Domain Group
Domain Group (Domain Holdings Australia Ltd, trading as domain.com.au) is the second of Australia's two national residential property portals, alongside REA Group's realestate.com.au, and since 27 August 2025 has been a wholly owned subsidiary of CoStar Group. Headquartered in Sydney, Domain operates the domain.com.au consumer marketplace plus commercial, agent, and developer-project brands, and sits in the middle of the Australian value chain between selling and leasing agencies on one side and buyers, renters, banks, and PropTech builders on the other. Unlike most of the real estate sector, Domain runs a genuine, self-serve public developer portal at developer.domain.com.au: a developer signs up with GitHub, Google, or email, creates a project, and is immediately granted the "Agents & Listings" and "Properties & Locations" packages, with the remaining eleven packages - Address Suggestions, Campaign reporting, Listings Management, Price Estimation, Property Enrichment, Property Package, PropertyRadar, Rental AVM, Schools Data, and Webhooks - added per project and negotiated with an account manager. Domain publishes three machine-readable OpenAPI 3.0.4 documents (latest, v1, v2) directly from its Libraries page, backs them with an OpenID Connect discovery document at auth.domain.com.au, and serves everything from api.domain.com.au behind API-key or OAuth 2.0 (client credentials, authorization code, implicit) credentials. Write access is a different gate entirely: uploading or updating listings requires sandbox sign-off by email to api@domain.com.au and written permission from the principal agent of each agency, making listing management broker-authorised even though the read surface is self-serve. Domain carries no RESO Web API or RESO Data Dictionary certification, exposes no OData $metadata document and no Universal Property Identifier - RESO is a North American NAR-driven standard with no presence in the Australian portal duopoly - and it publishes no open, unlicensed dataset; all data is licensed under the Domain Group API Terms and Conditions.
Domain Group publishes 31 API contracts indexed on the APIs.io network, including Address Locators API, Agencies API, Agents API, and 28 more. Tagged areas include Real Estate, Australia, Property Listings, Property Data, and Valuation.
The Domain Group catalog on APIs.io includes 2 event-driven AsyncAPI specifications, 1 JSON-LD context, and 1 Spectral governance ruleset.
Domain Group’s developer surface includes authentication, documentation, API reference, signup flow, getting-started guide, sandbox, support, and 54 more developer resources.
What this lets a business do 4
Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →
Kin Score
Standards implemented 2
Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.
APIs 31
Individual APIs this provider publishes, each with its own machine-readable definition.
Domain Group Address Locators API
The AddressLocators API from Domain Group — 1 operation(s) for addresslocators.
Domain Group Agencies API
The Agencies API from Domain Group — 6 operation(s) for agencies.
Domain Group Agents API
The Agents API from Domain Group — 5 operation(s) for agents.
Domain Group Authorities API
The Authorities API from Domain Group — 6 operation(s) for authorities.
Domain Group Campaign Reporting API
The CampaignReporting API from Domain Group — 3 operation(s) for campaignreporting.
Domain Group Dataset API
The Dataset API from Domain Group — 1 operation(s) for dataset.
Domain Group Demographics API
The Demographics API from Domain Group — 1 operation(s) for demographics.
Domain Group Disclaimers API
The Disclaimers API from Domain Group — 2 operation(s) for disclaimers.
Domain Group Enquiries API
The Enquiries API from Domain Group — 2 operation(s) for enquiries.
Domain Group Leadscope API
The Leadscope API from Domain Group — 2 operation(s) for leadscope.
Domain Group Listings API
The Listings API from Domain Group — 19 operation(s) for listings.
Domain Group Listing Search API
The ListingSearch API from Domain Group — 2 operation(s) for listingsearch.
Domain Group Locations API
The Locations API from Domain Group — 1 operation(s) for locations.
Domain Group Me API
The Me API from Domain Group — 3 operation(s) for me.
Domain Group Pre Market API
The PreMarket API from Domain Group — 2 operation(s) for premarket.
Domain Group Products API
The Products API from Domain Group — 8 operation(s) for products.
Domain Group Projects API
The Projects API from Domain Group — 6 operation(s) for projects.
Domain Group Properties API
The Properties API from Domain Group — 10 operation(s) for properties.
Domain Group Property Avm API
The PropertyAvm API from Domain Group — 2 operation(s) for propertyavm.
Domain Group Property Features API
The PropertyFeatures API from Domain Group — 1 operation(s) for propertyfeatures.
Domain Group Property Like API
The PropertyLike API from Domain Group — 1 operation(s) for propertylike.
