⚖️ LexRAG — The Legal Intelligence Terminal

Enterprise-Grade Hybrid RAG for UAE & Indian Law, Taxation & Compliance

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What is LexRAG?

LexRAG is a professional-grade, high-performance Retrieval-Augmented Generation (RAG) platform purpose-built for UAE and Indian laws, taxation, accounting standards, and corporate compliance. It combines hybrid dense-sparse retrieval, neural reranking, auto-jurisdiction detection, and multi-provider LLM streaming into a zero-latency terminal interface.

⚡ Built by Evolucent AI — Premium Legal Technology Solutions
🛠️ Engineered by Eulogik — Enterprise AI & Systems Integration

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Key Capabilities

Capability	Technology
Dense Retrieval	BAAI/bge-small-en-v1.5 via fastembed
Sparse Retrieval	prithivida/Splade_PP_en_v1 via fastembed
Hybrid Fusion	Reciprocal Rank Fusion (RRF)
Neural Reranker	BAAI/bge-reranker-base (CrossEncoder)
Vector Database	Qdrant (on-disk, no Docker required)
LLM Providers	Groq, OpenRouter, Ollama (dynamic model catalog)
Jurisdiction	Auto-detect India/UAE/Both with manual override
Confidence Tiers	GROUNDED / PARTIAL / SYNTHESIZED
Streaming	SSE with heartbeat keep-alive
Persistence	SQLite chat history with session management

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Quick Start

# Install from PyPI
pip install lexrag

# Or clone from source
git clone https://github.com/eulogik/LexRAG.git
cd LexRAG
pip install -r requirements.txt

# Configure
cp .env.example .env
# Edit .env with your API keys

# Run
python -m uvicorn api.main:app --host 0.0.0.0 --port 8000
# Open http://localhost:8000

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Architecture

flowchart TD
    UI[HTML/CSS/JS SPA] <-->|SSE / API| FastAPI[FastAPI Server]
    FastAPI <-->|History| SQL[(SQLite)]
    Query --> Detect[Auto-Jurisdiction]
    Detect --> Search{Hybrid Search}
    Search -->|Dense| Dense[BGE-small-en-v1.5]
    Search -->|Sparse| Sparse[Splade_PP_en_v1]
    Dense & Sparse -->|RRF| Qdrant[(Qdrant)]
    Qdrant -->|Candidates| Rerank[BGE-Reranker-Base]
    Rerank -->|Top Docs| Context[Build Prompt]
    Context --> LLM{LLM Router}
    LLM -->|Cloud| Groq[Groq]
    LLM -->|Cloud| OpenRouter[OpenRouter]
    LLM -->|Local| Ollama[Ollama]

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Ecosystem

Platform	Link	Description
GitHub	eulogik/LexRAG	Source code & issues
PyPI	lexrag	Python package
HuggingFace	EvolucentAI/lexrag	Model card & codebase
HF Space	EvolucentAI/lexrag-demo	Interactive Gradio demo
Eulogik	eulogik.com	Engineering partner
Evolucent AI	evolucentai.com	Product & commercial

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License

AGPL v3 — Free for open-source and internal use.
Commercial licenses available from Evolucent AI for proprietary deployments.

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_{Built by Evolucent AI — Engineered by Eulogik}