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Factline Dutch Postcode Address Lookup
x402
Factline Dutch Postcode Address Lookup is a paid API for AI agents from factline.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-12).
Returns all registered addresses (with coordinates and BAG IDs) for a given Dutch 6-character postcode from official Kadaster BAG government data.
Price / call$0.005
Success—
StatusUnknown
How this service works
API and MCP servers that let AI agents and apps check people, companies, Dutch addresses and cars against official records: sanctions and PEP lists, 10 company registers, Dutch property, rent and RDW vehicle data. From $0.001 per call.
Output
A JSON object containing the postcode, city name, total count of addresses found, the data source (Kadaster BAG via PDOK Locatieserver), and an array of address objects each with: full label, street name, house number, optional house letter, optional house number addition, latitude, longitude, and BAG object ID.
Example use cases
Delivery route planning for a postcode
“I need all the individual addresses within Dutch postcode 1071XX, with their lat/lon coordinates, so I can plan a delivery route.”
Verifying an address exists in a postcode
“Does house number 42 exist in Dutch postcode 3511GH? Can you pull up all addresses in that postcode so I can check?”
Enriching a customer database with geocoordinates
“I have a list of Dutch postcodes from our customer database — starting with 2517AS, can you get me all the official addresses and their GPS coordinates for each one?”
Technical details
Endpoint
GEThttps://factline.dev/v1/postcode/addresses?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need official, government-sourced address data for a Dutch postcode, including precise GPS coordinates and BAG object IDs. Prefer it over generic geocoding APIs when you need all addresses within a postcode area (not just a single address lookup), or when you need BAG IDs for integration with Dutch real estate or municipal systems. Best for Netherlands-specific use cases requiring authoritative Kadaster data.
Side effects
- Invalid or malformed postcode (not 6 characters or wrong format) returns an error
- Postcode does not exist in the BAG registry returns empty or zero results
- Upstream PDOK Locatieserver unavailable causes service errors
- Non-Dutch postcodes are not supported
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"city": "'s-Gravenhage",
"count": 118,
"source": "Kadaster BAG via PDOK Locatieserver",
"postcode": "2517AS",
"addresses": [
{
"lat": 52.08363811,
"lon": 4.29201429,
"label": "Laan van Meerdervoort 98, 2517AS 's-Gravenhage",
"street": "Laan van Meerdervoort",
"house_letter": null,
"house_number": 98,
"bag_object_id": "0518010000688907",
"house_number_addition": null
},
{
"lat": 52.08359668,
"lon": 4.29193161,
"label": "Laan van Meerdervoort 100, 2517AS 's-Gravenhage",
"street": "Laan van Meerdervoort",
"house_letter": null,
"house_number": 100,
"bag_object_id": "0518010001775699",
"house_number_addition": null
},
{
"lat": 52.08358839,
"lon": 4.29191123,
"label": "Laan van Meerdervoort 100A, 2517AS 's-Gravenhage",
"street": "Laan van Meerdervoort",
"house_letter": "A",
"house_number": 100,
"bag_object_id": "0518010000432205",
"house_number_addition": null
}
]
}
}Tags
x402
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