Domain Group Property Radar API
The PropertyRadar API from Domain Group — 7 operation(s) for propertyradar.
Domain Group Property Zoning Perils API
The PropertyZoningPerils API from Domain Group — 1 operation(s) for propertyzoningperils.
Domain Group Sales Results API
The SalesResults API from Domain Group — 5 operation(s) for salesresults.
Domain Group Schools API
The Schools API from Domain Group — 2 operation(s) for schools.
Domain Group Statistics API
The Statistics API from Domain Group — 6 operation(s) for statistics.
Domain Group Webhooks API
The Webhooks API from Domain Group — 2 operation(s) for webhooks.
Domain Group Avm History API
The Avm History API from Domain Group — 1 operation(s) for property valuation history (GET /v1/avmHistory/{propertyId}, "Retrieves valuation history for the property"). Present ...
Domain Group Auction Collection API
The Auction Collection API from Domain Group — 2 operation(s) for auction collection: the auction calling sheet of auctions without results yet (GET /v2/auctions/calling-sheet/{...
Domain Group Agent Search API
The Agent Search API from Domain Group — 1 operation(s) for agent search by location (POST /v2/agentsearch/agents/location, "Retrieves agents matching the specified location cri...
Domain Group Property Search API
The Property Search API from Domain Group — 1 operation(s) for property search.
Scroll for all 31
Open Collections 3
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
Agent Skills 5
Packaged agent skills for driving this provider's APIs from an AI assistant.
domain-group-listing-management
AGENT SKILLdomain-group-listing-search
AGENT SKILLdomain-group-property-valuation
AGENT SKILLdomain-group-suburb-market-data
AGENT SKILLdomain-group-webhook-subscriptions
AGENT SKILLDomain Group API pricing
Rate limits
- Authorisation token requests: not more than 3000 Requests Per Hour
- Daily API quota: Access to each API may be limited to a daily quota based on the plan you have chosen when adding the API to your project
- General request rate: A general limit of 1000-3000 Requests Per Minute (depending on plan) also applies to all API requests
Pricing Plans 1
Published pricing tiers and plan structures.
Rate Limits 1
Documented rate limits and quota policies.
Domain Group Rate Limits
RATE LIMITSService Levels 1
Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.
Domain Group
SLAEvent Specifications 2
AsyncAPI definitions for this provider's event-driven and streaming APIs.
Domain Group Webhooks
Event surface for the Domain Public API. Domain does not publish an AsyncAPI document; this one is generated by API Evangelist strictly from Domain's published webhook documenta...
ASYNCAPIDomain Group Webhooks
ASYNCAPISemantic Vocabularies 1
JSON-LD contexts and semantic vocabularies used across these APIs.
Domain Group Context
JSON-LDSpectral Rules 1
Spectral governance rulesets for linting and validating these APIs.
Domain Group API Rules
SPECTRALOpenAPI Overlays 34
Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.
Domain Group Agents Api Overlay
DERIVEDDomain Group Dataset Api Overlay
DERIVEDDomain Group Latest Overlay
DERIVEDDomain Group Me Api Overlay
DERIVEDDomain Group Schools Api Overlay
DERIVEDDomain Group V1 Overlay
DERIVEDDomain Group V2 Overlay
DERIVEDScroll for all 34
JSON Schema 76
Standalone JSON Schema definitions for this provider's data models.
