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UniVoucher Review 2026: Crypto Gift Cards Redeemed by Secret Code

UniVoucher is a gift card protocol where a card is funded with ETH or an ERC20 token on an EVM chain and redeemed by anyone holding its secret code. Its on-chain footprint is very small, and the protocol's own fees and team are not published.

By the DappsAtlas editorial team · Updated

DappsAtlas score

5.5/10

Mixed

Our verdict on UniVoucher

5.5/10

UniVoucher suits people who want to send stablecoins or small amounts of ETH as a gift without asking the recipient for an account, and merchants who want to sell crypto vouchers through existing storefronts. Its main strength is a simple model: a card is a secret code that anyone holding it can redeem, with no signup and a choice of seven EVM networks. The main caveat is trust in the card secret. Whoever holds the code can redeem the funds, so a lost or leaked card is effectively lost money. The homepage names two audit firms without summarising their findings, and on-chain activity is very small.

Score breakdown

How UniVoucher scores

Security
4.0/10
Ease of use
7.0/10
Fees
5.0/10
Features
6.0/10

Scores run from 0 to 10 and are based only on facts we could verify. Where information was missing we mark the score n/a rather than guess.

What is UniVoucher?

UniVoucher is a crypto gift card protocol. Its homepage describes it as a decentralized way to create and redeem gift cards in ETH or ERC20 tokens across major EVM networks, including Ethereum, Base, BNB Chain, Polygon, Arbitrum, Optimism and Avalanche.

The product is built around a card ID and a secret code. A creator funds a card and shares the details with a recipient, who redeems it on the site. The homepage says no signup is required and that users only need to connect a wallet.

The project has an ecosystem around the core product. Third-party marketplaces such as G2A, Kinguin and BuySellVouchers list UniVoucher cards, a WooCommerce plugin lets online stores sell them, and a gasless redemption service is described for Base. Tracking data shows about $198 in total value locked across chains, which indicates very low activity at the time of review.

The project does not state a token, and public sources reviewed do not name the team behind it.

How UniVoucher works

A UniVoucher card is a record on a blockchain network that holds a value in ETH or an ERC20 token. When a card is created, the creator funds it on the chosen network and receives a card ID and a 20-character secret code in the format XXXXX-XXXXX-XXXXX-XXXXX.

The redemption step does not check who the recipient is. Anyone who enters the correct card ID and secret can claim the funds. This is the same principle as a physical gift card with a scratch-off code, which is why the homepage shows a scratch-to-reveal design. The secret is therefore the most important piece of information in the transaction.

Because the card lives on a public chain, its status and remaining balance can be checked on-chain. The homepage describes cards as active until they are redeemed or cancelled. Third-party marketplaces resell cards, and partners can integrate redemption into wallets and payment tools.

6 features

Key features

01

Multi-token gift cards

Cards can hold ETH or ERC20 tokens, and the homepage examples show USDC and USDT.

02

Secret-code redemption

Cards are redeemed with a card ID and a 20-character secret, so no account is needed.

03

Multi-chain support

The service runs across seven EVM networks, so users can pick a chain.

04

Gasless redemption

The homepage describes a Redeem Base service for redemption without paying gas or making a transaction.

05

Storefront and plugin distribution

A WooCommerce plugin lets online stores sell UniVoucher cards, and listed marketplaces resell them.

06

Public API and docs

Documentation and a public API are offered for developers and integrators.

Pros and cons

What we like

  • Simple model: a card is funded on-chain and redeemed with a card ID and secret, with no signup required.
  • Seven EVM networks are supported, so users can choose a chain and token.
  • Integration and creation partners can set up without prior approval, according to the homepage.
  • A public API and documentation are offered for developers.
  • Two audit firms are named on the homepage.

Watch out for

  • Whoever holds the card secret can redeem the funds, so a lost or leaked code means lost money with no recovery route described.
  • The protocol's own fees are not published in the materials reviewed, so the total cost of a card is harder to estimate.
  • Two audit firms are named on the homepage, but their findings are not summarised there, and tracking data lists no audits.
  • Total value locked is about $198 across all chains, so activity is very small and liquidity for redemption is not a concern only because amounts are tiny.
  • Partner listings on third-party marketplaces add counterparties whose terms, refunds and identity checks sit outside the protocol.

UniVoucher fees

The homepage describes a 1% partner fee charged on every redemption transaction for integration partners such as wallets, exchanges, bridges and payment gateways. Creation partners, including online stores and plugin developers, set their own revenue, which the homepage describes as unlimited.

The protocol's own fee for creating or funding a card is not published in the materials reviewed. Users would see network gas costs on the chain they choose, and resellers on third-party marketplaces may add their own prices and fees.

Is UniVoucher safe?

Smart-contract risk is the main concern. The homepage names two audit firms, SafetyBytes and Valves Security, but does not summarise their findings, and tracking data lists no audits. Read the audit reports yourself and do not rely on the names alone.

Custody is non-custodial in the sense that funds sit in on-chain contracts rather than with a company. The counterparty risk is the card secret itself: the protocol cannot reverse a redemption, and a leaked code can be used by whoever sees it. Third-party marketplaces that resell cards carry their own risks, including refund and identity terms, which are set by those sellers.

The homepage does not describe a licence or regulatory status, and the project does not establish how the project is treated under local rules. Crypto gift cards may be restricted or treated differently depending on where you live, so check the rules that apply to you. This is not a gambling product, and no age or identity checks are described.

6 steps

How to get started with UniVoucher

  1. 1

    Confirm that using online gambling is not relevant here and that crypto gift cards are legal and permitted where you live.

  2. 2

    Open univoucher.com and connect a compatible wallet.

  3. 3

    Choose one of the supported networks and check the gas token you need on that chain.

  4. 4

    Create a card by selecting an ETH or ERC20 amount and a network, then record the card ID and secret.

  5. 5

    Send the card ID and secret to the recipient through a private channel.

  6. 6

    The recipient opens the Redeem tab, enters the card ID and 20-character secret, and redeems the card.

Who UniVoucher is for

UniVoucher is for people who want to send a crypto gift to someone who does not have an exchange account, and for online stores that want to sell crypto vouchers. It is less suited to large transfers or to users who need clear fees and a named team before committing funds.

UniVoucher FAQs

What is UniVoucher?

UniVoucher is a protocol for creating and redeeming crypto gift cards on several EVM networks. The creator funds a card and receives a card ID and a 20-character secret, and the recipient redeems it with both. The homepage describes the service as decentralized and open source.

How do UniVoucher gift cards work?

A card is funded on-chain and is redeemed by entering its card ID and secret code on the site. The secret is the key to the funds, so anyone who sees it can redeem the card. The homepage example shows a 100 USDC card on Ethereum with a status of Active.

Which blockchains does UniVoucher support?

The homepage lists Ethereum, Base, BNB Chain, Polygon, Arbitrum, Optimism and Avalanche. Cards are created and redeemed on these networks, so the network you use determines the token and gas costs you pay.

Does UniVoucher charge fees?

The homepage says redemption can be gasless through a Redeem Base service. Partners that enable redemption pay a 1% fee on each redemption transaction, and partners that create cards can set their own revenue. The protocol's own fee for creating a card is not stated in the materials reviewed.

Has UniVoucher been audited?

The homepage lists two audit firms, SafetyBytes and Valves Security, but does not summarise their findings. Tracking data lists no audits. Check the audit reports directly before funding a large card.

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How we checked

Sources

  1. 1.defillama.com/protocol/univoucher
  2. 2.mcp.so/servers/univoucher-mcp
  3. 3.fr.wordpress.org/plugins/univoucher-for-woocommerce/

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