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StableEstate Property Value Estimator
x402
StableEstate Property Value Estimator is a paid API for AI agents from stableestate.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Returns an automated valuation estimate for a US property along with comparable recent sales
Price / call$0.01
Success—
StatusUnknown
How this service works
Get property value estimate with comparable sales
Output
Returns an automated property value estimate for the given US address, including the estimated market value, a confidence score or range, and a set of comparable recent property sales used to derive the estimate.
Example use cases
Example prompt
“What's the estimated value of 4521 Oak Ridge Drive, Austin TX 78745? Give me the valuation with comparable recent sales in the area.”
Technical details
Endpoint
POSThttps://stableestate.dev/api/valuations/valueWhen to prefer
Use this endpoint when you need an automated valuation model (AVM) estimate for a specific US property address, especially when you also want to see the comparable sales (comps) that back the estimate. Prefer this over the rent estimate endpoint when the user wants a sale/market value rather than rental price, and over aggregate market stats when they want a per-property figure rather than zip-code trends.
Side effects
- Property address not found or unrecognized — returns 404 or empty result
- Insufficient comparable sales data in the area — low confidence estimate or error
- Invalid or incomplete address input — returns 400 validation error
- Payment failure or insufficient USDC balance — returns 402 payment required
- Address outside supported US coverage area — returns error or no data
Input
{
"address": "123 Main Street, Springfield, IL 62701",
"daysOld": 90,
"bedrooms": 3,
"bathrooms": 2,
"compCount": 10,
"maxRadius": 1,
"propertyType": "Single Family",
"squareFootage": 1800
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| address | string | |
| daysOld | integer | |
| bedrooms | number | |
| latitude | number | |
| bathrooms | number | |
| compCount | integer | |
| longitude | number | |
| maxRadius | number | |
| propertyType | string | |
| squareFootage | number |
Output
{
"price": 232000,
"latitude": 39.750379,
"longitude": -89.538448,
"comparables": [
{
"id": "139-Willow-Rd,-Rochester,-IL-62563",
"city": "Rochester",
"price": 175000,
"state": "IL",
"county": "Sangamon",
"status": "Inactive",
"daysOld": 65,
"zipCode": "62563",
"bedrooms": 3,
"distance": 0.5167,
"latitude": 39.748864,
"bathrooms": 2,
"longitude": -89.528934,
"stateFips": "17",
"yearBuilt": 1966,
"countyFips": "167",
"listedDate": "2026-03-16T00:00:00.000Z",
"correlation": 0.9811,
"listingType": "Standard",
"removedDate": "2026-03-27T00:00:00.000Z",
"addressLine1": "139 Willow Rd",
"addressLine2": null,
"daysOnMarket": 11,
"lastSeenDate": "2026-03-26T07:08:45.335Z",
"propertyType": "Single Family",
"squareFootage": 1683,
"formattedAddress": "139 Willow Rd, Rochester, IL 62563"
},
{
"id": "35-Galahad-Dr,-Rochester,-IL-62563",
"city": "Rochester",
"price": 234900,
"state": "IL",
"county": "Sangamon",
"status": "Active",
"daysOld": 1,
"zipCode": "62563",
"bedrooms": 3,
"distance": 0.5037,
"latitude": 39.7572,
"bathrooms": 2,
