Bay East Association of REALTORS and the Contra Costa Association of REALTORS (CCAR) are two separately owned, separately governed MLSs serving California's East Bay.
Two organizations, two memberships, two sets of MLS rules.
Both associations run Paragon as the system members search and enter listings in every working day. Bay East's member login resolves to maxebrdi.clareityiam.net. CCAR's resolves to maxebrdi.paragonrels.com.
That shared "maxebrdi" subdomain is suggestive technical evidence that the two associations sit on one common underlying Paragon instance, and both organizations' RESO Data Dictionary reports advertise the same custom field names, prefixed BECCAR_. Neither association says so outright in its own materials, so treat it as an inference rather than a settled fact.
What it doesn't change is the part that decides your paperwork. Bay East MLS and CCAR MLS are separately chartered, with separate rules documents, separate dues, separate billing, and separate RESO registrations. Agents on both sides work in the same software, while the approval and the credentials come from two different organizations that do not speak for each other.
Bay East (UOI M00000087) and CCAR (UOI M00000105) both hold RESO Certified Current status on Data Dictionary 1.7 and Web API Core 2.0.0, per RESO's own public certification registry. Identical status, no gap between them, nothing to weigh up when you pick which association to work with first.
That registry is public, so you can pull either record yourself before you sign anything. The Data Dictionary half is the piece that saves developer hours. Standardised field names cut the per-MLS mapping work, which is why MLS Import maps against the Data Dictionary rather than treating every board as its own custom export.
One real difference does sit between the two associations, and it lives in the provider names on those certification reports.
Both run their member systems on Paragon, and both are RESO Certified Current on Data Dictionary 1.7 and Web API Core 2.0.0, so a feed from either association arrives against the same current standard.
Their certified Web API providers aren't identical, which matters when you scope access, and neither association publishes a self-service application route to one, so the first move is a direct conversation with the MLS department.
Once you hold approved credentials, MLS Import turns that RESO Web API feed into native, indexable WordPress posts on your own domain, no iframe and no vendor subdomain, syncing hourly at $49 a month after a 30-day free trial. It connects one MLS per site, so covering both associations means two site setups.
Bay East started in Alameda County, California in 1922, according to its own history page. It works out of one office at 7021 Koll Center Parkway in Pleasanton, and its own copy puts it at more than 5,700 real estate professionals, with MLS services reaching nearly 5,900 users across the East Bay.
It operates its own MLS, whatever a fair amount of third-party coverage claims. Bay East's own IDX FAQ asks "Do I need to be a member of Bay East MLS to apply for IDX Service?" and answers "Yes." Bay East MLS is a listing service with its own rules document, its own subscribers, and its own RESO registration.
IDX itself carries no MLS-side charge here. The same page says IDX "is a MLS member benefit and provided to members at no cost; however, you are responsible for the fees if the vendor you choose charges for their services."
Two phone lines matter for a website project. The main line is (925) 730-4060. MLS Tech Support, the desk that handles data and tooling questions, is (925) 730-7100.
CCAR was established in 1921. Its own about page and its consumer-facing site ccarhomes.com both give that year independently, which is a useful check when other pages disagree.
It runs two offices. The primary one is at 1870 Olympic Boulevard, Suite 200 in Walnut Creek, open Monday to Friday. A second service center sits at 500 Alfred Nobel Dr., Suite 265 in Hercules, open Tuesdays and Thursdays.
Membership stands at more than 3,800 members across 28 local cities in central and western Contra Costa County, and CCAR's board is drawn from five local districts inside that territory. So it's a county-scale association rather than a regional one.
CCAR's MLS Data Feeds page describes the RESO Web API as the modern way to transport data in real estate, and routes questions to CCAR staff at [email protected] or (925) 295-1270 rather than to a form. Membership questions go to Member Services on that same number, at [email protected].
Each association is covered on its own above. Five of these seven rows come out different, which is the short answer to anyone treating the two as interchangeable.
Founded: 1922
Headquarters: Pleasanton, CA
Members: More than 5,700 professionals
Primary MLS platform: Paragon
RESO certification status: Certified Current, Data Dictionary 1.7 and Web API Core 2.0.0
Certified Web API providers: Bridge Interactive, one
Published REALTOR and MLS dues: Itemized fee schedule published
Founded: 1921
Headquarters: Walnut Creek, CA, plus a Hercules service center
Members: More than 3,800 members across 28 cities
Primary MLS platform: Paragon
RESO certification status: Certified Current, Data Dictionary 1.7 and Web API Core 2.0.0
Certified Web API providers: Bridge Interactive and ICE OpenMLS, two
Published REALTOR and MLS dues: Not published
No. Bay East, CCAR, and bridgeMLS are three separately owned, separately governed MLS organizations. Not one entity under three brand names, and not a joint venture. Bay East and CCAR are the two covered here, and MLS Import connects to either.
