Property Data
Variants seen in the corpus:
Property DataPropertyData
Providers using this tag (55)
Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.
Strong 4 Solid coverage with minor gaps
Developing 16 Usable, with meaningful gaps to close
Thin 19 Limited public surface area
Emerging 13 Early or largely undocumented
APIs with this tag (36)
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
Freddie Mac Beyond ACESubmit property data report (PDR) data and photos to receive feedback messages and speed up your underwriti...360 Property Data360 Property Data is Cotality's enterprise property data product covering structure, ownership, tax, mortga...Zillow Group Data (ZG Data) APIZillow Group Data feeds delivered through Bridge — parcels, assessments, transactions, and Zillow Group Eco...
Developing 8 Usable, with meaningful gaps to close
First American Occupancy APIOccupancy report ordering and retrieval, including a PDF rendering. Swagger 2.0, 3 operations.First American Ownership APIOwnership information used to assess properties owned by borrowers, occupancy issues and foreclosure activi...First American Property APINationwide property data — property basic and extended characteristics, assessor tax and legal description,...First American Reverse Address Search APIReverse address search returning the owner current name, address or business associated with an address — b...HOVER APIREST API for creating and managing property capture jobs, retrieving 3D models and measurement deliverables...Zillow Public Records APIRESTful JSON API over parcel, assessment and transaction records covering roughly 148 million properties ac...Zillow Zestimate APIRESTful JSON API returning Zillow property, rental and foreclosure Zestimates for approximately 100 million...Verisk UnderWriting APIVerisk UnderWriting API provides personal and commercial lines insurance underwriting data including homeow...
Thin 18 Limited public surface area
Microburbs APIThe Microburbs Property Data API: 173 metered, read-only REST operations for Australian property and suburb...Datafiniti Property Data APIAccess a large catalog of real estate listings from dozens of websites, integrated with pricing data, ameni...HouseCanary Analytics APIREST API providing property-level data including AVM valuations, rental value, land value, LTV, sales histo...Flueid Property Data APIThe PropertyData API from Flueid — 22 operation(s) for propertydata.Clear Capital Appraisal & Orders APIOrdering and fulfillment of Clear Capital valuation products via the Property Valuation API - Hybrid Apprai...Clear Capital ClearAVM / Valuation APILending-grade automated valuation model (ClearAVM) and Rental AVM delivered over a RESTful interface, retur...Clear Capital Comparables (Comps) APIComparable sales and comparable rentals for a subject property, ranked by Clear Capital's proprietary Clear...Clear Capital Property Data APIProperty characteristics (bedrooms, bathrooms, gross living area, photos), home price index and historical ...SiteMinder Direct Booking APIThe Direct Booking API is a REST and JSON service that lets hotel groups on SiteMinder's Multi-Property pla...CoreLogic Australia Commercial APICommercial property data delivered into a licensee's own systems — market research, commercial valuations a...CoreLogic Australia Insurance APIInsurance-facing property data service. Named and hosted in the Cotality Developer Portal environment-detai...CoreLogic Australia Property Bureau APIProperty Bureau service. Named and hosted in the Cotality Developer Portal environment-details guide and in...CoreLogic Australia Property Details APIPer-property record retrieval keyed on the CoreLogic property identifier — core and additional attributes, ...CoreLogic Australia Property Monitor APIProperty monitoring — watch a property or portfolio for change. Named and hosted in the environment-details...CoreLogic Australia Property Profile Report APIProperty profile report generation — the API behind Cotality's Australian property, suburb and investment r...CoreLogic Australia Property Risk APIProperty risk services — the API behind Cotality's Australian hazard and resilience products. Named and hos...CoreLogic Australia Property Timeline APIChronological event timeline for a single property — sales, listing campaigns, rental campaigns and, with t...CoreLogic Australia Update APIUpdate services — the write-shaped surface of the Cotality Australian estate. Named and hosted in the envir...
Emerging 6 Early or largely undocumented
Zumper APIThe Zumper API provides access to rental listings, property data, rental price insights, and tenant applica...CoStar Commercial Real Estate PlatformCoStar's flagship commercial real estate information platform covering property, tenant, lease, sale, and m...BuildZoom Data APIRESTful Data API over BuildZoom's Building Permit Database — property permit history and contractor license...TrueTracts APIBackend API for the TrueTracts appraiser console — the subscription platform that performs market definitio...PropTrack APIsREST APIs providing Australian property intelligence — address suggestion and matching, property and listin...Property Capsule Developer APIProperty Capsule's Developer API, announced live on 2020-06-18 in the company's public release notes: "Our ...
Minimal 1 Almost no public developer surface
Companies reaching this through an API (5)
These companies publish an API, specification or operation carrying “Property Data” 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
53.9
log-scaled weighted occurrences
Breadth
1.5
spread across providers
Quality lift
37.4
mean composite of providers using it
Cohesion
0.0
strength of nearest seed neighbor
Related tags
AVM 16 co-occurrences
Valuation 22 co-occurrences
Listings 16 co-occurrences
Land Registry 8 co-occurrences
Property 9 co-occurrences
MLS 8 co-occurrences
Conveyancing 6 co-occurrences
PropTech 28 co-occurrences
Where this tag comes from
Provider tag55
Api tag32
Openapi tag5
Openapi op tag23
Cohort brief
Auto-generatedThe 54 providers in the APIs.io catalog tagged Property Data, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.
Providers
54
all scored
Mean Kin Score
33.4
+9.5 vs catalog 23.9
Mean Agent Readiness
20.6
+8.6 vs catalog 12
Spread
6.3–61.7
median 35.2 · σ 14.6
How the 54 split by band
Exemplar 0Strong 4Developing 16Thin 19Emerging 12Minimal 3
Facet averages, against the whole catalog
| Facet | This cohort | Catalog | Difference | Scored |
|---|---|---|---|---|
| Contract Quality | 36.2 | 19.8 | +16.4 | 54 |
| Developer Ergonomics | 33.3 | 23.4 | +9.9 | 54 |
| Access Clarity | 34.8 | 26.5 | +8.3 | 54 |
| Discoverability | 67.3 | 61.2 | +6.1 | 54 |
| Contract Governance | 10.6 | 6.4 | +4.2 | 54 |
| Operational Transparency | 18.1 | 14 | +4.1 | 54 |
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) | 11% | 10% | +1 |
| MCP server (first-party) | 13% | 13% | 0 |
| Agent Skills | 0% | 0% | 0 |
| OAuth scopes | 20% | 11% | +9 |
| Security | 100% | 97% | +3 |
| Arazzo workflows | 6% | 2% | +4 |
| Governance rules | 19% | 14% | +5 |
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 Zillapi 61.7
- 2 CoreLogic (Cotality) 59.5
- 3 Ordnance Survey 57.9
- 4 Bridge 56.9
- 5 Landmark Information Group 51.2
- 6 ATTOM 50.9
- 7 REA Group 49
- 8 Domain Group 48
- 9 First American Financial 47.9
- 10 HOVER 47.6
Top by Agent Readiness
- 1 Zillapi 59.5
- 2 Landmark Information Group 45.9
- 3 Domain Group 43.3
- 4 Alto (Vebra / Zoopla) 41.8
- 5 Landgate 39
- 6 Hometrack 38.7
- 7 Microburbs 38.4
- 8 HOVER 33.8
- 9 First American Financial 33.2
- 10 Ordnance Survey 31.1
All 55 members of this roster resolve to a scored provider in
the catalog.Generated from the catalog build of
15 September 2026, across 27661
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.