Hazina.App.AppBuilder 1.0.0

Hazina

Production-ready AI infrastructure for .NET that scales from prototype to production without rewriting your code.

Why Hazina Instead of X?

Hazina wins because:

• 4 lines to production — One-line setup, automatic provider failover, built-in fault detection
• No vendor lock-in — Switch between OpenAI, Anthropic, local models with zero code changes
• Ship faster — RAG, agents, embeddings, and monitoring included — not bolted on

30-Minute Quickstart

Build a production-ready RAG AI that answers questions from your documents:

dotnet new console -n MyRAGApp
cd MyRAGApp
dotnet add package Hazina.AI.FluentAPI
dotnet add package Hazina.AI.RAG

using Hazina.AI.FluentAPI.Configuration;
using Hazina.AI.RAG.Core;

// 1. Setup (one line)
var ai = QuickSetup.SetupOpenAI(Environment.GetEnvironmentVariable("OPENAI_API_KEY")!);

// 2. Create RAG engine
var vectorStore = new InMemoryVectorStore();
var rag = new RAGEngine(ai, vectorStore);

// 3. Index your documents
await rag.IndexDocumentsAsync(new List<Document>
{
    new() { Content = "Hazina is a .NET AI framework for production applications." },
    new() { Content = "RAG combines retrieval with generation for accurate answers." }
});

// 4. Query with context
var response = await rag.QueryAsync("What is Hazina?");
Console.WriteLine(response.Answer);

This scales from demo → production without rewriting.

See the full 30-Minute RAG Tutorial for:

• Swap LLM providers via config
• Add PostgreSQL/Supabase backend
• Enable/disable embeddings
• Add multi-layer reasoning

Installation

# Core package (minimal)
dotnet add package Hazina.AI.FluentAPI

# Add RAG capabilities
dotnet add package Hazina.AI.RAG

# Add agentic workflows
dotnet add package Hazina.AI.Agents

# Add production monitoring
dotnet add package Hazina.Production.Monitoring

Feature Comparison

vs LangChain (Python)

# LangChain - 15+ lines, Python only
from langchain.llms import OpenAI
from langchain.chains import RetrievalQA
from langchain.vectorstores import Chroma
from langchain.embeddings import OpenAIEmbeddings

embeddings = OpenAIEmbeddings()
vectorstore = Chroma.from_documents(docs, embeddings)
llm = OpenAI()
chain = RetrievalQA.from_chain_type(llm, retriever=vectorstore.as_retriever())
# No built-in failover, cost tracking, or hallucination detection

// Hazina - 4 lines, native C#
var ai = QuickSetup.SetupWithFailover(openAiKey, anthropicKey); // Auto-failover
var rag = new RAGEngine(ai, vectorStore);
await rag.IndexDocumentsAsync(docs);
var answer = await rag.QueryAsync("question"); // Cost tracked automatically

vs Semantic Kernel

// Semantic Kernel - requires plugins, manual setup
var kernel = Kernel.CreateBuilder()
    .AddOpenAIChatCompletion("gpt-4", apiKey)
    .Build();
// Failover? Add another plugin. Cost tracking? Write it yourself.

// Hazina - batteries included
var ai = QuickSetup.SetupWithFailover(openAiKey, anthropicKey);
ai.EnableCostTracking(budgetLimit: 10.00m);
ai.EnableHealthMonitoring();
// Failover, cost tracking, health checks — all built-in