The name that causes most of the confusion is a retired one. "East Bay Regional Data, Inc." (EBRD) was bridgeMLS's name before it rebranded, effective April 25, 2017. EBRD isn't a current, separate MLS. A directory still listing it is describing bridgeMLS under a name it dropped years ago, which is why some pages appear to show a fourth East Bay MLS.
bridgeMLS belongs to a third association entirely. That same 2017 release names its owner as the Oakland|Berkeley Association of REALTORS, and says bridgeMLS also provides MLS services to the Delta Association of REALTORS.
Geography is the other reason these two get confused for each other. They share Contra Costa County, and a brokerage working that county line can end up dealing with both.
Bay East, CCAR, and bridgeMLS, along with other Northern California MLSs, share listing data reciprocally rather than merging, through the NorCal MLS Alliance, launched January 20, 2021. Inside Paragon that gives a subscriber a wider search surface without a second login.
Both associations describe the effect in two parts. A single point of entry, where a listing entered in Paragon appears automatically in each participating MLS. And a single search point, where a subscriber searches all of that data inside Paragon, with no second system to learn.
The associations' own published counts do not agree with each other, so no single total holds up. The relationship is the useful fact, not the number.
Bay East's primary MLS coverage runs across Alameda, Contra Costa, and Tuolumne counties, per its own Data Share Coverage page. CCAR's home turf is central and western Contra Costa County, the 28 cities its network page counts. Both therefore cover Contra Costa County, Bay East as one leg of a three-county territory and CCAR as the whole of its own.
Bay East members also carry reciprocal key and lockbox access well past those three counties, into Monterey, San Benito, San Francisco, San Mateo, Santa Clara, and Santa Cruz through data share partners. Keep that separate in your head from listing coverage. A Supra key that opens a door in San Mateo County isn't a licence to publish San Mateo listings.
Both associations publish their membership categories. Bay East lists six on its membership page.
The standard track for a licensee whose primary association membership sits with Bay East.
For a licensee whose primary membership is already held at another association.
For real estate adjacent professionals who do not qualify for REALTOR membership.
Data access without REALTOR benefits, in Bay East's own words. The eKey is optional on this subscription.
For active Supra keyholders coming in through a data share partner, covering the Bay East key area only.
Support staff working under a member, on their own application track.
CCAR's membership application lists five.
The principal, partner, corporate officer, or branch manager who holds membership for the office.
The standard association membership for a licensee under a Designated REALTOR.
The responsible broker who holds MLS participant status directly, which is the status IDX display rights hang off.
An agent or staff member working under a Broker Participant's MLS access.
The appraiser track, with its own participant status rather than the agent one.
Start from the shared baseline: both associations are RESO Certified Current on Data Dictionary 1.7 and Web API Core 2.0.0, so both feeds are delivered against a current standard. The difference between them is the provider column. Bay East's certification report names exactly one certified Web API provider, Bridge Interactive. CCAR's names two, Bridge Interactive and ICE, listed there as "OpenMLS."
Bay East's feed is certified through one provider, Bridge Interactive. CCAR's is certified through two, Bridge Interactive and ICE OpenMLS. That is a fact about whose system passed RESO's testing on each association's behalf.
Bay East runs an approved-vendor and IDX application process through [email protected], or MLS Tech Support on (925) 730-7100. A vendor Bay East has already approved clears in 2 to 4 business days. A vendor it hasn't worked with before takes 3 to 4 weeks.
CCAR routes data-access requests to CCAR staff, at [email protected] or (925) 295-1270, the contact named on its own MLS Data Feeds page.
CCAR defines five feed types on that same page: IDX, VOW, BBO, Broker Feed (brokerage data only), and AVM. Bay East defines four of the same set on its IDX page, without the AVM entry. IDX is the one a public-facing WordPress site runs on, so name it when you write in. Asking for "a data feed" can get you the wrong one.
CCAR publishes what to expect from an IDX feed. Authorized vendors may pull new listing data up to six times a day, and they're required to update listings within 12 hours of any MLS change. Read that against your own sync schedule, and confirm the pull frequency your feed allows when you request it.
So the instruction is short. Contact the association's MLS department directly and ask what a RESO Web API data licence involves, who signs it, and what it costs. Don't expect a public signup form, and treat any page handing you a vendor signup URL for these two with suspicion, because neither association names one.
One product note. MLS Import connects one MLS feed per WordPress site. Bay East and CCAR are two separate MLSs, so covering both means two separate MLS Import site setups at $49 a month each, on two sets of credentials. It's not one combined connection, and no filter setting turns one feed into two (better to find that out now than the week before launch).
