# World House Prices (BIS Data)

> World House Prices (BIS Data) 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 nominal and real (inflation-adjusted) year-on-year residential property price changes for ~60 economies, either as a global ranking or for a single country, sourced from the Bank for International Settlements.

## Facts

- Endpoint: POST https://api.vextorium.com/v1/world-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/world-house-prices-bis-data-bb8c2102
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_OmzTvpau2KCfmbm4LHNrw

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 world-house-prices-bis-data-bb8c2102 -d '<json body>'
```

Example prompt: Can you show me the latest global ranking of residential property price changes — both nominal and real — across all available countries using BIS data?

## When to prefer this

Choose this endpoint when you need authoritative, cross-country residential property price data sourced from the Bank for International Settlements, especially for macroeconomic analysis, country comparisons, or global rankings. It is ideal when both nominal and real (inflation-adjusted) figures are needed simultaneously. Prefer it over scraped or unofficial sources when BIS data provenance is important. Not suitable for sub-national, city-level, or historical time-series data beyond the latest quarter.

## Known failure modes

- Invalid or unsupported ISO country code returns empty or error response
- Data may lag by one or more quarters as BIS updates are not real-time
- Some smaller economies may have null values for real or nominal percent change
- Omitting the country field when intending a single-country lookup returns the full ranking instead
- Euro area requires the special code XM rather than a standard country code

## How this service works

Residential property prices in about 60 economies: nominal and real (inflation-adjusted) year-on-year change of the latest quarter, as a ranking or for one country. Bank for International Settlements data.

## Output

A JSON object containing the data source attribution (Bank for International Settlements WS_SPP dataset), the total number of economies covered, and an array of country entries each with the country name, ISO 2-letter code, the most recent available quarter, real annual percent change, and nominal annual percent change.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "country": {
   "type": "string",
   "description": "ISO 2-letter code of a European country (ES, DE, FR, PT, NL...); omit for ranking"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "source": "Bank for International Settlements (WS_SPP)",
  "ranking": [
   {
    "name": "Turkey",
    "country": "TR",
    "quarter": "2026-Q2",
    "real_annual_pct": -5.46,
    "nominal_annual_pct": 25.14
   },
   {
    "name": "PT",
    "country": "PT",
    "quarter": "2026-Q1",
    "real_annual_pct": 15.2,
    "nominal_annual_pct": 17.78
   }
  ],
  "countries": 61
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/world-house-prices-bis-data-bb8c2102/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)