# German House Price Index API

> German House Price Index API is a paid API for AI agents from rent-check-production.up.railway.app, paid per call via x402, $0.03/call, status unknown (last checked 2026-10-20).

Returns the official German residential property price index (Destatis) including quarterly change percentages for Germany

## Facts

- Endpoint: GET https://rent-check-production.up.railway.app/v1/de-house-prices?utm_source=zero.xyz
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/german-house-price-index-api-49a2bbaf
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_3pBitjBGkbUTm0OBbDxbe

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 german-house-price-index-api-49a2bbaf
```

Example prompt: What is the current official house price index for Germany and how much has it changed over the last quarter and year?

## When to prefer this

Use this endpoint when you need official, government-sourced German residential property price index data from Destatis with proper attribution, particularly for quarterly trend analysis, investment research, or regulatory compliance requiring citable statistics. Prefer this over scraped or estimated sources when authoritative attribution matters.

## Known failure modes

- No properties parameter match — returns empty or default index object
- Destatis source data not yet updated for latest quarter — stale quarter label returned
- Network timeout from Railway deployment — HTTP 5xx error
- Invalid query parameters — returns 400 bad request
- Data temporarily unavailable from upstream Destatis Genesis-Online — service may return error or cached data

## How this service works

What is the average rent in an Irish area? What is the rent increase limit? What are house prices in a county? Pay-per-call Irish rent and property price data for agents and developers. x402 and MPP, MCP server, no API keys.

## Output

Returns a JSON object containing the German house price index value (e.g. 100.6), 4-quarter and 12-quarter percentage changes, the latest quarter label (e.g. 2026Q2), country code (DE), and full Destatis data attribution strings for both raw and derived data.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "index": {
   "all": {
    "index": 100.6,
    "change_4q_pct": 0.6,
    "change_12q_pct": 2,
    "latest_quarter": "2026Q2"
   }
  },
  "country": "DE",
  "latest_quarter": "2026Q2",
  "attribution_raw": "Data source: Statistisches Bundesamt (Destatis), Genesis-Online, 2026-10-15; Data licence Germany - attribution - version 2.0 (dl-de/by-2-0)",
  "attribution_derived": "Own calculations (changes) based on data of the Statistisches Bundesamt (Destatis); modified"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/german-house-price-index-api-49a2bbaf/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from rent-check-production.up.railway.app](https://www.zero.xyz/host/rent-check-production.up.railway.app/llms.txt)