Important Notice

The Mobile Connect SDKs are no longer supported. The SDK documentation and links to the code will continue to be available on the Mobile Connect Developer Portal but the SDKs documentation and code will no longer be updated , and there will be no further bug fixes. Also, we will be unable to provide support for issues with the SDKs and their integration into applications via the Mobile Connect Service Desk.


The Mobile Connect Server Side SDK for .NET provides everything you need to implement Mobile Connect in server-side applications, as well as running natively in apps on both Windows. Take a look at the Getting Started Guide for information on configuring your development environment before putting together some basic applications.

Server Side SDK

All of the steps you need to follow to set up your .NET development environment are detailed in a Getting Started Guide. The guide also includes sample code and steps to integrate your application with Mobile Connect

Minimum Requirements

Note: May not work on older versions


Recommended Setup

Server Side SDK Releases



SDK Size



17th September 2019

Backward Compatibility

v3.0.0 or higher

API Reference Documentation

Download the Server Side SDK

Revision History

v3.4.0 17th September 2019

Add DI 3.0 support
Add login_hint_token feature
Add client credentials transfer using the token request body
Add issuer handling in the discovery response

v3.3.1 02th August 2019

Update configuration files with new application credentials

v3.3.0 20th February 2019

Replace token response to client side with HTML page to improve security

Minor fixes

v3.2.1 11th January 2019

Upgrade version auto-detection mechanism for specific Indian scopes support

v3.2.0 4th January 2019

Update handling of multiple versions of Mobile Connect, e.g. MC v1.1, 2.0, 2.3

v3.1.0 13th November 2018

• Add DI 2.3 version support and
• Add 'Without Discovery' mode support

v3.0.0 12th September 2018

Initial release