Postcode.nl API REST client example

Authentication API url:

API key:

API secret:


Select service:




Example address data:

Existing postcode, with no housenumber addition

Postcode: `2012ES`
Housenumber: `30`
Housenumber addition: ``

Existing postcode, with only one possible housenumber addition

Postcode: `2011DW`
Housenumber: `8`
Housenumber addition: `RD`

Existing postcode, with multiple housenumber additions, incorrect addition

Postcode: `2011DW`
Housenumber: `9`
Housenumber addition: `ZZZ`

Non-existing postcode

Postcode: `1234ZZ`
Housenumber: `1234`
Housenumber addition: ``