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To use the PostNL app you need an API-key.
We recommend that you first test the app with a sandbox API-key.
You can request a PostNL Test (sandbox) API-Key via are the required APIs:


Once you are logged in click on 'Jouw naam' and then on 'Mijn account'.

Then you will be taken to the next page and click on 'API beheren'.

Then you click on 'nieuwe sleutel aanmaken' and in the pop-up you click on 'Testsleutel aanmaken' and then you get the API-key
With this key you can make a few test labels, to make sure everything works.
When you have finished testing, you can get a Production API via the PostNL CIT Service Desk.
The telephone number of the CIT Service Desk is: +31 (0)88 225 56 51.

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