# EU House Price Index (Year-on-Year Change)

> EU House Price Index (Year-on-Year Change) is a paid API for AI agents from api.vextorium.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-15).

Returns the year-on-year percentage change in house prices (all dwellings) for European countries using official Eurostat data, either for a single country or as a full ranking.

## Facts

- Endpoint: POST https://api.vextorium.com/v1/eu-house-prices?utm_source=zero.xyz
- Price: $0.004/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/eu-house-price-index-year-on-year-change-d82db66d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_uaxhX-fjpC8dYO8zKuXBY

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 eu-house-price-index-year-on-year-change-d82db66d -d '<json body>'
```

Example prompt: What's the year-on-year house price change in Spain right now, and can you show me the last 12 quarters of history from Eurostat?

## When to prefer this

Choose this endpoint when you need official, Eurostat-sourced house price index data for European countries, particularly when you need year-on-year percentage changes rather than absolute price levels. It is ideal for macroeconomic research, real estate market monitoring, or comparing housing affordability trends across EU/EA member states. Prefer this over general web search when you need structured, consistently formatted historical time series from a trusted official source.

## Known failure modes

- Invalid or unsupported country ISO code returns an error or empty result
- quarters value outside the 1–40 range may return a validation error
- Eurostat data may lag by one or two quarters, so the most recent period might not be the current calendar quarter
- If Eurostat has not yet published data for a specific country, the response may return null values for recent periods

## How this service works

Year-on-year change of house prices (house price index, all dwellings) for any European country, or a ranking of all. Official Eurostat data.

## Output

A JSON object containing the country name and ISO code, the most recent period and its annual change percentage, a time series array of past quarters each with their annual change percentage, the Eurostat dataset source attribution, and the last updated timestamp.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "country": {
   "type": "string",
   "description": "ISO code (ES, DE, FR...), EU, EA or omit for a ranking of all countries"
  },
  "quarters": {
   "type": "integer",
   "description": "Quarters of history (1-40, default 8)"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "last": {
   "period": "2026-Q2",
   "annual_change_pct": 12.1
  },
  "name": "Spain",
  "series": [
   {
    "period": "2025-Q3",
    "annual_change_pct": 12.8
   },
   {
    "period": "2025-Q4",
    "annual_change_pct": 12.9
   }
  ],
  "source": "Eurostat (prc_hpi_q, CC BY 4.0)",
  "country": "ES",
  "updated": "2026-10-01T11:00:00+0200"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/eu-house-price-index-year-on-year-change-d82db66d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.vextorium.com](https://www.zero.xyz/host/api.vextorium.com/llms.txt)