Slide 8 — Architecture Diagram

Architecture Diagram

KrishiSaathi – AWS Multi-Agent Architecture

Left-to-right data flow: User Interface → Voice Processing → Multi-Agent AI (Bedrock) → Knowledge Layer → Infrastructure

Layer 1

🖥️ User Interface

💬

Streamlit Web App

7-page PWA · Chat, Crop Doctor,
Market, Schemes, Weather, Soil, Admin

🤖

Telegram Bot

Multi-language bot integration
python-telegram-bot

🗣️

Voice Interface

Audio recorder widget
12 Indian language support

📧

Email Service

Gmail SMTP · Verification
Password reset flow

Layer 2

🗣️ Voice & Language

🎤

Amazon Transcribe

STT · 10 Indian languages
en, hi, te, ta, kn, ml, mr, bn, gu, pa

🌐

Translation Engine

deep-translator · 12 languages
Unicode script detection

🔊

Amazon Polly

Neural TTS · Kajal voice
en-IN / hi-IN

🔈

gTTS Fallback

Google TTS for 8 regional
te, ta, kn, ml, mr, bn, gu, pa

Layer 3

🧠 Multi-Agent AI

Amazon Bedrock

⭐

Claude 3.5 Sonnet

Reasoning + Vision · Complex
analysis & image understanding

⚡

Claude 3 Haiku

Fast classification · Lightweight
intent detection & synthesis

🧠

Supervisor Agent

Orchestration · Intent routing
Memory injection · Synthesis

🩺

Crop Doctor

📊

Market

🏛️

Scheme

🌦️

Weather

🌱

Soil

Layer 4

📚 Knowledge & Data

🔍

ChromaDB RAG Engine

8 collections · 50K+ docs
gemini-embedding-001

🗄️

Amazon RDS PostgreSQL

7 tables · SSL · Auto-backup
profiles, chat, memories, etc.

🧠

Memory Engine

Mem0-inspired · 10 categories
Cosine similarity dedup (0.92)

🌐

External APIs

OpenWeatherMap · Mandi prices
Government scheme databases

Layer 5

⚙️ Infrastructure & Security

☁️

Amazon EC2

Ubuntu · ap-south-1 (Mumbai)
krishisaathi.shashi.engineer

🪣

Amazon S3

krishisaathi-voice-temp bucket
Temporary voice file storage

🔐

IAM Roles

Least-privilege access
Bedrock, Polly, Transcribe, S3

🔒

Auth & Security

bcrypt + JWT (HS256)
1-day access / 4-day refresh