aid: corelogic
name: CoreLogic (Cotality)
kind: company
description: CoreLogic — rebranded as Cotality in 2025 — is a property data and analytics company providing
  real estate, mortgage, tax, hazard, and climate-risk information across approximately 99% of U.S. residential
  properties plus operations in Australia, New Zealand, the United Kingdom, Canada, Germany, and India. The
  company was taken private by Stone Point Capital and Insight Partners in June 2021 in a $6B transaction.
  The primary public developer surface is Trestle (trestle-documentation.corelogic.com / api.cotality.com),
  which delivers MLS listing, member, office, media, and team data via a RESO Web API 2.0 / OData 4.0 endpoint,
  a RETS 1.8 endpoint, and a Direct Web API for Matrix CRM and MLO (member loan officer) integrations. Most
  other Cotality data products — 360 Property Data, Climate Risk Analytics, Discovery Platform — are delivered
  through cloud data shares (AWS, Databricks, Google Cloud, Azure, Snowflake) and SFTP rather than self-service
  REST APIs and are gated behind enterprise sales.
url: https://raw.githubusercontent.com/api-evangelist/corelogic/refs/heads/main/apis.yml
image: https://kinlane-productions2.s3.amazonaws.com/apis-json/apis-json-logo.jpg
type: Index
access: 3rd-Party
position: Consumer
tags:
  - Climate Risk
  - CoreLogic
  - Cotality
  - Direct Web API
  - Hazard Data
  - Insurance Data
  - Listings
  - Matrix MLS
  - Mortgage Data
  - MLS
  - OData
  - OneHome
  - OpenID Connect
  - Participant Reporting
  - Property Data
  - Real Estate
  - RESO Data Dictionary
  - RESO Web API
  - RETS
  - Tax Data
  - Trestle
created: '2026-05-23'
modified: '2026-05-23'
specificationVersion: '0.20'
apis:
  - aid: corelogic:trestle-reso-web-api
    name: Trestle RESO Web API
    description: Trestle's RESO Web API is an OData 4.0 / RESO Web API 2.0 compliant endpoint that delivers
      MLS Property, Member, Office, Media, OpenHouse, Teams, TeamMembers, PropertyRooms, PropertyUnitTypes,
      CustomProperty, Field, Lookup, Model, and HistoryTransactional resources across multiple aggregated
      U.S. MLSs. Authentication uses OAuth2 Client Credentials against api.cotality.com/trestle/oidc/connect/token
      with scope=api; tokens are valid for 8 hours. Query support includes $filter, $select, $expand, $orderby,
      $top (max 1000, or 300000 for key-only), $skip, $count, $apply=groupby (max 10000), Replication=true
      for 1M+ row datasets, and PrettyEnums=true. Conforms to the RESO Data Dictionary 2.0 and the RESO 2.0
      certification including CLIP (machine-learning property identifier) and UPI (Universal Parcel Identifier).
    image: https://kinlane-productions2.s3.amazonaws.com/apis-json/apis-json-logo.jpg
    humanURL: https://trestle-documentation.corelogic.com/webapi.html
    baseURL: https://api.cotality.com/trestle/odata
    tags:
      - Listings
      - MLS
      - OData
      - Property Data
      - RESO Data Dictionary
      - RESO Web API
      - Trestle
    properties:
      - type: Documentation
        url: https://trestle-documentation.corelogic.com/webapi.html
      - type: APIReference
        url: https://trestle-documentation.corelogic.com/webapi-reference.html
      - type: GettingStarted
        url: https://trestle-documentation.corelogic.com/webapi.html
      - type: Authorization
        url: https://trestle-documentation.corelogic.com/webapi.html
      - type: ClientLibraries
        url: https://trestle-documentation.corelogic.com/webapi-libraries.html
      - type: Scale
        url: https://trestle-documentation.corelogic.com/webapi-at-scale.html
      - type: Metadata
        url: https://api.cotality.com/trestle/odata/$metadata
      - type: RESOCommonFormat
        url: https://trestle-documentation.corelogic.com/reso-common-format.html
      - type: OpenAPI
        url: openapi/corelogic-trestle-reso-web-api-openapi.yml
      - type: Rules
        url: rules/corelogic-trestle-reso-web-api-rules.yml
      - type: NaftikoCapability
        url: capabilities/trestle-property-search.yaml
      - type: NaftikoCapability
        url: capabilities/trestle-media-fetch.yaml
      - type: NaftikoCapability
        url: capabilities/trestle-member-office-lookup.yaml
  - aid: corelogic:trestle-rets
    name: Trestle RETS
    description: Trestle's RETS endpoint implements the RETS 1.8 specification on top of the same data
      catalog as the RESO Web API. The service is session-less; authentication uses HTTP Basic with client
      credentials or OAuth2 bearer tokens issued from /trestle/oidc/connect/token with scope=rets. Supported
      transactions include Login, GetMetadata, Search (up to 1000 records per request, default 10), and
      GetObject for media. The same RESO resources are exposed as RETS SearchType / Class names (Property,
      Member, Office, Teams, Media, Lookup). Digest authentication is not supported.
