RadiShield - Parametric Crop Insurance Platform

Overview

RadiShield is a blockchain-based parametric crop insurance platform designed to provide automated, weather-triggered payouts for African farmers. Unlike traditional insurance, RadiShield uses real-time weather data from multiple oracle sources to automatically process claims without manual intervention.

🏆 Won EthNile'25 Flare Track

The Problem

Small-scale farmers in Africa face significant challenges:

• Traditional crop insurance is expensive and slow to process
• Manual claim verification takes weeks or months
• Farmers often can't afford to wait during disasters
• Limited insurance access in rural areas

Our Solution

RadiShield provides instant, automated insurance payouts:

• Smart contracts trigger payouts when weather conditions are met
• No manual claim filing required
• Payouts within minutes of verified weather events
• Affordable premiums with pooled risk

Key Features

Weather Oracle System

• Real-time weather data from multiple sources
• Multi-source validation prevents manipulation
• Automated drought, flood, and heatwave detection
• Historical weather pattern analysis

Automated Claim Processing

• No paperwork or claim filing needed
• Smart contracts verify weather conditions automatically
• Instant payout upon trigger event
• Transparent, on-chain claim history

Parametric Insurance Model

• Predefined trigger conditions (temperature, rainfall, etc.)
• Fixed payout amounts based on coverage tier
• Quick settlement without damage assessment
• Lower operational costs passed to farmers

Technical Implementation

Smart Contracts

• Insurance Pool: Manages premium deposits and payouts
• Oracle Consumer: Fetches and validates weather data
• Claim Processor: Automated trigger-based claim execution
• Access Control: Multi-sig admin functions

Weather Oracle

• Multiple Data Sources: Redundancy prevents single point of failure
• Data Validation: Cross-reference between sources
• Update Frequency: Regular intervals with event-triggered updates
• Historical Records: On-chain weather history

Tech Stack

Blockchain

• Solidity: Smart contract development
• Flare Network: Oracle-native blockchain
• Ethers.js: Contract interaction

Backend

• Express.js: API server for oracle data
• TypeScript: Type-safe development
• Weather APIs: Multiple data source integration

Frontend

• Next.js: React framework
• Tailwind CSS: Responsive UI
• Web3 Integration: Wallet connection and transactions

Impact Vision

RadiShield aims to protect millions of small-scale farmers who are most vulnerable to climate change. By removing friction from insurance claims, we enable farmers to recover quickly and continue producing food for their communities.

What I Learned

• Real-world applications of blockchain for social impact
• Oracle design and multi-source data validation
• Parametric insurance mechanics
• Building for users with limited technical access