Nexchange - Multi-Chain Cryptocurrency Exchange Platform with 500+ Coins & Real-Time Rates
With ChangeNOW API Integration
Description
Overview
Nexchange is a production-ready cryptocurrency exchange platform built with Next.js 15, Tailwind CSS, and the ChangeNOW API. It allows end-users to exchange 500+ cryptocurrencies without registration, wallet connection, or KYC.
This is a fully working exchange — not a UI mockup. Real-time rates, order creation, deposit address generation with QR codes, and live transaction status tracking all work out of the box with a free ChangeNOW API key.
How the Exchange Works
- Select currencies: User picks a "from" and "to" currency (e.g., BTC to ETH) from 500+ supported coins.
- Enter amount: Real-time exchange rate is fetched instantly. User sees exactly how much they will receive, including all fees.
- Provide receiving address: User enters the wallet address where they want to receive the exchanged cryptocurrency.
- Review and confirm: A confirmation screen shows the full transaction details — rate, fees, estimated time, and receiving address.
- Send funds: A unique deposit address and QR code are generated. User sends their crypto to this address.
- Receive exchanged crypto: The exchange processes automatically. Funds arrive at the user's receiving address, typically within 10-60 minutes.
Revenue Opportunity
ChangeNOW offers an affiliate and revenue-sharing program. When you deploy Nexchange with your own API key, you earn a percentage of each exchange processed through your platform. There is no upfront cost for the API key.
Refer to ChangeNOW's current affiliate terms at changenow.io/affiliate for up-to-date commission structures and details.
Features
Exchange
- 500+ Cryptocurrencies: Bitcoin, Ethereum, Solana, USDT, BNB, XRP, Cardano, Avalanche, Polkadot, Litecoin, Dogecoin, and hundreds more.
- Real-Time Rates: Live exchange rates with deposit and withdrawal fee breakdown.
- Minimum Amount Validation: API-driven minimums prevent failed transactions.
- QR Code Deposit: Deposit addresses displayed with scannable QR codes for mobile users.
- Memo/Extra ID Support: Automatic detection for currencies requiring memos (XRP, XLM, etc.).
- Transaction Status Tracking: Real-time polling (waiting, confirming, exchanging, sending, complete).
- Transaction History: Local history of past exchanges stored in browser.
- No Registration Required: Users can exchange immediately — no accounts, no KYC.
Pages Included
- Home: Hero section with embedded exchange widget, how it works, features, FAQ, and CTA.
- Rates: Live exchange rates for popular trading pairs.
- Explorer: Searchable currency browser with network filters and crypto icons.
- History: Transaction history with status badges and filters.
- About, FAQ, Support, Privacy Policy, Terms of Service, Custom 404.
Design & UX
- Clean Fintech Design: Professional light theme with consistent design system throughout.
- Fully Responsive: Mobile, tablet, and desktop layouts with bottom navigation on mobile.
- Multi-Step Exchange Flow: Form, confirmation, deposit address with QR, and status tracking.
- Real Crypto Icons: 21 bundled SVG icons + ChangeNOW CDN icons for 500+ tokens.
Technology Stack
- Framework: Next.js 15 (App Router)
- Language: TypeScript
- Styling: Tailwind CSS v4
- UI Components: shadcn/ui
- Data Fetching: TanStack React Query
- Exchange API: ChangeNOW v2
- QR Codes: qrcode.react
- Icons: Lucide React + cryptocurrency-icons
Requirements
- Node.js 18 or higher
- Free ChangeNOW API key from changenow.io/api
- Vercel, VPS, or any Node.js hosting
What's Included
- Complete source code (Next.js 15 + TypeScript)
- 21 cryptocurrency SVG icons (open-source)
- HTML documentation with setup, customization, and deployment guides
- Pre-configured environment template
Customization
- Branding: Site name, tagline, description, and links are centralized in a single config file.
- Colors: Theme variables defined in CSS. Change the primary color to match your brand.
- Pages: Add, remove, or modify pages using the standard Next.js App Router.
Important Notices
- API Dependency: This product requires the ChangeNOW API to process exchanges. The API key is free to obtain.
- No Backend Required: All exchange logic is handled client-side through the ChangeNOW API. No database or server-side code needed.
Disclaimer: Web3.Market is a marketplace platform that facilitates the sale of digital products between independent sellers and buyers. We do not develop, endorse, or guarantee any product listed on this platform. All products are provided by third-party sellers and are sold "as is." Web3.Market assumes no responsibility or liability for the functionality, security, legality, or any use or misuse of products purchased through this platform. Buyers are solely responsible for evaluating the suitability of any product for their intended purpose and for ensuring compliance with all applicable laws and regulations. By purchasing, you acknowledge that Web3.Market shall not be held liable for any direct, indirect, incidental, or consequential damages arising from the use of any product.
One-time payment • Lifetime access
Product Info
RPC Providers
Need a reliable RPC endpoint for your dApp? Get started with these trusted providers:
