aid: attom-data url: https://raw.githubusercontent.com/api-evangelist/attom-data/refs/heads/main/apis.yml name: ATTOM kind: company description: ATTOM Data Solutions is a national property, real estate, and location data provider that curates a multi-sourced warehouse of data on 158+ million U.S. properties. The ATTOM API (also delivered as ATTOM Cloud) exposes that data over REST as a family of logical resources - property characteristics, tax assessments, automated valuations (AVM), sales and deed history, mortgage records, area and boundary geographies, schools, community and neighborhood data, points of interest, transportation noise, all-event snapshots, and home equity - queried by address, APN/FIPS, ATTOM ID, radius, or geoIdV4 and authenticated with an API key. image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg tags: - Property Data - Real Estate - Location Data - Valuation - AVM - Assessment - Mortgage - Neighborhood created: '2026-07-03' modified: '2026-07-03' specificationVersion: '0.19' apis: - aid: attom-data:attom-data-property-api name: ATTOM Property API tags: - Property - Characteristics - Address image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg humanURL: https://api.developer.attomdata.com/docs baseURL: https://api.gateway.attomdata.com/propertyapi/v1.0.0 properties: - url: https://api.developer.attomdata.com/docs type: Documentation - url: https://api.developer.attomdata.com/docs type: APIReference - url: openapi/attom-data-openapi.yml type: OpenAPI - url: collections/attom-data.postman_collection.json type: PostmanCollection - url: collections/attom-data.opencollection.json type: OpenCollection description: Core property characteristics for a single property or a list of properties, queried by address, APN/FIPS, ATTOM ID, or radius. Includes the basic profile, detail, expanded profile, id, address, snapshot, and detail-with-owner packages returning building, lot, location, and ownership attributes. - aid: attom-data:attom-data-assessment-api name: ATTOM Assessment API tags: - Assessment - Tax - Assessed Value image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg humanURL: https://api.developer.attomdata.com/docs baseURL: https://api.gateway.attomdata.com/propertyapi/v1.0.0 properties: - url: https://api.developer.attomdata.com/docs type: Documentation - url: openapi/attom-data-openapi.yml type: OpenAPI - url: collections/attom-data.postman_collection.json type: PostmanCollection - url: collections/attom-data.opencollection.json type: OpenCollection description: County tax assessment data - assessed and market values, tax amounts, exemptions, and the assessment history for a property, via the assessment detail, assessment snapshot, and assessment history packages. - aid: attom-data:attom-data-valuation-avm-api name: ATTOM AVM & Valuation API tags: - AVM - Valuation - Rental image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg humanURL: https://api.developer.attomdata.com/docs baseURL: https://api.gateway.attomdata.com/propertyapi/v1.0.0 properties: - url: https://api.developer.attomdata.com/docs type: Documentation - url: openapi/attom-data-openapi.yml type: OpenAPI - url: collections/attom-data.postman_collection.json type: PostmanCollection - url: collections/attom-data.opencollection.json type: OpenCollection description: Automated Valuation Model estimates for a property, including the ATTOM AVM detail, AVM snapshot, AVM history, and rental AVM packages, returning an estimated value with a confidence score and high/low value range. - aid: attom-data:attom-data-sales-deed-api name: ATTOM Sales & Deed API tags: - Sales - Deed - Transactions image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg humanURL: https://api.developer.attomdata.com/docs baseURL: https://api.gateway.attomdata.com/propertyapi/v1.0.0 properties: - url: https://api.developer.attomdata.com/docs type: Documentation - url: openapi/attom-data-openapi.yml type: OpenAPI - url: collections/attom-data.postman_collection.json type: PostmanCollection - url: collections/attom-data.opencollection.json type: OpenCollection description: Recorded sale and deed transactions plus multi-year sales history and sales trends - sale detail, sale snapshot, sales history (basic/expanded), and aggregated sales-trend counts and average/median prices by area and interval. - aid: attom-data:attom-data-mortgage-api name: ATTOM Mortgage API tags: - Mortgage - Lending - Owner image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg humanURL: https://api.developer.attomdata.com/docs baseURL: https://api.gateway.attomdata.com/propertyapi/v1.0.0 properties: - url: https://api.developer.attomdata.com/docs type: Documentation - url: openapi/attom-data-openapi.yml type: OpenAPI - url: collections/attom-data.postman_collection.json type: PostmanCollection - url: collections/attom-data.opencollection.json type: OpenCollection description: Property records enriched with mortgage and lender information via the detail-with-mortgage and detail-with-mortgage-and-owner packages, returning loan amounts, lenders, loan types, and recording dates alongside owner details. - aid: attom-data:attom-data-area-boundary-api name: ATTOM Area & Boundary API tags: - Area - Boundary - Geography image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg humanURL: https://cloud-help.attomdata.com/article/612-attom-api-v4 baseURL: https://api.gateway.attomdata.com/areaapi/v2.0.0 properties: - url: https://cloud-help.attomdata.com/article/612-attom-api-v4 type: Documentation - url: openapi/attom-data-openapi.yml type: OpenAPI - url: collections/attom-data.postman_collection.json type: PostmanCollection - url: collections/attom-data.opencollection.json