    image: https://kinlane-productions2.s3.amazonaws.com/apis-json/apis-json-logo.jpg
    humanURL: https://trestle-documentation.corelogic.com/rets.html
    baseURL: https://api.cotality.com/trestle/rets
    tags:
      - Legacy
      - Listings
      - MLS
      - RETS
      - Trestle
    properties:
      - type: Documentation
        url: https://trestle-documentation.corelogic.com/rets.html
      - type: ClientLibraries
        url: https://trestle-documentation.corelogic.com/rets-libraries.html
      - type: Connector
        url: https://trestle-documentation.corelogic.com/rets-connector.html
  - aid: corelogic:direct-webapi-crm
    name: Direct Web API — CRM
    description: The Direct Web API provides a direct, bidirectional OData connection to the Matrix MLS
      CRM database. Resources include Contacts, EmailHistory, Lists (carts), PortalContents (with
      AddListingNote / MarkAsViewed / SetListingPreference actions), SavedSearches, UserRegistry, and a
      DashboardAPI for aggregated MyListings, HotSheet, MarketWatch, Concierge, and Timeline data.
      Authentication is OpenID Connect via Clareity Single Sign-On or basic authentication. Standard
      OData $select / $expand / $orderby / $filter query options are supported.
    image: https://kinlane-productions2.s3.amazonaws.com/apis-json/apis-json-logo.jpg
    humanURL: https://trestle-documentation.corelogic.com/direct-webapi-crm-reference.html
    baseURL: https://api.cotality.com/trestle/odata
    tags:
      - CRM
      - Direct Web API
      - Matrix MLS
      - OData
      - OpenID Connect
      - Trestle
    properties:
      - type: Documentation
        url: https://trestle-documentation.corelogic.com/direct-webapi-crm-reference.html
      - type: OpenAPI
        url: openapi/corelogic-direct-webapi-crm-openapi.yml
      - type: Rules
        url: rules/corelogic-direct-webapi-crm-rules.yml
      - type: NaftikoCapability
        url: capabilities/direct-webapi-crm-contacts.yaml
      - type: NaftikoCapability
        url: capabilities/direct-webapi-crm-saved-searches.yaml
  - aid: corelogic:direct-webapi-mlo
    name: Direct Web API — MLO
    description: The Direct Web API MLO reference exposes Member Loan Officer / lender-side data from
      the Matrix MLS platform via OData. Used to integrate originator and loan-officer profiles, branches,
      and licensing data into third-party CRM and lead-routing systems.
    image: https://kinlane-productions2.s3.amazonaws.com/apis-json/apis-json-logo.jpg
    humanURL: https://trestle-documentation.corelogic.com/direct-webapi-mlo-reference.html
    baseURL: https://api.cotality.com/trestle/odata
    tags:
      - Direct Web API
      - Lending
      - Matrix MLS
      - MLO
      - OData
      - Trestle
    properties:
      - type: Documentation
        url: https://trestle-documentation.corelogic.com/direct-webapi-mlo-reference.html
  - aid: corelogic:participant-reporting-api
    name: Participant Reporting API
    description: The Participant Reporting API allows MLS staff and brokerages to report broker/agent
      participation events back to Trestle. Documented in a published PDF reference; used for audit,
      compliance, and royalty/fee-share reporting against listing activity.
