# Landgate

**Canonical:** https://apis.io/providers/landgate/  
**Website:** https://www.landgate.wa.gov.au/  
**APIs profiled:** 4

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.

## Kin Score — 51.0 / 100 (developing)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 51.0).

| Facet | Score |
|---|---|
| Discoverability | 92.6 |
| Contract Quality | 52.0 |
| Governance | 16.7 |
| Contract Governance | 16.7 |
| Operational Transparency | 18.4 |
| Developer Ergonomics | 39.9 |
| Commercial Clarity | 38.2 |
| Access Clarity | 38.2 |

Regulatory layer — **Government & Public Sector**: 79.6 (matched via tags).

## Agent readiness — 36.5 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | na |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | na |
| Error Semantics | documented |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | derived |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | na |

## APIs (4)

- **SLIP Public Services (ArcGIS REST)** — 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-...
- **SLIP Public OGC Web Services (WMS / WFS)** — 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...
- **Data WA CKAN Action API** — 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...
- **MyLandgate OpenID Connect / OAuth 2.0 (PingFederate)** — 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...

## MCP servers (1)

- **Landgate MCP Server**

## Agentic access (1)

- **Landgate Agentic Access** — 27 operations

## Security (2)

- **Landgate Authentication** — none/oauth2/openIdConnect · 2 schemes
- **Landgate Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC

## Tags

Real-Estate, Australia, Land Registry, Title, Valuation, Property Data, Open Data, Geospatial, Government, Conveyancing, PropTech

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/landgate/). Scores are computed from the provider's own public artifacts under a published rubric.