type: OpenCollection description: Geography services that resolve and describe ATTOM area codes - geoId/geoIdV4 lookups by name and geography type, area hierarchy lookups, location lookups, and boundary geometry returned in GeoJSON for counties, places, neighborhoods, school districts, and ZIP code tabulation areas. - aid: attom-data:attom-data-school-api name: ATTOM School API tags: - School - Education - District image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg humanURL: https://api.developer.attomdata.com/docs baseURL: https://api.gateway.attomdata.com/propertyapi/v1.0.0 properties: - url: https://api.developer.attomdata.com/docs type: Documentation - url: openapi/attom-data-openapi.yml type: OpenAPI - url: collections/attom-data.postman_collection.json type: PostmanCollection - url: collections/attom-data.opencollection.json type: OpenCollection description: School and school-district data - search schools near a location or attendance zone, retrieve an individual school profile with ratings and enrollment, get district details, and attach school attendance zones to a property via the detail-with-schools package. - aid: attom-data:attom-data-community-api name: ATTOM Community & Neighborhood API tags: - Community - Neighborhood - Demographics image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg humanURL: https://api.developer.attomdata.com/docs baseURL: https://api.gateway.attomdata.com/v4 properties: - url: https://api.developer.attomdata.com/docs type: Documentation - url: openapi/attom-data-openapi.yml type: OpenAPI - url: collections/attom-data.postman_collection.json type: PostmanCollection - url: collections/attom-data.opencollection.json type: OpenCollection description: Neighborhood and community context for a place or geoIdV4 - climate, crime, demographics, natural hazards, education, commute, and quality-of-life indicators returned by the v4 community endpoint. - aid: attom-data:attom-data-poi-api name: ATTOM POI API tags: - POI - Points of Interest - Location image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg humanURL: https://cloud-help.attomdata.com/article/641-upgrading-to-poi-endpoint-v4 baseURL: https://api.gateway.attomdata.com/v4 properties: - url: https://cloud-help.attomdata.com/article/641-upgrading-to-poi-endpoint-v4 type: Documentation - url: openapi/attom-data-openapi.yml type: OpenAPI - url: collections/attom-data.postman_collection.json type: PostmanCollection - url: collections/attom-data.opencollection.json type: OpenCollection description: Points-of-interest search returning nearby businesses and amenities - grocery, dining, schools, parks, healthcare, and more - within a radius or area, plus a POI category lookup for the supported business categories. - aid: attom-data:attom-data-transportation-noise-api name: ATTOM Transportation Noise API tags: - Transportation Noise - Environment - Location image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg humanURL: https://api.developer.attomdata.com/docs baseURL: https://api.gateway.attomdata.com properties: - url: https://api.developer.attomdata.com/docs type: Documentation - url: openapi/attom-data-openapi.yml type: OpenAPI - url: collections/attom-data.postman_collection.json type: PostmanCollection - url: collections/attom-data.opencollection.json type: OpenCollection description: Modeled transportation-noise scores for a location, estimating noise exposure from road, rail, and air traffic at a set of coordinates or for a property. - aid: attom-data:attom-data-allevents-api name: ATTOM AllEvents & Snapshot API tags: - Events - Snapshot - History image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg humanURL: https://api.developer.attomdata.com/docs baseURL: https://api.gateway.attomdata.com/propertyapi/v1.0.0 properties: - url: https://api.developer.attomdata.com/docs type: Documentation - url: openapi/attom-data-openapi.yml type: OpenAPI - url: collections/attom-data.postman_collection.json type: PostmanCollection - url: collections/attom-data.opencollection.json type: OpenCollection description: A consolidated view of every event on a property - assessment, AVM, sale, deed, and mortgage - in a single call via the allevents detail and snapshot packages, ideal for building a full property timeline. - aid: attom-data:attom-data-home-equity-api name: ATTOM Home Equity API tags: - Home Equity - Valuation - Lending image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg humanURL: https://api.developer.attomdata.com/docs baseURL: https://api.gateway.attomdata.com/propertyapi/v1.0.0 properties: - url: https://api.developer.attomdata.com/docs type: Documentation - url: openapi/attom-data-openapi.yml type: OpenAPI - url: collections/attom-data.postman_collection.json type: PostmanCollection - url: collections/attom-data.opencollection.json type: OpenCollection description: Estimated home equity for a property, combining the AVM value with outstanding mortgage balances to return an estimated equity position and loan-to-value indication via the valuation home-equity package. common: - type: DomainSecurity url: security/attom-data-domain-security.yml - type: Authentication url: authentication/attom-data-authentication.yml - type: LinkedIn url: https://www.linkedin.com/company/attom-data-solutions - type: Website url: https://www.attomdata.com - type: Documentation url: https://api.developer.attomdata.com/docs - type: Plans url: plans/attom-data-plans-pricing.yml - type: RateLimits url: rate-limits/attom-data-rate-limits.yml - url: https://www.attomdata.com/feed/ type: Blog - type: FinOps url: finops/attom-data-finops.yml maintainers: - FN: Kin Lane email: kin@apievangelist.com