    image: https://kinlane-productions2.s3.amazonaws.com/apis-json/apis-json-logo.jpg
    humanURL: https://trestle-documentation.corelogic.com/ParticipantReportingHowTo.pdf
    baseURL: https://api.cotality.com/trestle/odata
    tags:
      - Compliance
      - MLS
      - Participant Reporting
      - Reporting
      - Trestle
    properties:
      - type: Documentation
        url: https://trestle-documentation.corelogic.com/ParticipantReportingHowTo.pdf
  - aid: corelogic:360-property-data
    name: 360 Property Data
    description: 360 Property Data is Cotality's enterprise property data product covering structure,
      ownership, tax, mortgages, hazard risk, climate risk, and geospatial overlays across approximately
      99% of U.S. residential properties. Delivery is via cloud data shares (AWS, Databricks, Google
      Cloud, Microsoft Azure, Snowflake) and SFTP rather than a self-service REST API; access is gated
      by enterprise sales contract. Sold to lenders, insurers, government, and proptech platforms.
    image: https://kinlane-productions2.s3.amazonaws.com/apis-json/apis-json-logo.jpg
    humanURL: https://www.cotality.com/360-property-data
    tags:
      - Data Share
      - Hazard Data
      - Mortgage Data
      - Property Data
      - Tax Data
    properties:
      - type: Overview
        url: https://www.cotality.com/360-property-data
      - type: CloudDataShare
        url: https://www.cotality.com/360-property-data
  - aid: corelogic:climate-risk-analytics
    name: Climate Risk Analytics
    description: Climate Risk Analytics (CRA) delivers parcel- and structure-level chronic climate risk
      indices and acute peril scores across the continental United States and the District of Columbia.
      Chronic Perils covers cold wave, heat wave, extreme precipitation, and drought via 84 indices,
      with IPCC SSP1-2.6, SSP2-4.5, SSP3-7.0, and SSP5-8.5 scenarios projected to 2030, 2040, and 2050.
      Acute Perils products cover wildfire, flood, hurricane, severe convective storm, and earthquake.
      Delivery is via AWS, Databricks, Google Cloud, Azure, Snowflake, and SFTP — semantic companion
      files ship alongside the data for AI/ML ingestion.
    image: https://kinlane-productions2.s3.amazonaws.com/apis-json/apis-json-logo.jpg
    humanURL: https://www.cotality.com/360-property-data/climate-risk-analytics
    tags:
      - Catastrophe Models
      - Climate Risk
      - Data Share
      - IPCC
      - Insurance Data
      - Perils
    properties:
      - type: Overview
        url: https://www.cotality.com/360-property-data/climate-risk-analytics
      - type: CloudDataShare
        url: https://www.cotality.com/360-property-data/climate-risk-analytics
common:
  - type: GitHubOrganization
    url: https://github.com/corelogic
  - type: Website
    url: https://www.cotality.com
  - type: LegacyWebsite
    url: https://www.corelogic.com
  - type: DeveloperPortal
    url: https://developer.corelogic.com
  - type: DeveloperPortalAPAC
    url: https://developer.corelogic.asia/
  - type: Documentation
    url: https://trestle-documentation.corelogic.com/
  - type: APIReference
    url: https://trestle-documentation.corelogic.com/webapi-reference.html
  - type: GettingStarted
    url: https://trestle-documentation.corelogic.com/webapi.html
  - type: Authorization
    url: https://trestle-documentation.corelogic.com/webapi.html
  - type: TokenEndpoint
    url: https://api.cotality.com/trestle/oidc/connect/token
  - type: BaseURL
    url: https://api.cotality.com/trestle/odata
  - type: FAQ
    url: https://trestle-documentation.corelogic.com/faq.html
  - type: ClientLibraries
    url: https://trestle-documentation.corelogic.com/webapi-libraries.html
  - type: SupportEmail
    url: mailto:trestlesupport@cotality.com
  - type: SupportPage
    url: https://www.cotality.com/support
  - type: SignIn
    url: https://developer.corelogic.asia/user/sign-in
  - type: SignUp
    url: https://developer.corelogic.asia/signup
  - type: Vocabulary
    url: vocabulary/corelogic-vocabulary.yml
  - type: JSONLD
    url: json-ld/corelogic-context.jsonld
  - type: Plans
    url: plans/corelogic-plans-pricing.yml
  - type: RateLimits
    url: rate-limits/corelogic-rate-limits.yml
  - type: FinOps
    url: finops/corelogic-finops.yml
  - type: PrivacyPolicy
    url: https://www.cotality.com/privacy-policy
  - type: TermsOfService
    url: https://www.cotality.com/terms-of-use
  - type: LinkedIn
    url: https://www.linkedin.com/company/cotality
  - type: News
    url: https://www.cotality.com/news
  - type: LLMsTxt
    url: https://developer.corelogic.asia/llms.txt
maintainers:
  - FN: Kin Lane
    email: kin@apievangelist.com