Use test environment, aka sandbox

How can I test the service?

Are you looking for a way to test our service?

Creating a Sandbox API Key

In this article you will find information about the test environment.
For information on the test credit, see the article Test credit.


To test the API, use a sandbox, which is a test environment. The possibility to create a test environment can be found in our webapp under the menu item Developer.

Under the item API Keys click on the green plus sign to create a new API Key.

helpdesk_sandbox_entwickler_en


In the following window, select Sandbox as the environment.
Save the key.

helpdesk_sandbox_anlegen_en

Important Notes

You can now use your new sandbox API key for testing. ​ ​ It is important to note that you have to change to an active API Key when you actually want to start using the service.
All requests with a Sandbox API Key will not send messages or use other products live. It is only for testing purposes.


Do you have any questions? Our support team will be happy to help you.


Last updated: March 25, 2026

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