theme works. It's $49 a month after a 30-day free trial.
MLS United's Rules and Regulations say an IDX site must refresh at least every 12 hours (Rule 18.2.5). A VOW site, where visitors log in, must refresh at least every 3 days (Rule 19.9). MLS Import checks for updates every hour by default.
No. Rule 18.3.12 says showing expired and withdrawn listings is not allowed. Sellers can also keep a listing off the web with the Seller IDX Opt-Out Form. MLS Import can remove off-market listings when it syncs.
Use the "Login" link on mlsunited.com. It opens the MLS United dashboard. You sign in once there. Then you can open the MLS, your tools and your bills. For help, call MLS United at 601-755-6578, Monday to Friday, 9 a.m. to 4:30 p.m.
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