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OpenAPI Specification

openapi: 3.2.0
info:
  title: Homeward Offer Estimate Buybox API
  version: 1.0.0
  description: The Homeward Offer Estimate API is for Homeward cash-offer digital partners.
  contact:
    name: Homeward API
    email: api@homeward.com
    url: https://api-docs.homeward.com/
  x-apisjson-source: postman/homeward-offer-estimate-postman.json
  x-generated: '2026-07-19'
  x-method: derived
servers:
- url: https://api.homeward.com
  description: Production API host (BASE_URL)
tags:
- name: Buybox
  description: Property eligibility checks
paths:
  /buybox/:
    post:
      operationId: checkBuyboxEligibility
      tags:
      - Buybox
      summary: Buybox eligibility check
      description: Quick check of whether a property is likely within Homeward's buybox. Not a definitive determination. Per the docs this endpoint is separate from the rest of the API, requires no credential, and uses a different base URL / path format. Only state is required; more values improve accuracy.
      security: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/BuyboxRequest'
      responses:
        '200':
          description: Eligibility result
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/BuyboxResult'
        '422':
          description: Unprocessable request (validation failed)
components:
  schemas:
    BuyboxRequest:
      type: object
      required:
      - property_address
      properties:
        property_address:
          type: object
          required:
          - state
          properties:
            street_one:
              type: string
            street_two:
              type: string
            city:
              type: string
            state:
              type: string
              description: Standard 2-letter state abbreviation
            postal_code:
              type: string
        opinion_of_value:
          type: integer
        lot_size_acres:
          type: integer
        property_type:
          type: string
          enum:
          - Single Family
          - Unknown
          - Multi-Family
          - Luxury
          - Condo
          - Lot
          - Other
          - Commercial
          - Mobile Home
          - Townhouse
          - Timeshare
        listing_status:
          type: string
          enum:
          - Listed
          - Not Listed
          - Unknown
        year_built:
          type:
          - integer
          - string
    BuyboxResult:
      type: object
      required:
      - is_eligible
      properties:
        is_eligible:
          type: boolean
        reason_for_denial:
          type:
          - string
          - 'null'
          description: 'One of: Property lot size is outside of buybox; Year built is outside of buybox; Listing status is outside of buybox; Estimated sale price outside of buybox; Property type is outside of buybox; Property address outside of buybox'
  securitySchemes:
    tokenAuth:
      type: apiKey
      in: header
      name: Authentication
      description: Token authentication. Provide the testing or production token issued by Homeward in the Authentication header. Contact api@homeward.com to obtain tokens.