generated: '2026-07-20'
method: derived
source: openapi/perchwell-reso-web-api-openapi.yml
docs: https://docs.perchwell.com/#/reso_getting_started
description: >-
  Entity-relationship graph derived from Perchwell's RESO Web API resources and
  their RESO key references. Property is the central listing entity; Member
  (agent) and Office are related parties; Media is nested within Property;
  OpenHouse references a Property.
entities:
- name: Property
  key: ListingKey
  description: RESO Property resource (a listing). Central entity.
  relationships:
  - type: belongs_to
    target: Member
    via: ListAgentKey
  - type: belongs_to
    target: Office
    via: ListOfficeKey
  - type: has_many
    target: Media
    via: Media (nested, max 100)
  - type: has_many
    target: OpenHouse
    via: ListingKey
- name: Member
  key: MemberKey
  description: RESO Member resource (an agent).
  relationships:
  - type: belongs_to
    target: Office
    via: OfficeKey
- name: Office
  key: OfficeKey
  description: RESO Office resource.
  relationships:
  - type: has_many
    target: Member
    via: OfficeKey
- name: OpenHouse
  key: OpenHouseKey
  description: RESO OpenHouse resource.
  relationships:
  - type: belongs_to
    target: Property
    via: ListingKey
- name: Media
  key: MediaKey
  description: RESO Media resource, nested within Property.
  relationships:
  - type: belongs_to
    target: Property
    via: ResourceRecordKey