# Netherlands House Price Index API

> Netherlands 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 2026-10-19).

Returns the CBS (Statistics Netherlands) house price index for the Netherlands, including the latest month's index value and 12-month percentage change.

## Facts

- Endpoint: GET https://rent-check-production.up.railway.app/v1/nl-house-prices?utm_source=zero.xyz
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/netherlands-house-price-index-api-8f7b7538
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Qs3V1q0JqHopcZKpwBgZ8

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 netherlands-house-price-index-api-8f7b7538
```

Example prompt: What's the latest house price index for the Netherlands according to CBS, and how much have prices changed over the past 12 months?

## When to prefer this

Choose this endpoint when you need authoritative, official Dutch house price index data sourced directly from CBS (Statistics Netherlands). It is ideal for real estate benchmarking, investment analysis, or macroeconomic research specifically focused on the Netherlands. Prefer it over scraped or third-party aggregators when data provenance and attribution matter. Note: despite the service name mentioning Irish rent, this specific endpoint (/v1/nl-house-prices) returns Netherlands CBS data only.

## Known failure modes

- Missing or invalid query parameters may return an empty or error response
- Data freshness depends on CBS publication schedule — index may lag by 1-2 months
- Service hosted on Railway; potential downtime or cold-start latency
- Payment required ($0.03 USDC via x402) — unpaid requests will be rejected with 402
- Schema mismatch if the CBS source table structure changes

## 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

A JSON object containing: country code ('NL'), a data attribution string citing CBS table 85773NED under CC BY 4.0, the current house price index value (e.g. 156.6), the latest month covered (e.g. '2026-08'), and the 12-month percentage change (e.g. 5.1%).

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "country": "NL",
  "attribution": "Source: CBS (Statistics Netherlands), table 85773NED, CC BY 4.0",
  "price_index": 156.6,
  "latest_month": "2026-08",
  "change_12m_pct": 5.1
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/netherlands-house-price-index-api-8f7b7538/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)