Landgate is the Western Australian Land Information Authority — the WA government agency that maintains the state land titles register, values every rateable property in Western Australia, and curates the state's foundational location data (cadastre, tenure, property addresses, sales evidence, imagery, elevation, geographic names). In the Australian real estate value chain Landgate sits underneath the listing portals (REA Group's realestate.com.au and Domain) and underneath PEXA's electronic conveyancing rail as the authoritative source of the public land record for WA; since 2019 the automated land titling and registry operations have been operated under a commercial services arrangement while Landgate retains the Registrar of Titles function and the data custodianship. Its API posture is genuinely split and should not be overstated — a real, anonymously callable public surface exists (the SLIP Shared Location Information Platform ArcGIS REST directory plus OGC WMS/WFS services, and the Data WA CKAN Action API that Landgate operates for the whole WA public sector), while the richer registry and subscription data sits behind SLIP subscription, transaction, publication, broker, distributor and value-added-reseller licences that must be signed and, for bulk downloads, behind a MyLandgate account login. There is no developer portal, no published OpenAPI, no API key self-service, and no RESO involvement of any kind — RESO is a North American MLS standard and is absent from this Australian government registry.
Landgate publishes 3 APIs on the APIs.io network: SLIP Public Services (ArcGIS REST), SLIP Public OGC Web Services (WMS / WFS), and Data WA CKAN Action API. Tagged areas include Real Estate, Australia, Land Registry, Title, and Valuation.
Landgate’s developer surface includes documentation, pricing, support, developer portal, authentication, changelog, engineering blog, and 22 more developer resources.
The public tier of Landgate's Shared Location Information Platform (SLIP), served as an Esri ArcGIS Server 12.1 REST services directory. Confirmed anonymously reachable on 2026-...
OGC-standard web services fronting the same SLIP public data. A WMS 1.3.0 GetCapabilities document (56 layers) and a WFS 2.0.0 GetCapabilities document (38 feature types) were b...
Landgate leads implementation of the WA Whole of Government Open Data Policy and operates data.wa.gov.au, whose catalogue runs CKAN with the standard /api/3/action surface expos...
Landgate's customer identity provider, running PingFederate. The OpenID Connect discovery document is served anonymously (HTTP 200, 2026-07-26) at /.well-known/openid-configurat...
aid: landgate
url: https://raw.githubusercontent.com/api-evangelist/landgate/refs/heads/main/apis.yml
name: Landgate
kind: company
description: Landgate is the Western Australian Land Information Authority — the WA government agency that maintains the state
land titles register, values every rateable property in Western Australia, and curates the state's foundational location
data (cadastre, tenure, property addresses, sales evidence, imagery, elevation, geographic names). In the Australian real
estate value chain Landgate sits underneath the listing portals (REA Group's realestate.com.au and Domain) and underneath
PEXA's electronic conveyancing rail as the authoritative source of the public land record for WA; since 2019 the automated
land titling and registry operations have been operated under a commercial services arrangement while Landgate retains the
Registrar of Titles function and the data custodianship. Its API posture is genuinely split and should not be overstated
— a real, anonymously callable public surface exists (the SLIP Shared Location Information Platform ArcGIS REST directory
plus OGC WMS/WFS services, and the Data WA CKAN Action API that Landgate operates for the whole WA public sector), while
the richer registry and subscription data sits behind SLIP subscription, transaction, publication, broker, distributor and
value-added-reseller licences that must be signed and, for bulk downloads, behind a MyLandgate account login. There is no
developer portal, no published OpenAPI, no API key self-service, and no RESO involvement of any kind — RESO is a North American
MLS standard and is absent from this Australian government registry.
