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UniVoucher: Decentralized Tangible Crypto Gift Cards

Welcome to the official documentation for UniVoucher, the world's first fully decentralized tangible crypto gift card protocol, revolutionizing digital gifting by seamlessly enabling anyone, anywhere to gift any token, in any amount.

Powered by cutting-edge blockchain technology, it breaks down the barriers of traditional crypto gift cards, offering unmatched flexibility, security, and global reach.

What is UniVoucher?

UniVoucher is a fully decentralized protocol that enables anyone to create and redeem tangible crypto gift cards across multiple blockchain networks. Whether you want to share ETH with a friend on Ethereum, AVAX on Avalanche, USDT, USDC, DAI, or any ERC-20 token, UniVoucher provides a secure, transparent, and trustless mechanism to package crypto assets as redeemable tangible gift cards.

Quick Navigation

  • 📖 User Guide
    Complete guides for creating, redeeming, and managing crypto gift cards
  • 💰 Fees and FAQ
    Pricing information and frequently asked questions

What Makes UniVoucher Special?

UniVoucher distinguishes itself through several key characteristics:

🔒 Decentralized Architecture

Unlike traditional gift card systems, UniVoucher operates without a central authority. All gift card data is stored directly on the blockchain:

  • Non-custodial by design - users always control their funds
  • Accessible to anyone, anywhere in the world
  • No account registration required - just connect your wallet
  • Smart contract code is verified and public
  • All transactions settle on-chain with immutable proof

⛓ Multi-Chain Support

UniVoucher supports multiple blockchain networks, allowing you to create and redeem gift cards on the major supported EVM-compatible chains:

  • Ethereum
  • Base
  • BNB Chain
  • Polygon
  • Arbitrum
  • Optimism
  • Avalanche

🪙 Token Flexibility

Create gift cards using:

  • Native tokens (ETH, POL, BNB, AVAX, etc.)
  • USDT, USDC, DAI, or any other ERC-20 token on supported chains

✨ User-Friendly Experience

Despite the complex cryptography under the hood, UniVoucher provides:

  • Simple wallet connection
  • Intuitive card creation process
  • Easy redemption flows
  • User-friendly card secrets (format: XXXXX-XXXXX-XXXXX-XXXXX)

Key Features

  • 🔒 Decentralized: Fully on-chain with no central database or authority
  • ⛓ Multi-Chain: Support for all major EVM-compatible networks
  • 🪙 Hands-on: Can be printed as a physical crypto for a hands-on experience
  • 😄 User-Friendly: Simple, intuitive interface with clear instructions
  • 🛡 Secure: Strong cryptographic security with user-friendly card secrets
  • 👁 Transparent: All operations are verifiable on-chain
  • ⚡ No Registration: Connect your wallet and start using immediately

How UniVoucher Works

At a high level, UniVoucher works through these basic steps:

  1. Card Creation: A user connects their wallet, selects a token, enters an amount, and creates a gift card. The platform generates a secure card ID and secret.

  2. Card Distribution: The creator shares the card ID and secret with the recipient through their preferred communication channel.

  3. Card Redemption: The recipient enters the card ID and secret, connecting their wallet to receive the funds.

  4. Card Management: Creators can view and manage their cards, including canceling unredeemed cards to reclaim funds.

Under the hood, UniVoucher uses a unique cryptographic approach to ensure security without requiring pre-registration of recipients. More details can be found in the Card Security section.

When to Use UniVoucher

UniVoucher is ideal for various scenarios:

  • Gifting cryptocurrency to friends and family
  • Distributing crypto rewards to event participants
  • Creating promo codes that redeem as cryptocurrency
  • Sending cryptocurrency to someone who doesn't have a wallet yet
  • Creating bulk rewards for community members
  • Distributing tokens to team members or contributors

Why Use UniVoucher?

UniVoucher offers multiple advantages over traditional crypto transfers:

  1. Gift Experience: Provides a better gift-giving experience with messages
  2. Hands-on: Can be printed as a physical crypto for a hands-on experience
  3. No Wallet Needed Initially: Recipients only need a wallet when redeeming
  4. Security: Funds remain secure until redeemed
  5. Reclaim Capability: Card creators can cancel unredeemed cards and recover funds
  6. Transparency: All cards are publicly verifiable on-chain

Getting Started

To start using UniVoucher:

  1. Visit univoucher.com
  2. Connect your wallet using the connect button in the top right
  3. Navigate to the Create tab to make your first gift card
  4. Follow the simple steps to complete the process

Ready to create your first tangible crypto gift card? Jump straight to Creating Gift Cards or check out our Quick Start Guide.

For developers interested in the technical details, check out our Technical Reference section.