# StableEstate Property Value Estimator

> 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

## Facts

- Endpoint: POST https://stableestate.dev/api/valuations/value
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/stableestate-dev-9a634575
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_eSMkn1lAqUeTjFSP-IARB

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability stableestate-dev-9a634575 -d '<json body>'
```

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.

## When to prefer this

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.

## Known failure modes

- 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

## 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 request

```json
{
 "address": "123 Main Street, Springfield, IL 62701",
 "daysOld": 90,
 "bedrooms": 3,
 "bathrooms": 2,
 "compCount": 10,
 "maxRadius": 1,
 "propertyType": "Single Family",
 "squareFootage": 1800
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "address": {
   "type": "string"
  },
  "daysOld": {
   "type": "integer",
   "maximum": 9007199254740991,
   "minimum": 1
  },
  "bedrooms": {
   "type": "number"
  },
  "latitude": {
   "type": "number"
  },
  "bathrooms": {
   "type": "number"
  },
  "compCount": {
   "type": "integer",
   "maximum": 25,
   "minimum": 5
  },
  "longitude": {
   "type": "number"
  },
  "maxRadius": {
   "type": "number"
  },
  "propertyType": {
   "enum": [
    "Single Family",
    "Condo",
    "Townhouse",
    "Manufactured",
    "Multi-Family",
    "Apartment",
    "Land"
   ],
   "type": "string"
  },
  "squareFootage": {
   "type": "number"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/stableestate-dev-9a634575/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from stableestate.dev](https://www.zero.xyz/host/stableestate.dev/llms.txt)