Neither association's own site names an application URL, an approving party, a signature requirement, or a fee for reaching Bridge Interactive, or, at CCAR, ICE OpenMLS. Bridge Interactive is named nowhere in either association's published material: not on their IDX pages, not in MLS Data Feeds or MLS Tools, not in membership, and not in their MLS rules.
Nothing published states which of CCAR's two certified providers an integrator should use, or what decides it. Ask the association which of the two your feed would run through, and get the answer before you scope the project.
Bridge Interactive's own website is closed to automated access, so whatever signup process it publishes cannot be read from outside. Treat that as unread rather than absent, and ask the association.
Bay East publishes the exact string an IDX site has to carry, and the text names all three East Bay MLSs rather than only Bay East:
Bay East ©2025. CCAR ©2025. bridgeMLS ©2025. Information Deemed Reliable But Not Guaranteed. This information is being provided by the Bay East MLS, or CCAR MLS, or bridgeMLS. The listings presented here may or may not be listed by the Broker/Agent operating this website. This information is intended for the personal use of consumers and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Data last updated at (ADD DATE & TIME HERE)
That last line is a live field, not boilerplate (the placeholder brackets are Bay East's own). Your template has to print the timestamp of the most recent sync, which means the sync time needs to be readable by the template rather than sitting in a log somewhere. Bay East also requires the disclaimer to be displayed "in a reasonable and readily apparent manner," which is a layout decision worth settling before you build the property template rather than after. Bay East is where this version is published, so confirm with CCAR that the same block satisfies its own requirement.
Bay East's Website Compliance Checklist is four items, and three of them land squarely on your templates:
Read the third one twice before you pick a theme. Attribution is per listing, not per site, so the listing agent's name and firm have to arrive in the feed and land on the detail template. That's a field-mapping question, and it's a lot cheaper to answer while you're choosing which MLS fields to import than after a compliance review. And one more obligation sits on the vendor rather than the site owner: Bay East's agreement requires the IDX vendor to submit a monthly IDX client list before the 5th of each month.
The name of the brokerage firm you operate under, clearly identified.
The agent's state of licensure in a reasonable display, in the CA DRE# 12345678 form.
Listing attribution on every listing detail page: the listing agent's name, that agent's firm name, and a phone number or email address.
The Bay East disclaimer displayed in a reasonable and readily apparent manner.
Association dues, MLS fees, and key fees are separate line items billed by each association directly, and the two don't put the same lines on the same calendar. Bay East's fee sheet runs local, MLS, and eKey July to June, with state and national dues on the calendar year. CCAR bills association dues January through December, and MLS and key fees July through June. MLS Import is billed separately again, by mlsimport.com.
These figures come from Bay East's own fee sheet, for a new REALTOR joining with MLS and Key and paying in full:
After that, the recurring dues split across the two calendars. Local runs $346 a year, MLS $598 a year, and the eKey $272 a year, all on Bay East's July 2025 to June 2026 schedule, the most recent it publishes. State dues are $342 for 2026 and national dues $201 for 2026, on the January to December cycle. An eight-installment plan is available, with an $80 installment fee folded into the first payment (the convenience isn't free).
One Bay East line item lands on the vendor rather than the member, and it has no number attached. Bay East states that an annual licensing fee is required after approval as a Bay East IDX vendor, and it doesn't publish the amount. Ask for it at the same time you ask what the data licence involves.
CCAR is a different picture, and most of it isn't public. It publishes one figure: $120 a year for Individual Affiliate Membership. Its REALTOR and MLS dues live in a separate "Exhibit A" schedule referenced by its membership application and not published on its own site, so there's no CCAR REALTOR or MLS dues number to quote here. Bay East's figures above are Bay East's, on Bay East's billing cycle, and they don't transfer.
What CCAR does publish is the mechanics, on its dues and billing page. New members who join both CCAR and the CCAR MLS at full application fees can claim a $200 rebate by finishing orientation, MLS training, and Code of Ethics training within six months. Refunds carry a $25 processing fee.
CCAR, MLS and key application or setup fees are all waived for active-duty applicants, reservists, and anyone honorably discharged within the last five years. The transfer waiver is narrower: an agent moving from another association, including from a named data share group, gets the CCAR and MLS application fees dropped but not the key fees, and must be an active REALTOR there to qualify.
On July 7, 2026, Bay East's MLS Department announced a new combined IDX data feed for public-facing websites, carrying listing data from Bay East Association of REALTORS, bridgeMLS, Contra Costa Association of REALTORS, BAREIS MLS, MLSListings, and San Francisco Association of REALTORS. Bay East says it is working with its approved IDX vendors on implementation.
Read that list narrowly. It describes what this specific feed covers, and the announcement doesn't explain why any other Northern California MLS is absent from it. It isn't a roster of the NorCal MLS Alliance.
