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RealEstatePlatform

v3.0.0

DigitalEntity

RealEstate

v3 schema for digital real estate platforms that mediate transactions and lead flows between property seekers, listing providers, and real estate professionals.

Top-level required

Required modules

Capability groups

Entity properties

Canonical Files

Contract URL: https://schemas.meta-aiml.org/v3.0.0/entity/real_estate_platform.json

Example URL: https://schemas.meta-aiml.org/v3.0.0/examples/real_estate_platform_example_schema_v3.json

Inheritance Chain

https://schemas.meta-aiml.org/v3.0.0/ontology/digital_entity.json

https://schemas.meta-aiml.org/v3.0.0/archetypes/mediated_exchange.json

Interaction archetype

MediatedExchange

Required Top-level Fields

These fields are enforced by JSON Schema required[] at root level.

@type

ontologicalMode

interactionArchetype

domain

name

description

deliveryFormat

capabilities

structuralMetadata

modules

Non-universal required fields

interactionArchetype

Entity-specific Properties

Keys under properties.properties dedicated to this entity contract.

agentVettingRequired

contactPoints

identifiers

listingVerificationModel

marketSegment

socialProfiles

supportsDigitalDocumentExchange

supportsMortgagePrequalification

supportsVirtualTours

Modules Contract

Required modules

No required modules for this entity.

Optional modules

listingManagement

matchmaking

transactionSupport

Capabilities Contract

Required capability groups

commerce

financial

interaction

Optional capability groups

community

content

Governance Validation Rules

Normative rule list from governanceMetadata.sdkValidationRules.

RULE-REPL-001: @type MUST equal "RealEstatePlatform"

RULE-REPL-002: ontologicalMode MUST equal "DigitalEntity"

RULE-REPL-003: interactionArchetype MUST contain "MediatedExchange"

RULE-REPL-004: capabilities MUST include commerce, financial, interaction

RULE-REPL-005: structuralMetadata.topology MUST equal "triadic"

RULE-REPL-006: structuralMetadata.valueSource MUST equal "transaction_mediation"

