WeaveLLM.Extensions.DependencyInjection 0.2.1-alpha

This is a prerelease version of WeaveLLM.Extensions.DependencyInjection.
dotnet add package WeaveLLM.Extensions.DependencyInjection --version 0.2.1-alpha
                    
NuGet\Install-Package WeaveLLM.Extensions.DependencyInjection -Version 0.2.1-alpha
                    
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="WeaveLLM.Extensions.DependencyInjection" Version="0.2.1-alpha" />
                    
For projects that support PackageReference, copy this XML node into the project file to reference the package.
<PackageVersion Include="WeaveLLM.Extensions.DependencyInjection" Version="0.2.1-alpha" />
                    
Directory.Packages.props
<PackageReference Include="WeaveLLM.Extensions.DependencyInjection" />
                    
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 WeaveLLM.Extensions.DependencyInjection --version 0.2.1-alpha
                    
#r "nuget: WeaveLLM.Extensions.DependencyInjection, 0.2.1-alpha"
                    
#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 WeaveLLM.Extensions.DependencyInjection@0.2.1-alpha
                    
#: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=WeaveLLM.Extensions.DependencyInjection&version=0.2.1-alpha&prerelease
                    
Install as a Cake Addin
#tool nuget:?package=WeaveLLM.Extensions.DependencyInjection&version=0.2.1-alpha&prerelease
                    
Install as a Cake Tool

LangChain is slow and leaky — WeaveLLM is a native .NET 8 AI orchestration framework that treats errors as values, wires into ASP.NET Core DI out of the box, and composes like middleware.

Quick Example

var builder = WebApplication.CreateBuilder(args);

builder.Services
    .AddWeaveLLM()
    .AddOpenAI(apiKey: builder.Configuration["OpenAI:ApiKey"]!, modelId: "gpt-4o");

var app = builder.Build();

app.MapPost("/chat", async (string message, IChatModel model) =>
{
    var result = await model.ChatAsync([Message.User(message)]);
    return result.IsSuccess ? Results.Ok(result.Value!.Content) : Results.Problem(result.Error!.Message);
});

app.Run();

Why WeaveLLM

  • Railway-oriented results — every call returns ChainResult<T>; no swallowed exceptions, composable error paths
  • ASP.NET-style middleware pipeline — stack retry, caching, rate limiting, PII scrubbing, and cost tracking as layers
  • Single fluent registrationAddWeaveLLM() wires providers, memory, agents, health checks, and telemetry in one call
  • Native .NET 8 — built on IServiceCollection, IAsyncEnumerable, and the BCL; no Python bridges, no wrapper tax
  • OpenTelemetry first-class — traces, token cost metrics, and PII scrubbing ship in WeaveLLM.Observability

Supported Providers

Provider Package Notes
OpenAI WeaveLLM.Providers GPT-4o, GPT-4-turbo, GPT-3.5
Anthropic WeaveLLM.Providers Claude 3.x / 4.x series
Ollama WeaveLLM.Providers Local models via Ollama REST API
HuggingFace WeaveLLM.Providers Inference API (text-generation)

Installation

dotnet add package WeaveLLM.Core
dotnet add package WeaveLLM.Providers
dotnet add package WeaveLLM.Memory
dotnet add package WeaveLLM.Observability
dotnet add package WeaveLLM.Extensions.DependencyInjection

Testing

Use WeaveLLM.Testing to unit-test code that depends on IChatModel without any real API calls:

dotnet add package WeaveLLM.Testing
var fake = new FakeStreamingChatModel
{
    Tokens = ["Hello", ", ", "world", "!"],
    BlockingResponse = "Hello, world!"
};

var result = await fake.ChatAsync([Message.User("Hi")]);
result.Value!.Content // → "Hello, world!"

⭐ Star on GitHub to follow development

Product Compatible and additional computed target framework versions.
.NET net8.0 is compatible.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 was computed.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 was computed.  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
0.2.1-alpha 64 5/8/2026
0.2.0-alpha 47 5/7/2026
0.1.0-alpha 63 4/26/2026