Develop Safe Rupees: P2P Crypto Platform
Budget: $1,500 – $3,000 AUD
Safe Rupees: A Trustless P2P Crypto-INR Gateway
1. Executive Summary
Safe Rupees is a custodial, off-chain peer-to-peer platform enabling instant USDT/INR trades, cash
top-ups and withdrawals via a vetted agent network, and a transparent, self-enforcing escrow
scheme that eliminates chargeback and fraud risk.
2. Problem & Opportunity
- Chargeback risk on INR transfers blocks growth of P2P crypto in India.
- Agent trust issues: cash agents may abscond with user funds.
- We offer a single-agent, collateral-backed model that is secure, dispute-free, and scales to any
top-up size.
3. Platform Architecture
- Frontend: React (Next.js) with protected routes.
- Backend: NestJS/Express (TypeScript), PostgreSQL + Prisma for atomic ledger.
- Escrow: On-chain USDT stake or custodial ledger holds agent collateral.
4. Agent Network & Escrow Scheme
1. Onboard: Agents register KYC-lite, stake USDT collateral equal to base limit.
2. Task Pool: Cash top-up and withdrawal tasks appear with amounts and rewards.
3. Claim & Complete:
- Agent claims a single task <= their stake.
- Collects cash/delivers payout, uploads photo + OTP.
4. Confirm: Agent and user confirm within a time window -> collateral released, user credited.
5. Slash: Failure to confirm or dispute -> stake slashed and user compensated.
5. P2P Trade Mechanics
- Buyer selects Seller -> specify INR amount & USDT amount.
- Balance check & fees: 0.7% each side.
- Atomic swap: Single DB transaction debits and credits buyer/seller.
- Trade record stored for history and dispute audit.
6. Fees & Incentives
- Platform fees: 1.0% on INR top-ups, 0.6% on withdrawals, 0.7% on trades.
- Agent reward: 0.5% on top-ups, 0.3% on withdrawals; tiered up to 0.75% by reputation.
7. Security & Risk Mitigation
- Collateral escrow enforces honesty.
- OTP + photo proof ensures physical handover.
- Immutable ledger with audit logs.
- Reputation scoring and random spot checks.
8. Roadmap & Milestones
1. MVP (4 weeks): User auth, wallet, agent escrow, trade flow.
2. Beta (8 weeks): Dispute UI, admin panel (React-Admin), scaling agents.
3. Production: Mainnet USDT, compliance audit, mobile PWA.
Heres an example of the working:
Safe Rupees: Simple User Journeys & Platform Overview
1. Buyer's Journey
1. Alice wants to buy 100 USDT for INR.
2. She logs in, goes to 'Wallet' and selects 'Top-Up INR'.
3. She chooses Agent A and gives INR 10,000 in cash.
4. She uploads a photo of the cash and enters an OTP from the agent.
5. Agent A confirms on their app, and Alice's INR balance updates instantly.
6. Alice goes to 'Trade', picks a seller, and exchanges INR for USDT.
2. Seller's Journey
1. Bob has 100 USDT and wants INR.
2. He logs in, goes to 'Wallet' and selects 'Deposit USDT'.
3. He sends USDT to his unique wallet address.
4. His USDT balance shows up quickly.
5. He goes to 'Trade', picks a buyer, and exchanges USDT for INR.
6. After the trade, Bob requests a cash withdrawal and picks an agent.
7. Agent B delivers cash and Bob uploads proof. His INR balance updates.
3. Agent Signup & Distribution
1. Anyone can apply to be an agent via the 'Become Agent' form on the website.
2. Agents provide name, email, phone, and a small USDT escrow deposit.
3. After review, agents receive login and see tasks in their region.
4. Agents are situated across cities and states, covering major and remote areas.
5. The platform uses geolocation to match users with nearby agents.
4. Core Platform Flow
- All actions follow: request -> proof -> confirm -> update balances.
- Agents lock up a stake before taking tasks; their stake secures user funds.
- If an agent fails to confirm, their stake covers the user automatically.
- Platform charges small fees to cover operations and reward agents.
5. Key Benefits
- No banks involved in top-ups or withdrawals.
- Single agent handles each transaction end-to-end.
