# Xynaptic Property Price

> Xynaptic Property Price is a paid API for AI agents from api.xynaptic.io, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-02).

Returns official median price per square meter for a French commune and property type, computed from real DVF transactions, including median, mean, min/max, and transaction volume.

## Facts

- Endpoint: GET https://api.xynaptic.io/v1/property-price?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/xynaptic-property-price-7b7c9530
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_dk2PVBNhDm0GIbAkInScW

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 xynaptic-property-price-7b7c9530
```

Example prompt: What's the median price per square meter for apartments (Appartement) in Paris based on official DVF transaction data?

## When to prefer this

Choose this endpoint when you need official, transaction-backed property price statistics for a specific French commune and property type. It is grounded in DVF (real government transaction data), making it more reliable than listing-based estimates. Prefer it over scraping real estate portals when you need defensible, reproducible median prices rather than asking prices.

## Known failure modes

- Unknown or misspelled commune name returns an error or empty result
- Invalid or unsupported property type (e.g. non-standard type string) may return no data
- Communes with very few transactions may have unreliable or unavailable statistics
- Missing required query parameters (city or type) returns a validation error
- Network timeout or upstream DVF data unavailability

## How this service works

Xynaptic Property Price — official median price per sqm for a French commune and property type, computed from real transactions (DVF): median, mean, min/max, volume. GET ?city=Paris&type=Appartement. Robust median.

## Output

Returns a structured set of property price statistics for the requested French commune and property type: median price per sqm (robust median from real DVF transactions), mean price per sqm, minimum and maximum observed prices, and the number of transactions used to compute these figures.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "additionalProperties": {
      "type": "string"
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/xynaptic-property-price-7b7c9530/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.xynaptic.io](https://www.zero.xyz/host/api.xynaptic.io/llms.txt)