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
tags:
- Real Estate
- Australia
- Land Registry
- Title
- Valuation
- Property Data
- Open Data
- Geospatial
- Government
- Conveyancing
- PropTech
created: '2026-07-26'
modified: '2026-07-26'
specificationVersion: '0.19'
apis:
- aid: landgate:slip-public-arcgis-rest-services
name: SLIP Public Services (ArcGIS REST)
description: The public tier of Landgate's Shared Location Information Platform (SLIP), served as an Esri ArcGIS Server
12.1 REST services directory. Confirmed anonymously reachable on 2026-07-26 with HTTP 200 and authInfo.isTokenBasedSecurity
false — 65 map services across five folders (SLIP_Public_Services with 57 services, plus Landgate_Public_Maps, Landgate_Public_Imagery,
Land_Monitor and Utilities), covering cadastre, administrative and LGA boundaries, buildings and structures, bushfire
prone areas, climate, disaster, transport and marine layers. A live layer query (SLIP_Public_Services/Boundaries/MapServer/14/query)
returned real LGA boundary features without any credential.
humanURL: https://www.landgate.wa.gov.au/location-data-and-services/programs-and-initiatives/slip/
baseURL: https://public-services.slip.wa.gov.au/public/rest/services
tags:
- Geospatial
- Cadastre
- Boundaries
- Open Access
- ArcGIS
properties:
- type: ArcGIS
url: openapi/landgate-slip-public-arcgis-rest-services.json
- type: ArcGIS
url: openapi/landgate-slip-public-services-folder.json
- type: APIReference
url: https://public-services.slip.wa.gov.au/public/rest/services?f=json
- type: Documentation
url: https://www.landgate.wa.gov.au/location-data-and-services/programs-and-initiatives/slip/
- type: Documentation
url: https://maps.slip.wa.gov.au/landgate/locate/
- type: OpenAPI
url: openapi/landgate-slip-public-arcgis-openapi.yml
- type: Overlay
url: overlays/landgate-slip-public-arcgis-overlay.yaml
- aid: landgate:slip-public-ogc-services
name: SLIP Public OGC Web Services (WMS / WFS)
description: OGC-standard web services fronting the same SLIP public data. A WMS 1.3.0 GetCapabilities document (56 layers)
and a WFS 2.0.0 GetCapabilities document (38 feature types) were both retrieved anonymously with HTTP 200 on 2026-07-26
and are saved verbatim. These GetCapabilities documents are the machine-readable contract for this surface — there is
no OpenAPI and no OData $metadata anywhere on the Landgate estate.
humanURL: https://www.landgate.wa.gov.au/location-data-and-services/programs-and-initiatives/slip/
baseURL: https://public-services.slip.wa.gov.au/public/services
tags:
- Geospatial
- OGC
- WMS
- WFS
- Open Access
properties:
- type: GetCapabilities
url: openapi/landgate-slip-public-wms-capabilities.xml
- type: GetCapabilities
url: openapi/landgate-slip-public-wfs-capabilities.xml
- type: WMS
url: https://services.slip.wa.gov.au/public/services/SLIP_Public_Services/Boundaries/MapServer/WMSServer?request=GetCapabilities&service=WMS
- type: Documentation
url: https://www.landgate.wa.gov.au/location-data-and-services/discovering-landgate-data/
- type: OpenAPI
url: openapi/landgate-slip-public-ogc-openapi.yml
- type: Overlay
url: overlays/landgate-slip-public-ogc-overlay.yaml
- aid: landgate:data-wa-ckan-action-api
name: Data WA CKAN Action API
description: Landgate leads implementation of the WA Whole of Government Open Data Policy and operates data.wa.gov.au, whose
catalogue runs CKAN with the standard /api/3/action surface exposed anonymously. Confirmed 2026-07-26 — status_show, package_search,
package_list and organization_show all returned HTTP 200 without credentials; the catalogue holds 2,872 datasets, of which
395 are published by the Landgate organization. A DCAT JSON-LD catalog is served at /catalog.jsonld. Note honestly that
the API is open but most Landgate datasets in it carry a custom Landgate licence rather than an open licence (371 of 395
are license_id custom_other; only 2 are public domain and 5 are CC non-commercial).
