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You can choose between many of the most used programming languagelanguages. See: See Samples and Wrappers.

Download the demo client


titleFor Ruby developers

Ruby developers? You can stop here and head over to the MailUp RubyGem, which is based on the MailUp REST API and handles all the resources described here.

Get ready in 15 minutes

From sample code to your



You don't need to be neither an OAuth2 guru nor a MailUp expert to have your first application up and running in a very short time if you use our MailUp Demo Client

MailUp Demo Client is a working example that properly authenticates on the MailUp platform and allows easy access to MailUp resources. You'll probably need less than 15 minutes to have it up and running and use it to learn how to access to MailUp resources.

You can then build your own application by simply extending the sample code.



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After successful authentication, a token is displayed on the client interfaceImage Removed

You can then run some of predefined example calls, or build your own calls and test them using the "Call Method" button.

In the picture that follow follows you can see how to create a Group in MailUp List 1 (see the MailUp Glossary for details on Lists and Groups).

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  • Authentication: the "Confirm" button is large but you have to click exactly over the word "Confirm" to proceed
  • Custom method call: inserting a path and pressing "Enter" does not work for applying your request, use the "Call Method" button instead.
  • In case of errors, MailUp Demo Client displays only the error code, not the detailed error description
  • More Samples: click here  to learn more about how to how to access to MailUp resources and take advantage of the filtering and paging features