France property & address · x402
dvf-price-m2
French property price per m2 around an address from official DVF sales records (DGFiP / Etalab, last 3 years): median, p25/p75, count for apartments and houses within an auto-expanding radius, geocoded via Base Adresse Nationale. Not available for Alsace-Moselle and Mayotte.
0.01 USDC / call · {atomic} atomic · 10000 atomic
Endpoint
GET|POST https://x402-gateway.forge-x402.workers.dev/api/dvf-price-m2
MCP tool:: dvf_price_m2
Parameters
| Name | Required | Type | Description |
|---|---|---|---|
address | Required | string | French street address |
propertyType | Optional | string | optional: Appartement or Maison |
surface | Optional | number | optional surface in m2 for an estimate |
Example request (unpaid — expect 402)
curl -sS -D - "https://x402-gateway.forge-x402.workers.dev/api/dvf-price-m2?address=10+rue+de+la+Paix%2C+Paris"
Example 402 challenge
The same object is also sent as a base64 PAYMENT-REQUIRED header. Amounts are atomic USDC units (6 decimals).
{
"x402Version": 2,
"error": "Payment required",
"resource": {
"url": "https://x402-gateway.forge-x402.workers.dev/api/dvf-price-m2",
"description": "French property price per m2 around an address from official DVF sales records (DGFiP / Etalab, last 3 years): median, p25/p75, count for apartments and houses within an auto-expanding radius, geocoded via Base Adresse Nationale. Not available for Alsace-Moselle and Mayotte.",
"mimeType": "application/json"
},
"accepts": [
{
"scheme": "exact",
"network": "eip155:8453",
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0x7B8bf45ac6AcbA6D4CFB626b57D3f5fF3C9C89F7",
"maxTimeoutSeconds": 120,
"extra": {
"name": "USD Coin",
"version": "2"
}
}
]
}Retry with payment
curl -sS "https://x402-gateway.forge-x402.workers.dev/api/dvf-price-m2?address=10+rue+de+la+Paix%2C+Paris" \ -H "PAYMENT-SIGNATURE: $PAYMENT"
Example response
{
"found": true,
"geocodedLabel": "10 Rue de la Paix 75002 Paris",
"apartmentMedianPricePerM2": 12857,
"apartmentSales": 381,
"houseMedianPricePerM2": 17846,
"houseSales": 12
}