MLS
Business capabilities this tag reaches
Real Estate Brokerage Management 1
Variants seen in the corpus:
Multiple Listing ServiceMLS
Providers using this tag (47)
Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.
Strong 2 Solid coverage with minor gaps
Developing 8 Usable, with meaningful gaps to close
Thin 10 Limited public surface area
Emerging 16 Early or largely undocumented
Minimal 11 Almost no public developer surface
APIs with this tag (23)
Ranked by the provider's API Evangelist rating — the Kin Score is scored per provider, not per API, so every API of a provider shares its band. How the rating works →
Strong 3 Solid coverage with minor gaps
Spark APIFBS's proprietary REST API over Flexmls MLS content. Documented services include Listings (plus photos, doc...Spark RESO Web APISpark's implementation of the RESO Web API, exposed as an OData service at the /Reso/OData endpoint and ser...Spark WebhooksOutbound webhook delivery from the Spark platform. When a Property, Member or Office record changes in an u...
Developing 8 Usable, with meaningful gaps to close
RESO Web APIThe RESO Web API is the ratified transport standard for real estate data, defined as a profile of OData 4.0...Trestle Participant Reporting APIA compliance API that lets technology providers report to each MLS which brokers they hold contracts with —...Trestle RESO Web APIThe primary Trestle interface — a RESO Web API 2.0 / OData 4.0 endpoint that republishes MLS data mapped to...Trestle RETSTrestle's legacy Real Estate Transaction Standard interface, documented as compliant with RETS 1.8. RESO no...Participant Reporting APIThe Participant Reporting API allows MLS staff and brokerages to report broker/agent participation events b...Trestle RETSTrestle's RETS endpoint implements the RETS 1.8 specification on top of the same data catalog as the RESO W...Bridge Interactive APIBridge Interactive is Zillow Group's RESO-compliant data distribution platform for MLSs, brokers, and appro...Zillow Group MLS Listings APIRESTful JSON listing API serving MLS and broker data normalized to the RESO Data Dictionary standard. Docum...
Thin 5 Limited public surface area
Anywhere Master Data (MDM) APIA bundle of APIs representing clean, curated master data for Agent, Office, Company, Staff and Listings ent...Anywhere MLS Data Service APIEndpoints for MLS listings data assembled by Anywhere's MLS Data Platform (MDP), which downloads, processes...RealEstateAPI MLS APIMLS listing dataXMTP Network gRPC APICore gRPC-based API for the XMTP decentralized messaging network. Provides operations for sending and retri...MLS Router APIRESO-certified Web API (OData) for MLS data distribution: OAuth2 client-credentials token, $metadata, Field...
Emerging 5 Early or largely undocumented
Stellar MLS Data DeliveryStellar MLS listing data delivery program (API, IDX and custom options). The Web API is not served from a S...Zillow Group APIs (Successor)Programmatic access to data that historically lived behind the Trulia API is now delivered through Zillow G...HomesnapMobile residential real estate search and agent productivity application that integrates with MLSs and Home...Realtyna MLS Router APIMLS Router API is an enterprise solution that aggregates and routes data across multiple MLS feeds, providi...Realtyna Organic RESO APIOrganic RESO API provides standards-based access to real estate listing data using the RESO Web API specifi...
Minimal 2 Almost no public developer surface
Rapattoni MLS Data Services (RETS / RESO Web API)RETS and RESO Web API access to Rapattoni-hosted MLS listing data for licensed third parties. The developer...NAVICA RESO Web API and RETS Data FeedsRESO Web API (OData) and RETS servers delivering NAVICA MLS data conforming to the RESO Data Dictionary to ...
Companies reaching this through an API (2)
These companies publish an API, specification or operation carrying “MLS” but do not classify their business under it. Listed unranked and kept out of the count above, because one tagged operation is not a statement about what a company does.