vs Rolling Your Own

Total: 12-19 weeks of work → 0 with Hazina

Architecture

┌─────────────────────────────────────────────────────────────────┐
│                        Your Application                          │
└─────────────────────────────────────────────────────────────────┘
                              │
                              ▼
┌─────────────────────────────────────────────────────────────────┐
│                     Hazina.AI.FluentAPI                          │
│  Hazina.AI() → .WithProvider() → .WithFaultDetection() → Ask()  │
└─────────────────────────────────────────────────────────────────┘
          │              │              │              │
          ▼              ▼              ▼              ▼
┌──────────────┐ ┌──────────────┐ ┌──────────────┐ ┌──────────────┐
│   Providers  │ │    RAG       │ │   Agents     │ │  Neurochain  │
│  OpenAI      │ │  Indexing    │ │  Tools       │ │  Multi-layer │
│  Anthropic   │ │  Retrieval   │ │  Workflows   │ │  Reasoning   │
│  Local LLMs  │ │  Generation  │ │  Coordination│ │  Validation  │
└──────────────┘ └──────────────┘ └──────────────┘ └──────────────┘
          │              │              │              │
          └──────────────┴──────────────┴──────────────┘
                              │
                              ▼
┌─────────────────────────────────────────────────────────────────┐
│                  Production Monitoring                           │
│         Metrics • Cost Tracking • Health Checks                  │
└─────────────────────────────────────────────────────────────────┘

Core Capabilities

Multi-Provider Orchestration

var ai = QuickSetup.SetupWithFailover(openAiKey, anthropicKey);

// Automatic failover when primary fails
var response = await ai.GetResponse(messages); // Uses OpenAI, fails over to Claude

// Or select by strategy
ai.SetDefaultStrategy(SelectionStrategy.LeastCost);     // Cheapest provider
ai.SetDefaultStrategy(SelectionStrategy.FastestResponse); // Fastest provider

Fault Detection & Hallucination Prevention

var result = await Hazina.AI()
    .WithFaultDetection(minConfidence: 0.9)
    .Ask("What is the capital of France?")
    .ExecuteAsync();

// Automatically validates responses
// Detects hallucinations
// Retries with refined prompts if needed

RAG (Retrieval-Augmented Generation)

var rag = new RAGEngine(ai, vectorStore);

// Index documents with smart chunking
await rag.IndexDocumentsAsync(documents);

// Query with automatic context retrieval
var response = await rag.QueryAsync("Explain the authentication flow", new RAGQueryOptions
{
    TopK = 5,
    MinSimilarity = 0.7,
    RequireCitation = true
});

Agentic Workflows

var coordinator = new MultiAgentCoordinator();

coordinator.AddAgent(new Agent("researcher", researchPrompt, ai));
coordinator.AddAgent(new Agent("writer", writerPrompt, ai));
coordinator.AddAgent(new Agent("reviewer", reviewerPrompt, ai));

var result = await coordinator.ExecuteAsync("Write a blog post about AI",
    CoordinationStrategy.Sequential);

Multi-Layer Reasoning (Neurochain)

var neurochain = new NeuroChainOrchestrator();
neurochain.AddLayer(new FastReasoningLayer(ai));   // Quick analysis
neurochain.AddLayer(new DeepReasoningLayer(ai));   // Thorough analysis
neurochain.AddLayer(new VerificationLayer(ai));    // Cross-validation

var result = await neurochain.ReasonAsync("Complex question requiring high confidence");
// Returns 95-99% confidence through independent validation

Documentation

• 30-Minute RAG Tutorial — Build production RAG in 30 minutes
• Knowledge Storage & Search Model — Agent-first architecture, metadata-driven storage
• RAG Guide — Document indexing, chunking, retrieval
• Agents Guide — Tool calling, workflows, coordination
• Neurochain Guide — Multi-layer reasoning
• Code Intelligence Guide — Refactoring, analysis
• Production Monitoring Guide — Metrics, health checks
• Supabase Setup — Cloud database backend

Quick Start

# Clone and build
git clone https://github.com/hazina-ai/hazina.git
cd hazina
dotnet restore Hazina.sln
dotnet build Hazina.sln

# Run demos
dotnet run --project apps/Demos/Hazina.Demo.Supabase

Contributing

We welcome contributions! See CONTRIBUTING.md for guidelines.

License

MIT License - see LICENSE for details.

Built for .NET developers who ship production AI.