Enterprise-Grade AI Platform

🤖 B9AI Intelligent Chatbot System

An enterprise-grade AI communication platform built with FastAPI backend, LangChain & LangGraph for advanced AI orchestration, plugin-based agent architecture, MongoDB learning engine, Cosmos DB vector database for semantic search and RAG, and Next.js frontend. Designed for businesses, e-commerce, POS systems, agency ERPs, helpdesk automation, customer support, and knowledge-base automation.

FastAPI Backend
AI Orchestration
LangChain
LangGraph
Plugin Agents
MongoDB Learning
Cosmos DB Vector
Next.js Frontend
Cloud SaaS

System Architecture

Project Structure

chatbot_server/
├── main.py              # FastAPI entry point
├── database.py          # MongoDB connection
├── requirements.txt
│
├── routers/
│   └── chat_router.py   # REST API endpoints
│
├── services/
│   ├── ai_service.py    # AI orchestrator
│   ├── agent_manager.py # Agent loader
│   ├── learning_service.py # Pattern learning
│   └── agents/
│       ├── base_agent.py
│       ├── agent_registry.py
│       ├── database_agent.py
│       └── web_search_agent.py
│
├── models/              # Database schemas
├── schemas/             # Pydantic models
└── chatbot-app/         # Next.js frontend

FastAPI Backend

Ultra-fast asynchronous Python API engine with high concurrency support

Python AI Engine

Advanced AI processing with LLM integration and natural language understanding

LangChain Integration

LangChain framework for building LLM-powered applications with chains and agents

LangGraph Integration

LangGraph for building stateful, multi-agent applications with graph-based workflows

Plugin-Based Agents

Modular agent system with dynamic plugin loading and registry pattern

MongoDB Learning Storage

Persistent pattern learning and conversational memory storage

Cosmos DB Vector Database

Azure Cosmos DB for vector embeddings, semantic search, and RAG (Retrieval-Augmented Generation)

Next.js 15 Frontend

Modern React-based chat UI with real-time messaging and streaming

AI Orchestration Layer

Intelligent query routing and multi-agent coordination system

Cloud-Distributed Deployment

Scalable cloud infrastructure with auto-scaling capabilities

Docker Support

Containerized deployment for consistent environments

Kubernetes Compatible

Container orchestration for auto-scaling and management

Kafka Integration

Real-time event streaming and message queuing

AI Orchestration System

Powered by LangChain for chain-based workflows and LangGraph for stateful multi-agent orchestration.

AI Service Pipeline

1

Input Understanding

Natural language processing and intent detection

2

Agent Selection

Intelligent routing to appropriate specialized agent

3

LLM Processing

Advanced language model response generation

4

Pattern Learning

Store conversational patterns for future improvement

5

Response Dispatch

Deliver optimized response to user interface

Multi-Agent System

Web Search Agent

Real-time web search capabilities for up-to-date information retrieval

Database Agent

Query and interact with your business databases intelligently

POS Agent

Point-of-sale system integration and transaction handling

ERP Agent

Enterprise resource planning system integration and automation

Custom Business Agents

Extensible framework for custom business logic agents

✨ Agents can be added without modifying the core system - fully extensible plugin architecture.

LangChain & LangGraph Integration

LangChain

Powerful framework for building LLM-powered applications with chains, agents, and memory.

  • Chain-based LLM workflows
  • Agent framework for tool use
  • Memory management (conversational & vector)
  • Prompt templates & optimization
  • Document loaders & text splitters
  • RAG with Cosmos DB vector search

LangGraph

Build stateful, multi-agent applications with graph-based workflows and complex reasoning.

  • Stateful agent workflows
  • Graph-based agent orchestration
  • Multi-agent coordination
  • Conditional routing & loops
  • Checkpointing & persistence
  • Human-in-the-loop support

Advanced AI Capabilities: Our chatbot leverages LangChain for building sophisticated LLM chains and agents, while LangGraph enables complex multi-agent workflows with stateful reasoning. This combination provides enterprise-grade AI orchestration for handling complex business scenarios.

Cosmos DB Vector Database

Azure Cosmos DB provides enterprise-grade vector database capabilities for semantic search, similarity matching, and Retrieval-Augmented Generation (RAG) workflows.

