090°Open data
Open datasets, fully documented — searchable here, and readable by any LLM.
2 datasets
Realtor.com Economic Research
Monthly US metro housing-supply intelligence from Realtor.com Economic Research's Inventory Core Metrics (keyless public CSV, 925 CBSAs metro + micro, 2016-07 -> present: median listing price, active/new/pending listings, median days on market, price-cut share, pending ratio). Per (month, metro): 12-month changes of price, inventory, new/pending supply and days on market; trailing-12-month z-scores of inventory scarcity, sales velocity, price-cut pressure and absorption; a documented 0-100 seller-heat index (thin inventory + fast sales + rising prices + strong absorption) with heat tiers and per-month cross-sectional percentiles; seller's/buyer's market flags; inventory-surge, price-cut-wave and stale-market flags. Upstream gaps fail the ingest loud, never imputed. The supply-side complement to the ZHVI value-momentum and ZORI rent panels: hot seller's markets read as confident household balance sheets (Shopify demand, HubSpot territory heat), loosening markets as affordability stress and churn risk (Stripe) — joinable on ISO month + metro. Realtor.com data reused with required attribution; commercial_use=no.
Zillow Research
Monthly US metro home-value momentum intelligence from Zillow Research's Zillow Home Value Index (ZHVI), metro grain (keyless public CSV, 894 US metros + national reference, 2000-01 -> present, smoothed seasonally-adjusted typical home values in $). Per (month, metro): home-value level, month-over-month, 12-month and 3-month-annualized momentum, acceleration in percentage points, deviation from the national home value, per-month cross-sectional dense rank / percentile / z-score of appreciation, a documented 0-100 home-value heat score (fast vs peers + expensive vs nation + accelerating) with heat tiers, and hot/cold/cooling/36-month-record flags. Upstream coverage gaps stay null, never imputed. The owner's wealth complement to the ZORI rent-pressure panel: appreciating metros expand household balance sheets (Shopify demand), cooling prints flag churn/pause risk (Stripe subscriptions), and the ranks heat-map sales territories (HubSpot) — joinable on ISO month + metro. Zillow aggregate data reused under the Zillow Terms of Use (non-personal market-analysis use of aggregate data with "Data Provided by Zillow Group" attribution); source: Zillow Research.
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