• Microsoft .NET version 4.5.2+ (4.7 recommended)
• Free Developer Sandbox

• .NET Standard 2.0. See .NET Standard Selector for details on versioning for the individual components in .NET Standard
• .NET Core 2.0
• Microsoft .NET version 4.5.2+ We no longer support version 4.5.1
• TLS 1.2

This open-source SDK is provided for cases where you would like to make additional changes that the SDK does not provide out-of-the-box. If you simply want to use the SDK with any of the examples shown in the Developer Center, follow the installation instructions below.

1. Create a new C# project, or open an existing one.
2. Click Tools -> NuGet Package Manager -> Manage NuGet Packages for Solution.
3. Search for DocuSign.
4. Select DocuSign.eSign.dll.
5. Click the check box next to your project name.
6. Click Install.

1. Open or create a new C# project.
2. Open the Package Manager Console by either:
3. Clicking Package Manager Console along the bottom of Visual Studio
4. Clicking Tools -> NuGet Package Manager -> Package Manager Console
5. In the Package Manager Console, type: Install-Package DocuSign.eSign.dll

This client has the following external dependencies:

• Microsoft.CSharp v4.5.0
• Microsoft.IdentityModel.Protocols v5.4.0
• Newtonsoft.Json 11.0.2
• Portable.BouncyCastle v1.8.2
• RestSharp v106.3.1
• System.ComponentModel.Annotations v4.5.0
• System.IdentityModel.tokens.Jwt v5.4.0

• BouncyCastle v1.8.1
• Microsoft.CSharp v4.5.0
• Microsoft.IdentityModel.Protocols v5.4.0
• Newtonsoft.Json 11.0.2
• RestSharp v106.3.1
• System.ComponentModel.Annotations v4.5.0
• System.IdentityModel.tokens.Jwt v5.4.0

DocuSign provides a sample application code referred to as a Launcher. The Launcher contains a set of 31 common use cases and associated source files. These examples use either DocuSign's Authorization Code Grant or JSON Web Tokens (JWT) flows.

If your goal is to create a proof-of-concept application, DocuSign provides a set of Quick Start examples. The Quick Startexamples are meant to be used with DocuSign's OAuth Token Generator, which will allow you to generate tokens for the Demo/Sandbox environment only. These tokens last for eight hours and will enable you to build your proof-of-concept application without the need to fully implement an OAuth solution.

For details regarding which type of OAuth grant will work best for your DocuSign integration, see the REST API Authentication Overview guide located on the DocuSign Developer Center.

For security purposes, DocuSign recommends using the Authorization Code Grant flow.

Log issues against this client through GitHub. We also have an active developer community on Stack Overflow.

The DocuSign C# Client is licensed under the MIT License.

• DocuSign Developer Center
• DocuSign API on Twitter
• DocuSign For Developers on LinkedIn
• DocuSign For Developers on YouTube