Canonical Contract JSON

https://schemas.meta-aiml.org/v3.0.0/entity/real_estate_platform.json

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "@context": [
    "https://schemas.meta-aiml.org/v3.0.0/context.jsonld"
  ],
  "@id": "https://schemas.meta-aiml.org/v3.0.0/entity/real_estate_platform.json",
  "$id": "https://schemas.meta-aiml.org/v3.0.0/entity/real_estate_platform.json",
  "@type": "RealEstatePlatform",
  "schemaVersion": "3.0.0",
  "aimlVersion": "3.0.0",
  "title": "Real Estate Platform Entity Schema",
  "description": "v3 schema for digital real estate platforms that mediate transactions and lead flows between property seekers, listing providers, and real estate professionals.",
  "examples": [
    {
      "description": "Residential property platform mediating buyer and seller interactions with listing verification",
      "reference": "real_estate_platform_example_residential"
    },
    {
      "description": "Rental marketplace platform connecting tenants and landlords with digital application workflows",
      "reference": "real_estate_platform_example_rentals"
    }
  ],
  "type": "object",
  "additionalProperties": false,
  "allOf": [
    {
      "$ref": "../ontology/digital_entity.json"
    },
    {
      "$ref": "../archetypes/mediated_exchange.json"
    }
  ],
  "properties": {
    "@type": {
      "const": "RealEstatePlatform"
    },
    "ontologicalMode": {
      "const": "DigitalEntity"
    },
    "interactionArchetype": {
      "type": "array",
      "contains": {
        "const": "MediatedExchange"
      },
      "items": {
        "type": "string",
        "enum": [
          "MediatedExchange"
        ]
      }
    },
    "domain": {
      "const": "RealEstate"
    },
    "businessModel": {
      "type": "array",
      "items": {
        "type": "string",
        "enum": [
          "Commission",
          "ListingFees",
          "Subscription",
          "Advertising"
        ]
      }
    },
    "deliveryFormat": {
      "type": "array",
      "items": {
        "type": "string",
        "enum": [
          "WebApp",
          "MobileApp",
          "API"
        ]
      }
    },
    "name": {
      "$ref": "../components/multilingual_format.json#/$defs/LocalizedText"
    },
    "description": {
      "$ref": "../components/multilingual_format.json#/$defs/LocalizedText"
    },
    "shortDescription": {
      "$ref": "../components/multilingual_format.json#/$defs/LocalizedTextOrString"
    },
    "url": {
      "type": "string",
      "format": "uri"
    },
    "foundingDate": {
      "type": "string",
      "format": "date"
    },
    "properties": {
      "type": "object",
      "properties": {
        "marketSegment": {
          "type": "string",
          "enum": [
            "residential",
            "commercial",
            "rental",
            "hybrid"
          ]
        },
        "listingVerificationModel": {
          "type": "string",
          "enum": [
            "manual",
            "automated",
            "hybrid"
          ]
        },
        "supportsVirtualTours": {
          "type": "boolean"
        },
        "supportsMortgagePrequalification": {
          "type": "boolean"
        },
        "supportsDigitalDocumentExchange": {
          "type": "boolean"
        },
        "agentVettingRequired": {
          "type": "boolean"
        },
        "contactPoints": {
          "type": "array",
          "items": {
            "$ref": "../components/common_defs.json#/$defs/ContactPoint"
          }
        },
        "socialProfiles": {
          "type": "array",
          "items": {
            "$ref": "../components/common_defs.json#/$defs/SocialProfile"
          }
        },
        "identifiers": {
          "type": "array",
          "items": {
            "$ref": "../components/common_defs.json#/$defs/Identifier"
          }
        }
      }
    },
    "capabilities": {
      "type": "object",
      "required": [
        "commerce",
        "financial",
        "interaction"
      ],
      "properties": {
        "commerce": {
          "$ref": "../components/capability_groups.json#/$defs/CommerceCapabilities"
        },
        "financial": {
          "$ref": "../components/capability_groups.json#/$defs/FinancialCapabilities"
        },
        "interaction": {
