Find undervalued French properties in an area: listings whose asking price sits below the
Find undervalued French properties in an area: listings whose asking price sits below the median price per square metre recorded in actual DVF sales nearby, returned with the gap expressed in percent. Crosses live listings against real transaction data so the comparison is against what sold, not what was asked.
50000 (raw units)
price
1
calls / 30d
1
unique payers
2026-09-17
updated
Provider
api.x-402.online · discovered, not yet claimed by its owner
Payment (x402 accepts[])
[
{
"scheme": "exact",
"network": "eip155:8453",
"payTo": "0x2c871C2b8876dc35e9E19646FDa5ABF1cd27735F",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "50000",
"maxTimeoutSeconds": 300
},
{
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "3tvSUk2R16rrL4eo2diYpMUsBH1wa3tafqJE44x3bVgs",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"amount": "50000",
"maxTimeoutSeconds": 300
}
]Output schema
{
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"city": "Bordeaux",
"cp": "33000"
},
"type": "http"
},
"output": {
"example": {
"candidates": [
{
"gapPct": -31,
"price": 243000,
"pricePerM2": 3307,
"surface": 70,
"type": "Appartement",
"url": "https://..."
}
],
"candidatesCount": 6,
"soldMedianPerM2": 4778
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
}Use it
curl
curl "https://api.x-402.online/v1/fr/biens-sous-cotes" # -> 402 Payment Required, accepts[] lists how to pay # retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid
JavaScript
const res = await fetch("https://api.x-402.online/v1/fr/biens-sous-cotes");
if (res.status === 402) {
const { accepts } = await res.json();
// pay one of accepts[] via an x402 client, then retry with the payment header
}Python
import httpx
res = httpx.get("https://api.x-402.online/v1/fr/biens-sous-cotes")
if res.status_code == 402:
accepts = res.json()["accepts"]
# pay one of accepts[] via an x402 client, then retry with the payment headerMachine-readable
Everything on this page is also available as clean JSON at /resources/11930.json, and this resource appears in /discovery/resources and /discovery/search.