Clim Protocol

Clim Protocol is a decentralized parametric insurance platform that provides automatic drought protection for small farmers in Brazil's semi-arid region. The protocol tokenizes climate events as ERC-1155 tokens that pay out automatically when precipitation falls below a defined threshold (e.g., <150mm in 90 days).

What it is:
A fully on-chain insurance system where farmers purchase protection tokens and receive instant payouts when drought conditions are verified by Chainlink oracles, without any bureaucratic processes or inspections.
How it works:

1. Farmers purchase Climate Event Tokens (CET) paying a premium to the protocol
2. Chainlink Functions continuously monitors real precipitation data from Open-Meteo API
3. When the event period ends, Chainlink Automation triggers settlement
4. If drought occurred (precipitation < threshold), Chainlink Functions validates the data
5. Smart contracts automatically transfer funds from the Liquidity Pool to farmers' wallets
6. Entire process is transparent, auditable, and happens in hours instead of months

Problem it solves:

• For Farmers: Access to affordable climate insurance without bureaucracy, with instant payouts
• For Investors: New DeFi yield opportunity providing liquidity to the insurance pool (8-15% ROI)
• For Society: Financial resilience for 28M people living in drought-prone regions

Key Innovation:
First parametric insurance using Chainlink's CRE (Runtime Environment) workflow that orchestrates 8 capabilities (Cron, EVM Read, HTTP Fetch, DON Consensus, Compute, EVM Write, Event Trigger, Loop) in a single composable workflow.

Smart Contracts (Solidity + Foundry):

• 6 core contracts: ClimProtocol (Facade), ClimateEventFactory, ClimateEventToken (ERC-1155), LiquidityPool, SettlementEngine, ClimateOracle
• Built with OpenZeppelin v5.0 (AccessControl, ReentrancyGuard)
• 66/66 tests passing (100% success rate)
• Deployed on Sepolia testnet

Chainlink Integration:

• Chainlink Functions: Fetches real precipitation data from Open-Meteo Archive API via custom JavaScript code
• Chainlink Automation: Implements AutomationCompatible interface for automatic settlement triggers
• Chainlink CRE Workflow: TypeScript workflow orchestrating the complete settlement lifecycle with 8 CRE capabilities

Frontend (Next.js 16):

• PWA with RainbowKit + Web3Auth (social login)
• Multi-language support (EN/PT/ES)
• Dark/light theme
• Dashboard, protection purchase, liquidity provision, settlement redemption

Data Source:

• Open-Meteo Archive API (historical precipitation data)
• Geographic coordinates for Brazilian semi-arid region

Development Tools:

• Foundry (forge, anvil, cast)
• Bun runtime (CRE workflow)
• TypeScript + viem + wagmi
• PowerShell scripts for automation