          "$ref": "../components/capability_groups.json#/$defs/InteractionCapabilities"
        },
        "content": {
          "$ref": "../components/capability_groups.json#/$defs/ContentCapabilities"
        },
        "community": {
          "$ref": "../components/capability_groups.json#/$defs/CommunityCapabilities"
        }
      }
    },
    "modules": {
      "type": "object",
      "properties": {
        "listingManagement": {
          "type": "object",
          "properties": {
            "bulkUploadEnabled": {
              "type": "boolean"
            },
            "duplicateDetectionEnabled": {
              "type": "boolean"
            },
            "listingModerationEnabled": {
              "type": "boolean"
            }
          }
        },
        "matchmaking": {
          "type": "object",
          "properties": {
            "leadScoringEnabled": {
              "type": "boolean"
            },
            "savedSearchAlertsEnabled": {
              "type": "boolean"
            },
            "availabilityMatchingEnabled": {
              "type": "boolean"
            }
          }
        },
        "transactionSupport": {
          "type": "object",
          "properties": {
            "offerWorkflowEnabled": {
              "type": "boolean"
            },
            "escrowAssistanceEnabled": {
              "type": "boolean"
            },
            "complianceChecklistsEnabled": {
              "type": "boolean"
            }
          }
        }
      }
    },
    "structuralMetadata": {
      "type": "object",
      "properties": {
        "topology": {
          "const": "triadic"
        },
        "roles": {
          "const": [
            "buyer",
            "seller",
            "platform"
          ]
        },
        "valueSource": {
          "const": "transaction_mediation"
        },
        "transactionFlow": {
          "const": "escrow"
        },
        "networkEffects": {
          "const": "cross_side"
        },
        "trustModel": {
          "type": "string",
          "enum": [
            "verification_first",
            "reputation_assisted",
            "hybrid"
          ]
        }
      }
    },
    "targetAudience": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "siteCapabilities": {
      "type": "object",
      "properties": {
        "supportedDevices": {
          "type": "array",
          "items": {
            "type": "string",
            "enum": [
              "desktop",
              "mobile",
              "tablet"
            ]
          }
        },
        "languages": {
          "type": "array",
          "items": {
            "type": "string"
          }
        },
        "accessibilityFeatures": {
          "type": "array",
          "items": {
            "type": "string"
          }
        }
      }
    }
  },
  "required": [
    "@type",
    "ontologicalMode",
    "interactionArchetype",
    "domain",
    "name",
    "description",
    "deliveryFormat",
    "capabilities",
    "structuralMetadata",
    "modules"
  ],
  "validationMetadata": {
    "schemaVersion": "3.0.0",
    "phase": "entity",
    "status": "draft",
    "lastValidated": "2026-02-20T12:00:00Z",
    "validator": "META-AIML QA"
  },
  "semanticAnnotations": {
    "classificationRationale": "RealEstatePlatform is modeled as DigitalEntity + MediatedExchange because platform value is created by matching and facilitating transactions between distinct market sides.",
    "disambiguationNotes": "Different from direct broker service websites where one provider sells own inventory. This schema targets multi-party mediation and exchange flows."
  },
  "governanceMetadata": {
    "entityVersion": "3.0.0",
    "introducedIn": "META-AIML v3.0.0",
    "stabilityLevel": "draft",
    "sdkValidationRules": [
      "RULE-REPL-001: @type MUST equal \"RealEstatePlatform\"",
      "RULE-REPL-002: ontologicalMode MUST equal \"DigitalEntity\"",
      "RULE-REPL-003: interactionArchetype MUST contain \"MediatedExchange\"",
      "RULE-REPL-004: capabilities MUST include commerce, financial, interaction",
      "RULE-REPL-005: structuralMetadata.topology MUST equal \"triadic\"",
      "RULE-REPL-006: structuralMetadata.valueSource MUST equal \"transaction_mediation\""
    ]
  }
}