Agencies.V1.Agent
JSON SCHEMAAgencies.V2.Agency
JSON SCHEMAAgencies.V2.AgencySummary
JSON SCHEMAAgencies.V2.AgentReviewLiteResponse
JSON SCHEMAAgencies.V2.GetAgentsByLocationRequest
JSON SCHEMAAuctionCollection.v1.CallingSheetResponse
JSON SCHEMAAuctionCollection.v1.PutAuctionUpdateRequest
JSON SCHEMAAuctionResults.v1.listingEventItem
JSON SCHEMAAuctionResults.v1.summaryResponse
JSON SCHEMAAuthorities.v1.Attachments
JSON SCHEMAAuthorities.v1.AuthorityRequest
JSON SCHEMAAuthorities.v1.AuthorityResponse
JSON SCHEMAAuthorities.v1.SubscriptionRequest
JSON SCHEMAAuthorities.v1.SubscriptionResponse
JSON SCHEMAAuthorities.v1.VendorAttachments
JSON SCHEMAAvmHistory.v1.Response
JSON SCHEMABookings.V2.RateForNewListingRequest
JSON SCHEMABookings.V2.RateForNewListing
JSON SCHEMACampaignAPI.v1.SocialPerformanceDataResponse
JSON SCHEMADemographicsResponse
JSON SCHEMADomainAvm.PI.v1.PropertyPriceEstimate
JSON SCHEMADomainAvm.v1.AvmReportResponse
JSON SCHEMADomainAvm.v1.AvmResponse
JSON SCHEMAEnquiries.V1.EnquiryReport
JSON SCHEMAListingAdmin.v2.CommercialListingV2
JSON SCHEMAListingPerformance.v1.Statistics
JSON SCHEMAListings.V1.Listing
JSON SCHEMAListings.V2.Listing
JSON SCHEMAListings.V2.Project
JSON SCHEMAMe.V1.AgencySummary
JSON SCHEMAMe.V1.MyDetails
JSON SCHEMAMe.V1.ProviderSummary
JSON SCHEMAPreMarket.v1.CreateOrUpdateListingResponse
JSON SCHEMAPreMarket.v1.ListingRequestJsonPatchDocument
JSON SCHEMAPreMarket.v1.ListingRequest
JSON SCHEMAPreMarket.v1.ListingResponse
JSON SCHEMAPropertyActivityAPI.v1.PortfolioCreated
JSON SCHEMAPropertyActivityAPI.v1.PortfolioDetails
JSON SCHEMAPropertyActivityAPI.v1.PortfolioList
JSON SCHEMAProperty.Enrichment.v2.PointRadiusGnafId
JSON SCHEMAProperty.Enrichment.v2.PointRadiusLatLon
JSON SCHEMAProperty.Enrichment.v2.PointRadiusParams
JSON SCHEMAProperty.Enrichment.v2.PointRadiusPropertyId
JSON SCHEMAProperty.Enrichment.v2.PropertyAddress-v2
JSON SCHEMAProperty.Enrichment.v2.PropertyFeatures
JSON SCHEMAProperty.Enrichment.v2.PropertyPerils
JSON SCHEMAProperty.Enrichment.v2.PropertyResults
JSON SCHEMAProperty.Enrichment.v2.Property
JSON SCHEMAProperty.Enrichment.v2.SaleHistory
JSON SCHEMAProperty.Enrichment.v2.SearchItemOutput
JSON SCHEMASchools.V2.School
JSON SCHEMASchools.V2.SchoolWithDistance
JSON SCHEMASuburbPerformance
JSON SCHEMASuburbSummaryAndHistorical
JSON SCHEMATypeAhead.v2.PropertiesSuggest
JSON SCHEMAWebhooks.v1.AddSubscriptionRequest
JSON SCHEMAWebhooks.v1.WebhookSubscription
JSON SCHEMAScroll for all 76
Security Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Scopes 1
OAuth scopes governing access to this provider's APIs.
Agentic Access 1
Recommended x-agentic-access execution contracts for AI agents.
Resources
Get Started 6
Portal, sign-up, and the first successful call
Documentation 7
Reference material describing how the API behaves
Scroll for all 7
Agent Surfaces 11
MCP servers, agent skills, and machine-readable catalogs
Scroll for all 11
Design & Contract 13
Pagination, idempotency, versioning, errors, and events
Scroll for all 13
Build 2
SDKs, sample code, and the tooling you integrate with
Access & Security 4
Authentication, authorization, and security posture
Operate 7
Status, limits, changes, and where to get help
Scroll for all 7
Commercial 2
Pricing, plans, and the legal terms of use
Company 1
The organization behind the API
Other 8
Properties that don't map to a standard resource type
Scroll for all 8
Source (apis.yml)
Domain Group API — frequently asked questions
Does Domain Group have an API?
Yes. APIs.io lists 31 APIs from Domain Group, including Domain Group Address Locators API, Domain Group Agencies API and Domain Group Agents API, and 28 more.
Is there an OpenAPI specification for the Domain Group API?
Yes. APIs.io indexes 31 OpenAPI specifications for Domain Group, each linked for download from this page.
How do I authenticate with the Domain Group API?
Domain Group documents its authentication (apiKey/oauth2 · 2 schemes). The details are profiled on APIs.io as Domain Group Authentication.
Is the Domain Group API ready for AI agents?
Domain Group has a Kin Score of 59.9 out of 100 (strong) and an Agent Readiness score of 43.6 (agent-ready), scored by API Evangelist on 2026-11-06.
Work with this as data
Every provider here is available over the APIs.io API and to AI agents over MCP.