"longitude": -89.541764,
"stateFips": "17",
"countyFips": "167",
"listedDate": "2026-03-18T00:00:00.000Z",
"correlation": 0.9785,
"listingType": "Standard",
"removedDate": null,
"addressLine1": "35 Galahad Dr",
"addressLine2": null,
"daysOnMarket": 73,
"lastSeenDate": "2026-05-29T06:49:55.688Z",
"propertyType": "Single Family",
"squareFootage": 1644,
"formattedAddress": "35 Galahad Dr, Rochester, IL 62563"
},
{
"id": "409-Sattley-St,-Rochester,-IL-62563",
"city": "Rochester",
"price": 212500,
"state": "IL",
"county": "Sangamon",
"status": "Inactive",
"daysOld": 89,
"zipCode": "62563",
"bedrooms": 3,
"distance": 0.2932,
"latitude": 39.746782,
"bathrooms": 1.5,
"longitude": -89.535532,
"stateFips": "17",
"yearBuilt": 1974,
"countyFips": "167",
"listedDate": "2026-02-27T00:00:00.000Z",
"correlation": 0.9635,
"listingType": "Standard",
"removedDate": "2026-03-03T00:00:00.000Z",
"addressLine1": "409 Sattley St",
"addressLine2": null,
"daysOnMarket": 4,
"lastSeenDate": "2026-03-02T05:05:44.408Z",
"propertyType": "Single Family",
"squareFootage": 1764,
"formattedAddress": "409 Sattley St, Rochester, IL 62563"
},
{
"id": "300-N-Walnut-St,-Rochester,-IL-62563",
"city": "Rochester",
"price": 329900,
"state": "IL",
"county": "Sangamon",
"status": "Active",
"daysOld": 1,
"lotSize": 30492,
"zipCode": "62563",
"bedrooms": 3,
"distance": 0.1693,
"latitude": 39.751971,
"bathrooms": 2.5,
"longitude": -89.53603,
"stateFips": "17",
"yearBuilt": 1996,
"countyFips": "167",
"listedDate": "2026-03-11T00:00:00.000Z",
"correlation": 0.9628,
"listingType": "Standard",
"removedDate": null,
"addressLine1": "300 N Walnut St",
"addressLine2": null,
"daysOnMarket": 80,
"lastSeenDate": "2026-05-29T06:49:55.689Z",
"propertyType": "Single Family",
"squareFootage": 1883,
"formattedAddress": "300 N Walnut St, Rochester, IL 62563"
},
{
"id": "501-Sattley-St,-Rochester,-IL-62563",
"city": "Rochester",
"price": 215000,
"state": "IL",
"county": "Sangamon",
"status": "Active",
"daysOld": 1,
"zipCode": "62563",
"bedrooms": 3,
"distance": 0.3386,
"latitude": 39.746033,
"bathrooms": 2,
"longitude": -89.535518,
"stateFips": "17",
"yearBuilt": 1971,
"countyFips": "167",
"listedDate": "2026-03-04T00:00:00.000Z",
"correlation": 0.9521,
"listingType": "Standard",
"removedDate": null,
"addressLine1": "501 Sattley St",
"addressLine2": null,
"daysOnMarket": 87,
"lastSeenDate": "2026-05-29T06:49:55.715Z",
"propertyType": "Single Family",
"squareFootage": 1264,
"formattedAddress": "501 Sattley St, Rochester, IL 62563"
},
{
"id": "23-Circle-Dr,-Rochester,-IL-62563",
"city": "Rochester",
"price": 314500,
"state": "IL",
"county": "Sangamon",
"status": "Inactive",
"daysOld": 11,
"zipCode": "62563",
"bedrooms": 3,
"distance": 0.4383,
"latitude": 39.756489,
"bathrooms": 2.5,
"longitude": -89.536262,
"stateFips": "17",
"yearBuilt": 1963,
"countyFips": "167",
"listedDate": "2026-05-15T00:00:00.000Z",
"correlation": 0.9194,
"listingType": "Standard",
"removedDate": "2026-05-20T00:00:00.000Z",
"addressLine1": "23 Circle Dr",
"addressLine2": null,
"daysOnMarket": 5,
"lastSeenDate": "2026-05-19T05:49:16.500Z",
"propertyType": "Single Family",
"squareFootage": 2643,
"formattedAddress": "23 Circle Dr, Rochester, IL 62563"
},
{
"id": "105-E-Mill-St,-Rochester,-IL-62563",