The second thing to keep straight is which layer it sits on. This is a development on the Bay East IDX vendor side, not a RESO Web API mechanism, and MLS Import isn't a confirmed participant. Nothing about it changes how a site connects today: one RESO Web API feed per site, from one association, on that association's own approval. Worth watching. Not something to design a launch date around yet.
California's AB 723 took effect January 1, 2026. Bay East's summary of the new rules, posted December 23, 2025, describes the law as intended to make sure listing photos accurately represent the true appearance of a property and do not mislead buyers.
Bay East separately updated its own MLS rules effective July 6, 2026, moving Cumulative Days on Market to a history tab and adding a new photo display rule alongside it.
For a WordPress site pulling either association's listings, read the rule carefully rather than over-correcting for it. Bay East's article states plainly that the law does not prohibit photo editing. What it requires is disclosure when images have been altered, plus the inclusion of unedited photos so the original can be told apart from the modified ones.
MLS Import serves listing images from the MLS or its image source rather than copying them into your WordPress media library, so whatever the MLS holds is what your property pages show. Photo accuracy in California is now a statutory requirement, not only an MLS courtesy rule.
Bay East posted two status changes this year that show up in the feed, not only in the member interface. On March 23, 2026, it announced that from March 30 the Coming Soon status can be syndicated, with the agent deciding per listing through the Internet Site (Yes or No) field at the time of entry. Existing Coming Soon listings default to Internet Site = No, so nothing starts syndicating on its own.
The second, announced February 27, 2026, launched April 15: a new Sold Off MLS status for properties closed or sold outside the MLS at the seller's request. Bay East's stated reasons are production credit for the agent, better comparables for appraisals and CMAs, and more complete market statistics.
Both land on a template. A new status value is something your property pages have to handle rather than quietly drop, and a syndication flag that varies listing by listing means what arrives in your feed can change without anything changing on your side.
Bay East is an association of REALTORS that operates its own MLS. Its IDX FAQ asks whether you need to be a member of Bay East MLS to apply for IDX service and answers yes.
Bay East MLS is a real listing service, and MLS Import connects to its RESO Web API feed.
No. They're two separately owned, separately governed MLSs. Both run on Paragon and both share listing data reciprocally through the NorCal MLS Alliance, but they hold separate memberships, separate rules, separate dues, and separate RESO registrations.
MLS Import connects one of them per WordPress site.
Yes. Bay East's own IDX FAQ answers that question with a plain yes. Display rights follow MLS membership there, so membership comes first and the feed comes after.
MLS Import handles the WordPress end once the association has approved you and credentials have been issued.
Not to Bay East. Its IDX page calls IDX a member benefit provided at no cost, then adds that you're responsible for any fees the vendor you choose charges for their services.
MLS Import is one of those separate costs, at $49 a month after a 30-day free trial.
About 2 to 4 business days if the vendor is one Bay East has already approved. A vendor it hasn't worked with before takes 3 to 4 weeks.
Build that lead time in before you promise a client a launch date, then connect MLS Import once the credentials arrive.
Bay East, CCAR, and bridgeMLS all take part, along with other Northern California MLSs, sharing listing data reciprocally instead of merging. The associations' own pages give different totals, so no single number holds up.
MLS Import imports one association's licensed feed, not everything a subscriber can search.
A new REALTOR joining with MLS and Key pays $916.83 due now on Bay East's published pay-in-full schedule. Recurring, MLS runs $598 a year and the eKey $272 a year on its published July 2025 to June 2026 schedule.
Confirm current figures with Bay East. MLS Import is billed separately.
CCAR publishes one figure: $120 a year for Individual Affiliate Membership. Its REALTOR and MLS dues sit in a separate Exhibit A schedule that isn't published on its site, so call Member Services on (925) 295-1270 for current numbers.
MLS Import is billed separately at $49 a month.
Neither association publishes a self-service application route, so start with the MLS department. Bay East takes IDX and vendor questions at [email protected], CCAR at [email protected].
Ask what a data licence involves and who signs it. Then paste the credentials into MLS Import.
CCAR's IDX Center puts it in two numbers: authorized vendors may pull new listing data up to six times a day, and listings have to be updated within 12 hours of any MLS change.
Confirm the pull frequency your own feed allows when you request it. MLS Import checks for MLS changes hourly by default.
Yes. MLS Import works with any WordPress theme and syncs an approved RESO Web API feed hourly into native, indexable posts on your own domain.
It connects one MLS per site, so a site covering both associations is really two setups, at $49 a month each after a 30-day trial.
Membership and a data feed both come from the association, not from us. Neither one publishes a signup form for RESO Web API access, so a phone call or an email to the right desk is the actual first step, and the IDX and MLS lines below are the ones that answer that question rather than a general inbox. Join or connect at either association, get credentials issued, and MLS Import takes the WordPress side from there.
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