# Dutch Address Dossier (BAG + AHN + CBS) by Postcode

> Dutch Address Dossier (BAG + AHN + CBS) by Postcode is a paid API for AI agents from api.agenticweb.nl, paid per call via x402, $0.025/call, status unknown (last checked 2026-09-14).

Returns a comprehensive Dutch address dossier combining BAG building data, AHN elevation above NAP, and CBS municipality key figures for a given postcode and house number.

## Facts

- Endpoint: POST https://api.agenticweb.nl/api/v1/nl/dossier
- Price: $0.025/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/dutch-address-dossier-bag-ahn-cbs-by-postcode-9ba6e349
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_aN_dIJLD81i5FrxWkl3VY

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 dutch-address-dossier-bag-ahn-cbs-by-postcode-9ba6e349 -d '<json body>'
```

Example prompt: Can you pull up the full address dossier for postcode 1017BN, house number 1 in the Netherlands — I need the building's construction year, floor area, use function, its ground height above NAP, and the key municipality figures like population and density all in one go?

## When to prefer this

Choose this endpoint when you need a single-call aggregation of Dutch address, building, elevation, and municipality data rather than making separate calls to BAG, AHN, and CBS endpoints. Ideal for real estate due diligence, property enrichment pipelines, flood/risk assessments, or any workflow requiring combined spatial and demographic context for a Dutch address. Prefer sibling endpoints for cases where only one data type is needed (e.g. elevation-only or CBS-only).

## Known failure modes

- Invalid or non-existent postcode/house number combination returns an error or empty result
- House number addition mismatch may return wrong or no building
- AHN data unavailable for certain rural or newly developed areas
- CBS figures may be lagged by one statistical year
- Payment failure or insufficient USDC balance blocks the call
- Malformed JSON request body returns a 400 error

## How this service works

Dutch address dossier by postcode + house number: the address, its BAG building (bouwjaar, floor area, use function), its AHN height above NAP, and CBS key figures for its gemeente — in one call. Send the parameters in a JSON request body via POST. Payment constitutes acceptance of the terms at https://agenticweb.nl/terms.

## Output

A JSON object containing: the resolved street address, BAG building attributes (construction year, gross floor area, use function), AHN elevation data (ground height above NAP, surface height, and derived metrics), and CBS key figures for the gemeente (population, number of households, address density). All data is returned in a single response.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "postcode": {
   "type": "string",
   "description": "Dutch postcode, e.g. 1011AC."
  },
  "huisnummer": {
   "type": "number",
   "description": "House number."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/dutch-address-dossier-bag-ahn-cbs-by-postcode-9ba6e349/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.agenticweb.nl](https://www.zero.xyz/host/api.agenticweb.nl/llms.txt)