Enums

BuildingType

Value	Description
CONDO	Condominium
CO_OP	Co-operative
RENTAL	Rental building
TOWNHOUSE	Townhouse
MULTI_FAMILY	Multi-family house
HOUSE	Single-family house

ListingStatus

Value	Description
ACTIVE	Currently available
IN_CONTRACT	Under contract / offer accepted
OFF_MARKET	No longer available

SaleType

Value	Description
RESALE	Standard resale
SPONSOR_UNIT	New development / sponsor sale
FORECLOSURE	Foreclosure

Sort

Value	Description
RECOMMENDED	Default relevance ranking
PRICE	Sort by price
LISTED_AT	Sort by listing date
PRICE_PER_SQFT	Sort by price per square foot

SortDirection

Value	Description
ASC	Ascending (low to high, oldest first)
DESC	Descending (high to low, newest first)

PriceEvent

Value	Description
LISTED	Initial listing
PRICE_INCREASE	Price raised
PRICE_DECREASE	Price reduced
DELISTED	Removed from market
RENTED	Rented
SOLD	Sold

ErrorCode

Value	HTTP Status	Description
INVALID_PARAMS	400	Invalid request parameters
MISSING_API_KEY	401	No API key provided
INVALID_API_KEY	401	Unrecognized API key
EXPIRED_API_KEY	401	Subscription expired
TIER_RESTRICTED	403	Higher tier required
QUOTA_EXCEEDED	429	Monthly quota exceeded
NOT_FOUND	404	Resource not found
RATE_LIMIT_EXCEEDED	429	Rate limit exceeded
INTERNAL_ERROR	500	Unexpected error
UPSTREAM_ERROR	502	Data source error
SERVICE_DISABLED	503	API temporarily disabled

WebhookEvent

Value	Description
listing.created	New listing appeared
listing.price_decreased	Price dropped >$25
listing.price_increased	Price raised >$25
listing.status_changed	Status changed
listing.expired	Listing went off-market