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Halowerk Residential Property Price Index
x402
Halowerk Residential Property Price Index is a paid API for AI agents from stat.halowerk.com, paid per call via x402, $0.006/call, status unknown (last checked 2026-09-13).
Returns a country's residential property price index in nominal and real (inflation-adjusted) terms, with 1-, 5-, and 10-year growth rates for each, plus the explicit nominal-vs-real gap.
Price / call$0.006
Success—
StatusUnknown
How this service works
Returns the residential property price index for a country in both nominal and inflation-adjusted form, with growth rates over one, five and ten years for each and the difference between them stated as its own field. That difference is the substance: a five percent nominal rise against six percent inflation is a real decline, and a service reporting only the nominal series turns every inflationary period into a housing boom.
Output
Returns the residential property price index for the requested country in both nominal and inflation-adjusted form. Includes growth rates over 1, 5, and 10 years for each series, and an explicit field stating the difference between the nominal and real growth rates at each horizon — making it clear whether apparent price gains are genuine or inflation-driven.
Example use cases
Detect inflation-driven housing illusion
“Is France's housing boom real? Pull the nominal and inflation-adjusted property price index for France and show me the 5-year and 10-year growth rates for both, plus the gap — I want to know how much of the price rise is just inflation.”
Cross-country real estate investment comparison
“I'm weighing property investments in Spain versus Portugal — can you get the residential property price index for both countries, with nominal and real growth rates over 1, 5, and 10 years, so I can see where values are actually rising in real terms?”
Macro research on housing affordability trends
“For my report on housing affordability, pull the property price index for Japan showing nominal and inflation-adjusted figures and all three growth periods, and highlight the difference between nominal and real growth so I can explain whether prices have truly risen.”
Technical details
Endpoint
POSThttps://stat.halowerk.com/v1/property-cycleWhen to prefer
Choose this endpoint when you need to distinguish real housing market growth from nominal growth driven by general inflation, particularly for country-level analysis. It is superior to endpoints that report only nominal property price indices because it surfaces the inflation-adjusted series and the explicit gap as a first-class output. Prefer it for macroeconomic research, investment screening, housing affordability analysis, or any workflow where conflating nominal gains with real gains would lead to wrong conclusions.
Side effects
- Country code not recognized or not covered — returns an error indicating no data is available for that country
- Data not available for the full 10-year horizon — partial results may be returned or an error flagged for longer-period rates
- Invalid request body or missing required fields — HTTP 400 with a validation message
- Service unavailable or upstream data source timeout — HTTP 5xx error
- Payment not included or insufficient — HTTP 402 indicating x402 payment required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| country | string | |
| quarters | integer |
Tags
x402
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