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POST
https://propx402.xyz
/
property-intel
POST /property-intel
curl --request POST \
  --url https://propx402.xyz/property-intel \
  --header 'Content-Type: application/json' \
  --data '
{
  "address": "<string>"
}
'
{
  "data": {
    "location": {
      "address": "1411 8th Ave SE, Cedar Rapids, IA 52403",
      "lat": 41.9614,
      "lon": -91.6401,
      "city": "Cedar Rapids",
      "state": "Iowa",
      "stateCode": "IA",
      "zip": "52403",
      "county": "Linn"
    },
    "property": {
      "propertyType": "Single Family",
      "bedrooms": 3,
      "bathrooms": 1,
      "squareFeet": 1248,
      "yearBuilt": 1910,
      "lastSaleDate": "2020-06-15",
      "lastSalePrice": 118000,
      "rentEstimate": {
        "rentLow": 1050,
        "rentEstimate": 1168,
        "rentHigh": 1285
      },
      "valueEstimate": {
        "valueLow": 104000,
        "valueEstimate": 131000,
        "valueHigh": 158000
      }
    },
    "floodRisk": {
      "zone": "X",
      "riskLevel": "Minimal",
      "inFloodZone": false
    },
    "walkability": {
      "walkScore": 52,
      "walkLabel": "Somewhat Walkable",
      "totalAmenitiesNearby": 18
    },
    "riskScore": 15,
    "riskLabel": "Low",
    "meta": {
      "processingMs": 5850,
      "dataSources": ["OpenStreetMap", "RentCast", "FEMA", "...14 total"]
    }
  }
}
Free test version available: POST /test/property-intel — same request/response, no wallet needed.

​
Overview

Aggregates 14 data sources in parallel into a comprehensive property intelligence report. Includes property valuation, rent estimate, flood zone, walkability, census demographics, environmental data, earthquake and tornado hazards, broadband availability, HUD opportunity zone, FRED housing price index, BLS job market, and FEMA disaster history. Price: $0.05 USDC on Base mainnet via x402

​
Request

​
address
string
required
Full US property address including city, state, and zip.Example: "1411 8th Ave SE, Cedar Rapids, IA 52403"

​
Response

​
location
object
Geocoded address components — lat, lon, city, state, zip, county.
​
property
object
Property details from RentCast — type, beds, baths, sqft, year built, last sale, AVM, and rent estimate with comparables.
​
floodRisk
object
FEMA flood zone classification — zone code, risk level, in-flood-zone boolean.
​
walkability
object
OSM-based walkability — walk score (0–100), label, total amenities within 800m.
​
neighborhood
object
Census ACS — population, median household income, median home value, vacancy rate.
​
environment
object
EPA EJSCREEN — air quality percentile, superfund proximity percentile.
​
naturalHazards
object
USGS earthquake hazard, NOAA tornado risk, hail risk.
​
infrastructure
object
FCC broadband — has gigabit, has fiber, max download Mbps, provider count.
​
hudIntelligence
object
HUD opportunity zone flag, fair market rent benchmarks by bedroom count.
​
marketTrends
object
FRED housing price index — year-over-year appreciation %, trend label.
​
jobMarket
object
BLS state unemployment rate, trend, investor signal.
​
disasterHistory
object
OpenFEMA — total federal disasters, flood declarations, recent disasters list.
​
riskScore
number
Composite risk score 0–100. Lower is better.
​
riskLabel
string
Low | Moderate | High
{
  "data": {
    "location": {
      "address": "1411 8th Ave SE, Cedar Rapids, IA 52403",
      "lat": 41.9614,
      "lon": -91.6401,
      "city": "Cedar Rapids",
      "state": "Iowa",
      "stateCode": "IA",
      "zip": "52403",
      "county": "Linn"
    },
    "property": {
      "propertyType": "Single Family",
      "bedrooms": 3,
      "bathrooms": 1,
      "squareFeet": 1248,
      "yearBuilt": 1910,
      "lastSaleDate": "2020-06-15",
      "lastSalePrice": 118000,
      "rentEstimate": {
        "rentLow": 1050,
        "rentEstimate": 1168,
        "rentHigh": 1285
      },
      "valueEstimate": {
        "valueLow": 104000,
        "valueEstimate": 131000,
        "valueHigh": 158000
      }
    },
    "floodRisk": {
      "zone": "X",
      "riskLevel": "Minimal",
      "inFloodZone": false
    },
    "walkability": {
      "walkScore": 52,
      "walkLabel": "Somewhat Walkable",
      "totalAmenitiesNearby": 18
    },
    "riskScore": 15,
    "riskLabel": "Low",
    "meta": {
      "processingMs": 5850,
      "dataSources": ["OpenStreetMap", "RentCast", "FEMA", "...14 total"]
    }
  }
}