Threema Message API

As a developer, you will find here all necessary information and source code to successfully integrate Threema Gateway in your environment. Threema does not provide a graphical user interface for Threema Gateway. The Message API is an interface that can be used from within customer-specific software to send and receive messages via Threema Gateway.

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You can find documentation for the Threema Gateway SDK for Rust on


This is a community SDK. Please go to to report bugs and request features.


The Threema Gateway SDK for Rust is dual licensed under the MIT and Apache-2.0 licenses.