Filled Example Instance

https://schemas.meta-aiml.org/v3.0.0/examples/real_estate_platform_example_schema_v3.json

{
  "@context": [
    "https://schemas.meta-aiml.org/v3.0.0/context.jsonld"
  ],
  "@id": "https://data.meta-aiml.org/v3.0.0/examples/real_estate_platform/atlas-homes-exchange",
  "$id": "https://data.meta-aiml.org/v3.0.0/examples/real_estate_platform/atlas-homes-exchange",
  "@type": "RealEstatePlatform",
  "schemaVersion": "3.0.0",
  "aimlVersion": "3.0.0",
  "title": "Example Filled Real Estate Platform Example (Atlas Homes Exchange)",
  "ontologicalMode": "DigitalEntity",
  "interactionArchetype": [
    "MediatedExchange"
  ],
  "domain": "RealEstate",
  "businessModel": [
    "Commission",
    "ListingFees",
    "Subscription",
    "Advertising"
  ],
  "deliveryFormat": [
    "WebApp",
    "MobileApp",
    "API"
  ],
  "name": {
    "en": "Atlas Homes Exchange",
    "es": "Atlas Homes Exchange",
    "fr": "Atlas Homes Exchange"
  },
  "description": {
    "en": "Atlas Homes Exchange is a fictional real estate platform mediating buyer, seller, and agent interactions through listing verification, offer workflows, and escrow-support transaction orchestration.",
    "es": "Atlas Homes Exchange es una plataforma inmobiliaria ficticia que media entre compradores, vendedores y agentes con verificacion de anuncios y flujos de oferta con soporte de escrow.",
    "fr": "Atlas Homes Exchange est une plateforme immobiliere fictive qui medie entre acheteurs, vendeurs et agents avec verification des annonces et orchestration des offres avec support escrow."
  },
  "shortDescription": {
    "en": "Real estate marketplace with listing verification, lead matching, and escrow-oriented transaction support.",
    "es": "Marketplace inmobiliario con verificacion de anuncios, matching de leads y soporte de transaccion orientado a escrow.",
    "fr": "Place de marche immobiliere avec verification d annonces, matching des leads et support transactionnel oriente escrow."
  },
  "url": "https://atlas-homes-exchange.example",
  "foundingDate": "2018-02-19",
  "createdDate": "2026-02-20T20:30:00Z",
  "lastModified": "2026-02-20T20:30:00Z",
  "examples": [
    {
      "scenario": "Spring inventory spike in suburban market",
      "note": "AI should prioritize triadic mediation logic, listing trust signals, and buyer-seller-agent role routing rather than direct inventory assumptions."
    },
    {
      "scenario": "High volume of contingent offers",
      "note": "AI should map negotiation and compliance workflows to escrow-oriented transaction support and document exchange modules."
    }
  ],
  "properties": {
    "marketSegment": "hybrid",
    "listingVerificationModel": "hybrid",
    "supportsVirtualTours": true,
    "supportsMortgagePrequalification": true,
    "supportsDigitalDocumentExchange": true,
    "agentVettingRequired": true,
    "contactPoints": [
      {
        "contactType": "support",
        "telephone": "+1-512-555-0197",
        "email": "support@atlas-homes-exchange.example",
        "url": "https://atlas-homes-exchange.example/help",
        "areaServed": "US",
        "availableLanguages": [
          "en",
          "es",
          "fr"
        ]
      },
      {
        "contactType": "sales",
        "telephone": "+1-512-555-0134",
        "email": "broker-partners@atlas-homes-exchange.example",
        "url": "https://atlas-homes-exchange.example/partners",
        "areaServed": "US",
        "availableLanguages": [
          "en"
        ]
      }
    ],
    "socialProfiles": [
      {
        "platform": "linkedin",
        "url": "https://www.linkedin.com/company/atlas-homes-exchange",
        "username": "atlas-homes-exchange"
      },
      {
        "platform": "instagram",
        "url": "https://instagram.com/atlashomesexchange",
        "username": "atlashomesexchange"
      }
    ],
    "identifiers": [
      {
        "type": "url",
        "value": "https://atlas-homes-exchange.example"
      },
      {
        "type": "custom",
        "value": "REP-AHE-001"
      }
    ]
  },
  "capabilities": {
    "commerce": {
      "features": [
        "productCatalog",
        "listingManagement",
        "pricing",
        "search",
        "filtering",
        "comparisons"
      ],
      "hasProductCatalog": true,
      "catalogSize": 182400,
      "supportsCart": false,
      "supportsCheckout": true,
      "hasOrderTracking": true,
      "recommendationEngine": true,
      "vendorManagement": true,
      "searchCapability": true,
      "filteringOptions": [
        "price",
        "location",
        "property_type",
        "bedrooms",
        "listing_status"
      ]
    },
    "financial": {
      "features": [
        "payments",
        "invoicing",
        "refunds",
        "billing",
        "subscriptionManagement",
        "escrow"
      ],
      "paymentMethods": [
        "bank_transfer",
        "credit_card",
        "digital_wallet"
      ],
      "acceptsCreditCards": true,
      "currencies": [
        "USD"
      ],
      "priceRange": "transaction_and_subscription",
      "commissionModel": "percentage",
      "commissionRate": 2.9,
      "supportsSubscriptions": true,
      "supportsInvoicing": true,
      "refundPolicy": "partial_refund"
    },
    "interaction": {
      "features": [
        "messaging",
        "commenting",
