TimeWarp.Nuru.McpHost 4.0.0-beta.4

Prefix Reserved
.NET 10.0 This package targets .NET 10.0. The package is compatible with this framework or higher.
This is a prerelease version of TimeWarp.Nuru.McpHost. 
dotnet add package TimeWarp.Nuru.McpHost --version 4.0.0-beta.4
                    


                    

                
NuGet\Install-Package TimeWarp.Nuru.McpHost -Version 4.0.0-beta.4
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="TimeWarp.Nuru.McpHost" Version="4.0.0-beta.4" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="TimeWarp.Nuru.McpHost" Version="4.0.0-beta.4" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="TimeWarp.Nuru.McpHost" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add TimeWarp.Nuru.McpHost --version 4.0.0-beta.4
                    


                    

                
#r "nuget: TimeWarp.Nuru.McpHost, 4.0.0-beta.4"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package TimeWarp.Nuru.McpHost@4.0.0-beta.4
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=TimeWarp.Nuru.McpHost&version=4.0.0-beta.4&prerelease
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=TimeWarp.Nuru.McpHost&version=4.0.0-beta.4&prerelease
                    


                            Install as a Cake Tool

TimeWarp.Nuru.McpHost

Serve a TimeWarp.Nuru app's routes as MCP tools without writing any per-route code. Each route becomes one tool. The tool's input schema is built from the same catalog --capabilities prints, and tools/call runs through the generated binder that --json-args uses. MCP and the CLI therefore share tool names and arguments.

using TimeWarp.Nuru;

NuruApp app = NuruApp.CreateBuilder()
  .DiscoverEndpoints()
  .AddMcpRoute(instructions: "Use add and multiply for arithmetic.")
  .Build();

return await app.RunAsync(args);

myapp mcp   # MCP server over stdio

To serve the same tools from an ASP.NET Core app over streamable HTTP, use the ModelContextProtocol.AspNetCore package:

builder.Services.AddMcpServer()
  .WithHttpTransport()
  .WithNuruTools(nuruApp);
app.MapMcp();

An object or array member publishes the real JSON Schema of its type, so a model sends the object itself. Annotations come from the endpoint kind plus [Destructive], [OpenWorld] and [DisplayName] on the endpoint class, and NuruMcpHostOptions.ToolAnnotations overrides them per tool. A default is in both the default keyword and the description.

Tool calls run concurrently, each with its own output, exit code and service scope; notifications/cancelled cancels only that call. Mark a handler that is not thread-safe [Exclusive], or set NuruMcpHostOptions.ExclusiveCalls.

See MCP hosting.

Not to be confused with TimeWarp.Nuru.Mcp, the frozen dev-assist server, or TimeWarp.Nuru.McpBridge (task 507), which goes the other way and maps MCP tool methods to Nuru routes.

Product Compatible and additional computed target framework versions.
.NET net10.0 is compatible.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
4.0.0-beta.4 0 10/20/2026
4.0.0-beta.3 37 10/19/2026
4.0.0-beta.2 49 10/19/2026