.Net: Sample using OAuth to access a protected MCP server #12680
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Pull Request Overview
This PR adds a new .NET sample demonstrating how to authenticate via OAuth 2.0 to access a protected Model Context Protocol (MCP) server and invoke its tools through Semantic Kernel.
- Introduces a browser-based authorization code flow and SSE transport for MCP.
- Includes detailed README for prerequisites, configuration, and running steps.
- Registers the new sample in the solution and configures its project dependencies.
Reviewed Changes
Copilot reviewed 4 out of 4 changed files in this pull request and generated 1 comment.
| File | Description |
|---|---|
| dotnet/samples/Demos/ModelContextProtocolPluginAuth/README.md | Added comprehensive setup, OAuth flow explanation, and usage guide. |
| dotnet/samples/Demos/ModelContextProtocolPluginAuth/Program.cs | Implemented OAuth 2.0 authorization code flow and MCP tool invocation. |
| dotnet/samples/Demos/ModelContextProtocolPluginAuth/ModelContextProtocolPluginAuth.csproj | Configured project target framework and package references. |
| dotnet/SK-dotnet.slnx | Added the new sample project to the solution. |
Comments suppressed due to low confidence (3)
dotnet/samples/Demos/ModelContextProtocolPluginAuth/README.md:39
- This line appears to be stray or incomplete; remove it or replace with the intended content.
"..."
dotnet/samples/Demos/ModelContextProtocolPluginAuth/README.md:20
- The project targets .NET 8.0 in the csproj but README lists .NET 9.0; update one of them to ensure consistency.
- .NET 9.0 or later
dotnet/samples/Demos/ModelContextProtocolPluginAuth/Program.cs:47
- [nitpick] Casing inconsistency: consider using 'ProtectedMCPClient' to match the 'MCP' acronym and other sample naming conventions.
ClientName = "ProtectedMcpClient",
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…12680) ### Motivation and Context <!-- Thank you for your contribution to the semantic-kernel repo! Please help reviewers and future users, providing the following information: 1. Why is this change required? 2. What problem does it solve? 3. What scenario does it contribute to? 4. If it fixes an open issue, please link to the issue here. --> ### Description <!-- Describe your changes, the overall approach, the underlying design. These notes will help understanding how your code works. Thanks! --> ### Contribution Checklist <!-- Before submitting this PR, please make sure: --> - [ ] The code builds clean without any errors or warnings - [ ] The PR follows the [SK Contribution Guidelines](https://github.com/microsoft/semantic-kernel/blob/main/CONTRIBUTING.md) and the [pre-submission formatting script](https://github.com/microsoft/semantic-kernel/blob/main/CONTRIBUTING.md#development-scripts) raises no violations - [ ] All unit tests pass, and I have added new tests where possible - [ ] I didn't break anyone 😄
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Motivation and Context
Description
Contribution Checklist