        "rating",
        "reviews",
        "notifications",
        "matching"
      ],
      "interactionMethods": [
        "in_app_messaging",
        "online_form",
        "email",
        "phone_call"
      ],
      "availableActions": [
        "search_properties",
        "request_tour",
        "submit_offer",
        "contact_agent",
        "track_transaction"
      ],
      "hasMessaging": true,
      "hasComments": true,
      "hasRating": true,
      "hasReviews": true,
      "hasSocialGraph": false,
      "hasFeed": true,
      "hasNotifications": true,
      "hasMatching": true,
      "realTimeCommunication": true,
      "moderationEnabled": true,
      "privacyControls": [
        "public",
        "private",
        "semi_anonymous"
      ]
    },
    "content": {
      "features": [
        "publishing",
        "curation",
        "search",
        "categories",
        "tags",
        "archives"
      ],
      "contentTypes": [
        "listing",
        "market_report",
        "neighborhood_guide",
        "faq"
      ],
      "contentFormats": [
        "text",
        "html",
        "json",
        "webp"
      ],
      "contentAccess": [
        "public",
        "member"
      ],
      "editorialControl": true,
      "userGeneratedContent": true,
      "mediaHosting": true,
      "searchPossible": true,
      "hasCategorization": true,
      "hasTagging": true,
      "archiveAccess": true,
      "rssFeeds": false
    },
    "community": {
      "features": [
        "groups",
        "communities",
        "discovery",
        "moderation",
        "membershipManagement"
      ],
      "supportsGroups": true,
      "supportsChannels": false,
      "communitiesCount": 140,
      "hasDiscovery": true,
      "hasModeration": true,
      "moderationModel": "ai_assisted_human",
      "hasMembershipManagement": true,
      "membershipTypes": [
        "buyer",
        "seller",
        "agent",
        "broker"
      ],
      "supportsGroupEvents": false,
      "supportsPolls": true,
      "hasGovernance": true,
      "governanceModel": "centralized",
      "privacyLevels": [
        "public",
        "closed"
      ]
    }
  },
  "modules": {
    "listingManagement": {
      "bulkUploadEnabled": true,
      "duplicateDetectionEnabled": true,
      "listingModerationEnabled": true
    },
    "matchmaking": {
      "leadScoringEnabled": true,
      "savedSearchAlertsEnabled": true,
      "availabilityMatchingEnabled": true
    },
    "transactionSupport": {
      "offerWorkflowEnabled": true,
      "escrowAssistanceEnabled": true,
      "complianceChecklistsEnabled": true
    },
    "listingData": {
      "listingDiscovery": {
        "canonicalListingUrl": "https://atlas-homes-exchange.example/listings",
        "dataSources": [
          {
            "sourceType": "file_export",
            "sourceUrl": "https://atlas-homes-exchange.example/data/listings-feed.xml",
            "format": "xml",
            "updateCadence": "daily"
          }
        ]
      }
    }
  },
  "structuralMetadata": {
    "topology": "triadic",
    "roles": [
      "buyer",
      "seller",
      "platform"
    ],
    "valueSource": "transaction_mediation",
    "transactionFlow": "escrow",
    "networkEffects": "cross_side",
    "trustModel": "hybrid"
  },
  "targetAudience": [
    "home_buyers",
    "home_sellers",
    "real_estate_agents",
    "property_investors"
  ],
  "siteCapabilities": {
    "supportedDevices": [
      "desktop",
      "mobile",
      "tablet"
    ],
    "languages": [
      "en",
      "es",
      "fr"
    ],
    "accessibilityFeatures": [
      "keyboard_navigation",
      "screen_reader_labels",
      "text_scaling",
      "high_contrast_mode"
    ]
  },
  "validationMetadata": {
    "schemaVersion": "3.0.0",
    "phase": "example_instance",
    "status": "reference",
    "lastValidated": "2026-02-20T20:30:00Z",
    "validator": "META-AIML SDK v3"
  },
  "semanticAnnotations": {
    "classificationRationale": "RealEstatePlatform is modeled as DigitalEntity plus MediatedExchange because value is produced by matching and facilitating transactions between market sides.",
    "disambiguationNotes": "This model is not a single brokerage direct-service site. It represents marketplace-style listing mediation and escrow-oriented transaction support.",
    "intendedUse": "Canonical filled reference for real estate platforms publishing static schema metadata for AI interpretation."
  },
  "governanceMetadata": {
    "entityVersion": "3.0.0",
    "introducedIn": "META-AIML v3.0.0",
    "stabilityLevel": "reference",
    "sdkValidationRules": [
      "RULE-REGF-001: @type MUST equal \"RealEstatePlatform\"",
      "RULE-REGF-002: ontologicalMode MUST equal \"DigitalEntity\"",
      "RULE-REGF-003: interactionArchetype MUST contain exactly one value: \"MediatedExchange\"",
      "RULE-REGF-004: capabilities MUST include commerce, financial, and interaction groups",
      "RULE-REGF-005: modules.transactionSupport MUST define offer and escrow support workflows",
      "RULE-REGF-006: structuralMetadata constants MUST align with MediatedExchange archetype",
      "RULE-REGF-007: examples MUST include at least two operational scenarios",
      "RULE-REGF-008: schema MUST NOT expose credential or secret fields"
    ]
  }
}

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