Vector Embeddings Storage

Store high-dimensional vector embeddings for documents, conversations, and knowledge base

Semantic Search

Fast similarity search using cosine similarity and other distance metrics

RAG Integration

Retrieval-Augmented Generation for context-aware responses using vector search

High Performance

Sub-millisecond query latency with global distribution and auto-scaling

Enterprise Security

Azure-grade security with encryption at rest and in transit

Global Distribution

Multi-region deployment for low-latency access worldwide

Vector Search & RAG: Cosmos DB enables powerful semantic search capabilities, allowing the chatbot to retrieve relevant context from your knowledge base using vector similarity. Combined with LangChain's RAG framework, this provides accurate, context-aware responses based on your business documents and data.

Learning Engine

Pattern Storage

Stores common queries and conversational patterns in MongoDB

Pattern Identification

Identifies repeated patterns and user intent clusters

Response Improvement

Continuously improves responses based on learned patterns

MongoDB Memory

Persistent memory storage for long-term learning

Query Clustering

Groups similar queries for efficient response matching

Smart Reranking

Intelligently ranks responses based on context and history

API Endpoints

POST/chat/send

Send message to chatbot and receive AI-powered response

GET/chat/history/{session_id}

Retrieve complete conversation history for a session

POST/chat/learn

Store new conversational patterns for AI learning

GET/chat/agents

List all available plugin-based agents

GET/chat/sessions

Get all active chat sessions

POST/chat/stream

Stream responses in real-time for better UX

🔌 API-Based System: Integrate our chatbot into any system via RESTful API. Subscription-based access starting at $20/month.

Enterprise-Grade Security

JWT Authentication

Secure token-based authentication with automatic token rotation

Encrypted MongoDB Storage

Data encryption at rest and in transit for all conversations

CORS Protection

Configured CORS policies for secure cross-origin requests

Rate Limiting

API rate limiting to prevent abuse and ensure fair usage

Input Sanitization

Comprehensive input validation and sanitization pipeline

Safe Prompt Pipeline

Protected prompt engineering to prevent injection attacks

API Key Protection

Secure storage and management of LLM API keys

Microsoft Clean Architecture

Enterprise-grade architecture following Microsoft best practices

Performance & Scalability

Asynchronous FastAPI for non-blocking IO
High concurrency support (1000+ concurrent users)
Microservice-ready architecture
Horizontal scaling capabilities
Cloud deployment (AWS, Azure, GCP)
Load balanced agent services
Optimized MongoDB indexes
Response caching for common queries

Next.js Frontend (Chat UI)

Next.js 15

Latest Next.js with App Router and React 19

Real-time Chat UI

Instant messaging interface with typing indicators

Message Streaming

Stream responses character-by-character for better UX

Role-Based Dashboard

Admin dashboard with user management and analytics

Authentication

Secure login and session management

Light/Dark Theme

Customizable UI themes for better user experience

Cloud Deployment

Docker containerization
CI/CD ready
Kubernetes compatible
Auto-scaling support
99.9% uptime guarantee
Secure environment variables

Business Benefits

Reduce Support Costs

Cut customer support costs by up to 60% with automated responses

Automate FAQs

Handle common questions instantly without human intervention

Auto-Learn from Users

Continuously improves by learning from every conversation

Unlimited Custom Agents

Add unlimited specialized agents for your business needs

Multi-Language Support

Support customers in multiple languages seamlessly

Fast & Optimized

Sub-second response times with optimized AI processing

ERP/POS Integration

Seamless integration with your existing business systems

24/7 Availability

Round-the-clock customer support without downtime

Perfect For

E-commerce businessesPOS systemsAgency ERPsHelpdesk automationCustomer support teamsKnowledge-base automationService businessesEducational institutionsHealthcare providersAny customer-facing business

Subscription Plans

Monthly
Popular
$20/month

Billed monthly, cancel anytime

Yearly
Save $0
$240/year

Billed annually, same price

API-Based Integration: Implement our chatbot into your system via RESTful API. We implement customer requirements as needed. Our main plan: customer satisfaction.

Contact Us

Company

B9zero

Services

AI Chatbot, API Integration, Custom Development