- Collateral ensures agents act honestly.
- Instant peer-to-peer exchange with clear fees.
1. Executive Summary
Safe Rupees is a custodial, off-chain peer-to-peer platform enabling instant USDT/INR trades, cash
top-ups and withdrawals via a vetted agent network, and a transparent, self-enforcing escrow
scheme that eliminates chargeback and fraud risk.
2. Problem & Opportunity
- Chargeback risk on INR transfers blocks growth of P2P crypto in India.
- Agent trust issues: cash agents may abscond with user funds.
- We offer a single-agent, collateral-backed model that is secure, dispute-free, and scales to any
top-up size.
3. Platform Architecture
- Frontend: React (Next.js) with protected routes.
- Backend: NestJS/Express (TypeScript), PostgreSQL + Prisma for atomic ledger.
- Escrow: On-chain USDT stake or custodial ledger holds agent collateral.
4. Agent Network & Escrow Scheme
1. Onboard: Agents register KYC-lite, stake USDT collateral equal to base limit.
2. Task Pool: Cash top-up and withdrawal tasks appear with amounts and rewards.
3. Claim & Complete:
- Agent claims a single task <= their stake.
- Collects cash/delivers payout, uploads photo + OTP.
4. Confirm: Agent and user confirm within a time window -> collateral released, user credited.
5. Slash: Failure to confirm or dispute -> stake slashed and user compensated.
5. P2P Trade Mechanics
- Buyer selects Seller -> specify INR amount & USDT amount.
- Balance check & fees: 0.7% each side.
- Atomic swap: Single DB transaction debits and credits buyer/seller.
- Trade record stored for history and dispute audit.
6. Fees & Incentives
- Platform fees: 1.0% on INR top-ups, 0.6% on withdrawals, 0.7% on trades.
- Agent reward: 0.5% on top-ups, 0.3% on withdrawals; tiered up to 0.75% by reputation.
7. Security & Risk Mitigation
- Collateral escrow enforces honesty.
- OTP + photo proof ensures physical handover.
- Immutable ledger with audit logs.
- Reputation scoring and random spot checks.
8. Roadmap & Milestones
1. MVP (4 weeks): User auth, wallet, agent escrow, trade flow.
2. Beta (8 weeks): Dispute UI, admin panel (React-Admin), scaling agents.
3. Production: Mainnet USDT, compliance audit, mobile PWA.
Heres an example of the working:
Safe Rupees: Simple User Journeys & Platform Overview
1. Buyer's Journey
1. Alice wants to buy 100 USDT for INR.
2. She logs in, goes to 'Wallet' and selects 'Top-Up INR'.
3. She chooses Agent A and gives INR 10,000 in cash.
4. She uploads a photo of the cash and enters an OTP from the agent.
5. Agent A confirms on their app, and Alice's INR balance updates instantly.
6. Alice goes to 'Trade', picks a seller, and exchanges INR for USDT.
2. Seller's Journey
1. Bob has 100 USDT and wants INR.
2. He logs in, goes to 'Wallet' and selects 'Deposit USDT'.
3. He sends USDT to his unique wallet address.
4. His USDT balance shows up quickly.
5. He goes to 'Trade', picks a buyer, and exchanges USDT for INR.
6. After the trade, Bob requests a cash withdrawal and picks an agent.
7. Agent B delivers cash and Bob uploads proof. His INR balance updates.
3. Agent Signup & Distribution
1. Anyone can apply to be an agent via the 'Become Agent' form on the website.
2. Agents provide name, email, phone, and a small USDT escrow deposit.
3. After review, agents receive login and see tasks in their region.
4. Agents are situated across cities and states, covering major and remote areas.
5. The platform uses geolocation to match users with nearby agents.
4. Core Platform Flow
- All actions follow: request -> proof -> confirm -> update balances.
- Agents lock up a stake before taking tasks; their stake secures user funds.
- If an agent fails to confirm, their stake covers the user automatically.
- Platform charges small fees to cover operations and reward agents.
5. Key Benefits
- No banks involved in top-ups or withdrawals.
- Single agent handles each transaction end-to-end.
- Collateral ensures agents act honestly.
- Instant peer-to-peer exchange with clear fees.