ExchangeX OTC – P2P & OTC Crypto Exchange Platform Development

Comfygen partnered with a fintech startup to build ExchangeX OTC, a hybrid crypto exchange platform supporting P2P and Over-the-Counter (OTC) trading functionalities. The goal was to create a decentralized yet secure environment where users can trade directly, bypassing traditional intermediaries. This custom-built platform empowers users with privacy, transparency, and control over crypto transactions, with fiat payment integrations across regions like the UAE, India, and Nigeria.

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Challenges

  • Escrow System Complexity: Creating a smart contract-based escrow that automatically releases funds on successful transactions.
  • KYC for P2P: Building a compliance layer without compromising decentralization.
  • Cross-Border Payment Integration: Supporting multiple fiat channels (bank, UPI, PayPal) in different countries.
  • Fraud Protection: Implementing a reputation system and dispute management for buyer-seller safety.
  • Mobile UX Optimization: Delivering a seamless user experience across devices with responsive components.
P2P Crypto Exchange Challenges
P2P Crypto Exchange Solution

Solution

  • Deployed a decentralized P2P trading engine integrated with multi-wallet support.
  • Implemented smart contract-based escrow release triggered by mutual agreement or automated timeout.
  • Integrated KYC with third-party providers like Jumio for global verification.
  • Developed an in-app chat and dispute resolution system between buyers and sellers.
  • Enabled regional fiat on-ramps and auto-matching algorithms for user convenience.

Features

  • Smart Contract Escrow Protection
  • Reputation & Rating System for Traders
  • Multi-Fiat Support (INR, AED, NGN, USD)
  • Instant Trade Matching Algorithm
  • AI-Powered Fraud Detection & Risk Flags
  • Built-in Messaging & Dispute Resolution
  • Crypto Wallet Integration (MetaMask, Trust Wallet)
  • Admin Panel with Trade Monitoring
  • P2P Trading Analytics Dashboard
P2P Crypto Exchange Features
P2P Crypto Exchange Business Benefits

Business Benefits

  • Expanded into 7+ countries within 2 quarters.
  • Reduced fraud complaints by 80% with AI monitoring.
  • Achieved 100% increase in user engagement due to mobile-first UX design.
  • Enabled secure fiat-crypto trading without intermediaries.
  • Facilitated over 250K+ verified KYC user onboardings.

Tech Stack

  • Backend: Express.js, PostgreSQL
  • Frontend: Vue.js, Tailwind CSS
  • Smart Contracts: Solidity, Polygon
  • Mobile: React Native
  • Fiat Integration: Razorpay, Stripe, Flutterwave
  • Security: SSL Encryption, IP Whitelisting
P2P Crypto Exchange Tech Stack