"city": "Rochester",
"price": 160000,
"state": "IL",
"county": "Sangamon",
"status": "Inactive",
"daysOld": 38,
"zipCode": "62563",
"bedrooms": 4,
"distance": 0.1336,
"latitude": 39.751166,
"bathrooms": 2,
"longitude": -89.536153,
"stateFips": "17",
"yearBuilt": 1960,
"countyFips": "167",
"listedDate": "2026-04-14T00:00:00.000Z",
"correlation": 0.9156,
"listingType": "Standard",
"removedDate": "2026-04-23T00:00:00.000Z",
"addressLine1": "105 E Mill St",
"addressLine2": null,
"daysOnMarket": 9,
"lastSeenDate": "2026-04-22T07:34:00.630Z",
"propertyType": "Single Family",
"squareFootage": 1795,
"formattedAddress": "105 E Mill St, Rochester, IL 62563"
},
{
"id": "41-Guinevere-Dr,-Rochester,-IL-62563",
"city": "Rochester",
"price": 235000,
"state": "IL",
"county": "Sangamon",
"status": "Active",
"daysOld": 1,
"zipCode": "62563",
"bedrooms": 4,
"distance": 0.5301,
"latitude": 39.755987,
"bathrooms": 2,
"longitude": -89.545241,
"stateFips": "17",
"yearBuilt": 1975,
"countyFips": "167",
"listedDate": "2026-05-28T00:00:00.000Z",
"correlation": 0.9054,
"listingType": "Standard",
"removedDate": null,
"addressLine1": "41 Guinevere Dr",
"addressLine2": null,
"daysOnMarket": 2,
"lastSeenDate": "2026-05-29T05:30:09.420Z",
"propertyType": "Single Family",
"squareFootage": 1757,
"formattedAddress": "41 Guinevere Dr, Rochester, IL 62563"
},
{
"id": "328-Parkview-Dr,-Rochester,-IL-62563",
"city": "Rochester",
"price": 219000,
"state": "IL",
"county": "Sangamon",
"status": "Active",
"daysOld": 1,
"zipCode": "62563",
"bedrooms": 4,
"distance": 0.4689,
"latitude": 39.752839,
"bathrooms": 2,
"longitude": -89.530232,
"stateFips": "17",
"yearBuilt": 1964,
"countyFips": "167",
"listedDate": "2026-04-01T00:00:00.000Z",
"correlation": 0.8963,
"listingType": "Standard",
"removedDate": null,
"addressLine1": "328 Parkview Dr",
"addressLine2": null,
"daysOnMarket": 59,
"lastSeenDate": "2026-05-29T06:49:55.666Z",
"propertyType": "Single Family",
"squareFootage": 1625,
"formattedAddress": "328 Parkview Dr, Rochester, IL 62563"
},
{
"id": "10-Lancelot-Dr,-Rochester,-IL-62563",
"city": "Rochester",
"price": 225000,
"state": "IL",
"county": "Sangamon",
"status": "Inactive",
"daysOld": 59,
"zipCode": "62563",
"bedrooms": 4,
"distance": 0.4492,
"latitude": 39.756174,
"bathrooms": 2,
"longitude": -89.542259,
"stateFips": "17",
"yearBuilt": 1983,
"countyFips": "167",
"listedDate": "2026-03-27T00:00:00.000Z",
"correlation": 0.895,
"listingType": "Standard",
"removedDate": "2026-04-02T00:00:00.000Z",
"addressLine1": "10 Lancelot Dr",
"addressLine2": null,
"daysOnMarket": 6,
"lastSeenDate": "2026-04-01T05:51:25.577Z",
"propertyType": "Single Family",
"squareFootage": 2018,
"formattedAddress": "10 Lancelot Dr, Rochester, IL 62563"
}
],
"priceRangeLow": 184000,
"priceRangeHigh": 280000,
"subjectProperty": {
"id": "123-W-Main-St,-Rochester,-IL-62563",
"city": "Rochester",
"state": "IL",
"zipCode": "62563",
"bedrooms": 3,
"latitude": 39.750379,
"bathrooms": 2,
"longitude": -89.538448,
"stateFips": "17",
"addressLine1": "123 W Main St",
"addressLine2": null,
"propertyType": "Single Family",
"squareFootage": 1800,
"formattedAddress": "123 W Main St, Rochester, IL 62563"
}
}Tags
x402
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