humanURL: https://www.data.wa.gov.au/
baseURL: https://catalogue.data.wa.gov.au/api/3/action
tags:
- Open Data
- Catalog
- CKAN
- DCAT
- Government
properties:
- type: CKAN
url: https://catalogue.data.wa.gov.au/api/3/action/status_show
- type: APIReference
url: https://catalogue.data.wa.gov.au/api/3/action/help_show?name=package_search
- type: JSONLD
url: https://catalogue.data.wa.gov.au/catalog.jsonld
- type: Documentation
url: https://www.landgate.wa.gov.au/location-data-and-services/programs-and-initiatives/data-wa/
- type: Documentation
url: https://catalogue.data.wa.gov.au/dataset
- type: OpenAPI
url: openapi/landgate-data-wa-ckan-openapi.yml
- type: Overlay
url: overlays/landgate-data-wa-ckan-overlay.yaml
- aid: landgate:mylandgate-openid-connect
name: MyLandgate OpenID Connect / OAuth 2.0 (PingFederate)
description: Landgate's customer identity provider, running PingFederate. The OpenID Connect discovery document is served
anonymously (HTTP 200, 2026-07-26) at /.well-known/openid-configuration and is saved verbatim. It is a real, machine-readable
authorization-server contract — but it is the sign-on for MyLandgate, Land Enquiry Services and SLIP subscriber accounts,
not a public developer API. There is no public client registration endpoint, no published scope catalogue beyond the standard
openid/profile/email/address/phone plus an ATO scope, and no developer documentation. Listed here because the artifact
is genuine, not because it is self-serve.
humanURL: https://land-enquiry.app.landgate.wa.gov.au/
baseURL: https://sign-on.app.landgate.wa.gov.au
tags:
- Authentication
- OpenID Connect
- OAuth 2.0
- Gated
properties:
- type: WellKnown
url: openapi/landgate-mylandgate-openid-configuration.json
- type: WellKnown
url: https://sign-on.app.landgate.wa.gov.au/.well-known/openid-configuration
- type: Login
url: https://land-enquiry.app.landgate.wa.gov.au/
- type: WellKnown
url: well-known/landgate-oauth-authorization-server.json
- type: OAuthScopes
url: scopes/landgate-scopes.yml
common:
- type: AgenticAccess
url: agentic-access/landgate-agentic-access.yml
- type: DomainSecurity
url: security/landgate-domain-security.yml
- type: Website
url: https://www.landgate.wa.gov.au/
- type: About
url: https://www.landgate.wa.gov.au/about-us/
- type: Documentation
url: https://www.landgate.wa.gov.au/location-data-and-services/discovering-landgate-data/
- type: Pricing
url: https://www.landgate.wa.gov.au/location-data-and-services/discovering-landgate-data/licensing/
- type: Licensing
url: https://www.landgate.wa.gov.au/location-data-and-services/discovering-landgate-data/licensing/
- type: Support
url: https://www.landgate.wa.gov.au/help-centre/
- type: Login
url: https://land-enquiry.app.landgate.wa.gov.au/
- type: Portal
url: https://www.data.wa.gov.au/
- type: WellKnown
url: https://sign-on.app.landgate.wa.gov.au/.well-known/openid-configuration
- type: Authentication
url: authentication/landgate-authentication.yml
- type: OAuthScopes
url: scopes/landgate-scopes.yml
- type: WellKnown
url: well-known/landgate-well-known.yml
- type: Conventions
url: conventions/landgate-conventions.yml
- type: ErrorCatalog
url: errors/landgate-problem-types.yml
- type: Lifecycle
url: lifecycle/landgate-lifecycle.yml
- type: ChangeLog
url: changelog/landgate-changelog.yml
- type: ChangeLog
url: https://www.landgate.wa.gov.au/about-us/customer-news-and-media/news-and-media-articles/
- type: Conformance
url: conformance/landgate-conformance.yml
- type: DataModel
url: data-model/landgate-data-model.yml
- type: Packages
url: packages/landgate-packages.yml
- type: LLMsTxt
url: llms/landgate-llms.txt
- type: AgentSkill
url: skills/_index.yml
- type: GitHubOrganization
url: https://github.com/Landgate
- type: PrivacyPolicy
url: https://www.landgate.wa.gov.au/privacy
- type: Blog
url: https://www.landgate.wa.gov.au/about-us/customer-news-and-media/news-and-media-articles/
- type: HelpCenter
url: https://www.landgate.wa.gov.au/help-centre/
- type: TermsOfService
url: https://www.landgate.wa.gov.au/disclaimer
maintainers:
- FN: Kin Lane
email: kin@apievangelist.com
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