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Showing content from https://github.com/awaescher/OllamaSharp below:

awaescher/OllamaSharp: The easiest way to use Ollama in .NET

OllamaSharp provides .NET bindings for the Ollama API, simplifying interactions with Ollama both locally and remotely.

🏆 Recommended by Microsoft

• Ease of use: Interact with Ollama in just a few lines of code.
• Reliability: Powering Microsoft Semantic Kernel, .NET Aspire and Microsoft.Extensions.AI
• API coverage: Covers every single Ollama API endpoint, including chats, embeddings, listing models, pulling and creating new models, and more.
• Real-time streaming: Stream responses directly to your application.
• Progress reporting: Real-time progress feedback on tasks like model pulling.
• Tools engine: Sophisticated tool support with source generators.
• Multi modality: Support for vision models.

OllamaSharp wraps each Ollama API endpoint in awaitable methods that fully support response streaming.

The following list shows a few simple code examples.

ℹ Try our full featured demo application that's included in this repository

// set up the client
var uri = new Uri("http://localhost:11434");
var ollama = new OllamaApiClient(uri);

// select a model which should be used for further operations
ollama.SelectedModel = "llama3.1:8b";

var models = await ollama.ListLocalModelsAsync();

await foreach (var status in ollama.PullModelAsync("llama3.1:405b"))
    Console.WriteLine($"{status.Percent}% {status.Status}");

await foreach (var stream in ollama.GenerateAsync("How are you today?"))
    Console.Write(stream.Response);

// messages including their roles and tool calls will automatically be tracked within the chat object
// and are accessible via the Messages property

var chat = new Chat(ollama);

while (true)
{
    var message = Console.ReadLine();
    await foreach (var answerToken in chat.SendAsync(message))
        Console.Write(answerToken);
}

Microsoft built an abstraction library to streamline the usage of different AI providers. This is a really interesting concept if you plan to build apps that might use different providers, like ChatGPT, Claude and local models with Ollama.

I encourage you to read their accouncement Introducing Microsoft.Extensions.AI Preview – Unified AI Building Blocks for .NET.

OllamaSharp is the first full implementation of their IChatClient and IEmbeddingGenerator that makes it possible to use Ollama just like every other chat provider.

To do this, simply use the OllamaApiClient as IChatClient instead of IOllamaApiClient.

// install package Microsoft.Extensions.AI.Abstractions

private static IChatClient CreateChatClient(Arguments arguments)
{
  if (arguments.Provider.Equals("ollama", StringComparison.OrdinalIgnoreCase))
    return new OllamaApiClient(arguments.Uri, arguments.Model);
  else
    return new OpenAIChatClient(new OpenAI.OpenAIClient(arguments.ApiKey), arguments.Model); // ChatGPT or compatible
}

The OllamaApiClient implements both interfaces from Microsoft.Extensions.AI, you just need to cast it accordingly:

• IChatClient for model inference
• IEmbeddingGenerator<string, Embedding<float>> for embedding generation

I would like to thank all the contributors who take the time to improve OllamaSharp. First and foremost mili-tan, who always keeps OllamaSharp in sync with the Ollama API.

The icon and name were reused from the amazing Ollama project.

Special thanks to JetBrains for supporting this project.

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