Score breakdown
Frequency
49.4
log-scaled weighted occurrences
Breadth
1.1
spread across providers
Quality lift
25.7
mean composite of providers using it
Cohesion
0.0
strength of nearest seed neighbor
Related tags
RESO 24 co-occurrences
IDX 19 co-occurrences
Property Listings 22 co-occurrences
Property Data 13 co-occurrences
Office 8 co-occurrences
RETS 6 co-occurrences
OData 11 co-occurrences
Where this tag comes from
Provider tag47
Api tag23
Openapi tag1
Openapi op tag2
Markets provisional
Kin Score markets whose measured providers carry this tag. Share is the fraction of the market's measured providers that carry it — it describes the market, not this tag.
| Market | Share of the market's providers |
|---|---|
| Real Estate and Proptech | 32% |
Cohort brief
Auto-generatedThe 44 providers in the APIs.io catalog tagged MLS, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.
Providers
44
of 47 in the catalog
Mean Kin Score
25
+2.8 vs catalog 22.2
Mean Agent Readiness
12.9
+0.9 vs catalog 12
Spread
3.5–63
median 22.8 · σ 15.3
How the 44 split by band
Exemplar 0Strong 2Developing 7Thin 10Emerging 16Minimal 9
Facet averages, against the whole catalog
| Facet | This cohort | Catalog | Difference | Scored |
|---|---|---|---|---|
| Developer Ergonomics | 27.4 | 23.2 | +4.2 | 44 |
| Discoverability | 62 | 57.9 | +4.1 | 44 |
| Access Clarity | 26.8 | 23.9 | +2.9 | 44 |
| Contract Governance | 9.2 | 6.5 | +2.7 | 44 |
| Contract Quality | 18.8 | 17.2 | +1.6 | 44 |
| Operational Transparency | 12.7 | 13 | -0.3 | 44 |
A facet is averaged over the members that carry it, not over the whole cohort — the “Scored” column is that count. Averaging an absent facet as zero would score our own coverage gaps as the providers’ posture.
What this cohort publishes
| Artifact | This cohort | Catalog | Difference |
|---|---|---|---|
| MCP server (any) | 14% | 13% | +1 |
| MCP server (first-party) | 7% | 12% | -5 |
| Agent Skills | 0% | 0% | 0 |
| OAuth scopes | 23% | 11% | +12 |
| Security | 100% | 98% | +2 |
| Arazzo workflows | 0% | 2% | -2 |
| Governance rules | 9% | 16% | -7 |
mcp_pct counts any mcp/ artifact including ones API Evangelist derived from the provider OpenAPI; mcp_first_party_pct counts only servers the provider publishes. Prefer the latter.
Top by Kin Score
- 1 Mlsgrid 63
- 2 Spark Platform 54.8
- 3 Bridge 49.7
- 4 Lone Wolf Technologies 48.4
- 5 RESO (Real Estate Standards Organization) 47.1
- 6 Bright MLS 46.7
- 7 Trestle 45.9
- 8 CREA (REALTOR.ca) 44.5
- 9 CoreLogic (Cotality) 42.5
- 10 Zillow Group 41.1
Top by Agent Readiness
- 1 Lone Wolf Technologies 47.7
- 2 REALTOR.ca 36.1
- 3 CREA (REALTOR.ca) 34
- 4 Mlsgrid 33.3
- 5 RESO (Real Estate Standards Organization) 32.2
- 6 Wahi 27.7
- 7 RealScout 27.3
- 8 Bright MLS 27.1
- 9 Spark Platform 26.4
- 10 Mashvisor 26.2
All 47 members of this roster resolve to a provider in the
catalog; 44 carry a score (94%).
The figures above describe the scored members only.
Coverage caveat. 41 of 44 scored members had under half their catalog-attributable points satisfied at all (catalog_earned / catalog_max < 0.5). They are INCLUDED in the mean above. A large share here means the cohort mean is partly a measurement of how far our enrichment reached, not only of how these providers publish.Generated from the catalog build of 24 October 2026, across 31984 providers, using the same computation served by the APIs.io cohort API. Briefs are published for rosters of 5 or more scored providers; below that a distribution is not meaningful.
Coverage caveat. 41 of 44 scored members had under half their catalog-attributable points satisfied at all (catalog_earned / catalog_max < 0.5). They are INCLUDED in the mean above. A large share here means the cohort mean is partly a measurement of how far our enrichment reached, not only of how these providers publish.Generated from the catalog build of 24 October 2026, across 31984 providers, using the same computation served by the APIs.io cohort API. Briefs are published for rosters of 5 or more scored providers; below that a distribution is not meaningful.
Work with this as data
Every tag here is available over the APIs.io API and to AI agents over MCP.