Africa's oldest financial system insured.
# 🏦 AJO.SAVE - Decentralized ROSCA Protocol on Hedera
# Track - Onchain Finance & Real-World Assets (RWA)
> **Bringing traditional African savings circles (Ajo/Esusu) to Web3 with 90%+ cost reduction using Hedera's native services**
---
## 📋 Table of Contents
- Project Links
- Project Overview
- Hedera Integration Summary
- Architecture Diagram
- Key Features
- Deployed Hedera IDs
- Setup & Installation
- Running the Application
- Smart Contract Architecture
- Demo & Testing
- Economic Model
- Project Links
- Team
---
## Project Links
**Hedera Certification link:** Certificate
**Pitch Deck link:** Pitch deck
---
## 🎯 Project Overview
**Track:** Onchain Finance & Real-World Assets (RWA)
**Problem:** Traditional African savings circles (ROSCAs) rely on trust and face scalability issues. Existing blockchain solutions are too expensive (Ethereum gas fees) or require complex infrastructure.
**Solution:** AJO.SAVE leverages Hedera's unique combination of **HTS (token management)**, **HCS (governance)**, and **HSS (automation)** to create a production-ready ROSCA protocol with 90%+ lower operational costs compared to Ethereum.
**Impact:** Enables financial inclusion for 500M+ unbanked Africans through familiar savings circles, now with blockchain transparency, collateralized security, and automated execution.
---
## 🔗 Hedera Integration Summary
AJO.SAVE is built **exclusively on Hedera**, using all three major Hedera Services to create a fully integrated DeFi protocol. Here's how each service is critical to our solution:
### 1. **Hedera Token Service (HTS)** - Treasury & Distribution Layer
**Why HTS:**
We use official Circle USDC and Hedera WHBAR tokens because HTS provides **native token association at $0.001** compared to Ethereum's $20+ ERC-20 operations. This 95% cost reduction is essential for serving low-income users making $2-5 daily payments.
**Transaction Types Executed:**
- `AccountAllowanceApproveTransaction` - Token spending approval (repla …