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Getting Started with Claude in .NET

Official Anthropic C# SDK

4 min readJun 5, 2026

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Artificial Intelligence is rapidly becoming part of modern software development, and .NET developers are increasingly looking for reliable ways to integrate AI into their applications.

Until recently, developers who wanted to use Claude AI in C# mostly depended on community-maintained SDKs or direct HTTP calls. Now, Anthropic has officially introduced a dedicated C# SDK, making Claude integration much cleaner and easier for .NET applications.

In this article, we’ll explore:

  • What the new Anthropic C# SDK is
  • Why it matters
  • How to install and use it
  • Streaming responses
  • ASP.NET Core integration
  • Tool calling support
  • Benefits compared to manual HTTP integration

What is Claude?

Claude is a family of AI models developed by Anthropic, designed for:

  • Conversational AI
  • Coding assistance
  • Content generation
  • Data analysis
  • Tool usage
  • Long-context reasoning

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Yohan Malshika
Yohan Malshika

Written by Yohan Malshika

Software Engineer | .Net Developer | Technical Writer