DePay Payment Gateway: A Web3-First, Decentralized Crypto Payments Solution

Overview

DePay is a modern Web3 payment gateway that allows businesses around the world to accept crypto payments directly into their wallets, without intermediaries or custodial risk. It supports multiple blockchains, hundreds of wallets, and thousands of tokens. DePay provides instant, non-custodial, peer-to-peer settlement with built-in auto-conversion and an easy one-click checkout process.

Key Features & Capabilities

1. Decentralized, Non‑custodial Transactions

DePay eliminates intermediary custody by enabling direct wallet‑to‑wallet payments. Funds move straight from the customer’s wallet to the merchant’s configured wallet address, with no funds ever held by a third party. This eliminates chargeback risk and ensures instant availability of funds.

2. Multi‑Chain & Token Agnostic

DePay supports payments across a broad range of blockchains, including Ethereum, BNB Smart Chain, Polygon, Solana, Arbitrum, Optimism, Avalanche, Fantom, Gnosis, Base, and World Chain. This truly multi‑chain architecture enables global reach and future extensibility.
The platform accepts thousands of tokens, provided they follow token standards and are convertible via supported decentralized exchanges. This significantly expands payment choice and drives conversion.

3. Auto‑Conversion & Intelligent Routing

When a customer initiates payment, DePay scans the connected wallet and calculates live routing quotes from decentralized exchanges, determining the most cost‑efficient payment path. The system auto‑converts customer tokens into the token(s) the merchant has configured to receive, such as USDC, USDT, ETH, BNB, or MATIC, ensuring merchants obtain the currencies they prefer.

4. One‑Click Checkout Experience

DePay’s V2 and V3 protocols support a streamlined payment flow: no approval transactions, no repeated signatures. Users approve just once, and subsequent payments happen in one click. The experience rivals traditional e‑commerce checkout in simplicity, driving higher conversion with minimal friction.

5. Open-Source, Trustless Protocol

DePay is built on an open‑source Web3 payment protocol that can be independently validated. There’s no trust required in third parties, as transactions are routed and settled via smart contracts and decentralized liquidity pools. The entire codebase is publicly auditable and extensible.

6. Embeddable SDK, Plugins, and Payment Links

Integration options include a lightweight JavaScript/TypeScript widget for direct embedding, no‑backend HTML buttons, Shopify and WooCommerce plugins, and WordPress support. DePay also supports no‑code Payment Links for off‑site or manual invoicing.

7. Extensive Wallet Compatibility

The gateway supports hundreds of wallets, including MetaMask, Phantom, Coinbase Wallet, Trust Wallet, crypto.com DeFi, 1inch Wallet, WalletConnect, and more, across desktop and mobile. Mobile payments via QR codes or WalletConnect flows are fully supported.

8. No Setup Fees, Transparent Pay‑as‑You‑Go Pricing

Using DePay is free to start. For WooCommerce, merchants pay a standard transaction fee (approximately 1.5%). No monthly, recurring, or setup fees apply. This flexible pricing suits small businesses and scalability.

Integration & Setup

WooCommerce / WordPress Integration

• Install the DePay Payments plugin from the WooCommerce or WordPress plugin portal.

• Activate it and complete configuration via the admin menu. Enter your wallet address (either manually or by wallet connection), and define which tokens you wish to receive.

• Once saved, the payment widget appears during checkout. DePay automatically presents cost‑efficient payment options and handles settlement instantly.

Shopify & Custom Integration

• Shopify merchants can enable DePay to allow direct wallet payments to their store wallet. DePay seamlessly integrates with on‑site storefront checkout to deliver payment-routing and auto‑conversion functionality.

• For custom or standalone websites and applications, integration is achieved using DePay’s embeddable SDK: a simple script to initialize the widget, select configuration, and launch the payment flow.

Payment Links

• DePay also offers Payment Links (dynamic URLs or QR codes) that customers can click or scan to pay via wallet. Links are chain-aware and support route calculation and auto-conversion. Ideal for invoicing, donations, or off‑site e‑commerce.

Technical Architecture & Protocol Overview

Routing & Liquidity

DePay queries decentralized exchange liquidity across supported chains to compute optimal routing. Its V2/V3 implementation supports Uniswap V3, PancakeSwap V3, SpookySwap, Trader Joe v2.1, Honeyswap, and others. The system auto-switches networks if required, ensuring efficiency and reliability.

Secure, Refund‑Ready Smart Contracts

Payments flow via designated smart contract addresses that validate transaction integrity. If a relay fails or is maliciously altered, funds automatically revert to the payer, preserving protection. The design guards against tampering and ensures trustless execution.

Payment Validation & Transparency

DePay enables verification via wallets using compact transaction payloads. Payments can be independently validated, aligning with the ethos of “Don’t trust, verify.” This transparency builds trust for merchants and customers alike.

Benefits for Merchants

Instant Settlement

Funds arrive immediately in the merchant’s wallet: no delays, no holds, and no chargebacks. Cash‑flow is uninterrupted.

Broader Customer Reach

Customers can pay in any token their wallet supports, while DePay converts it on the fly into merchant‑preferred tokens. This flexibility improves conversion and accommodates global clientele.

Lower Costs & No Central Fees

DePay’s peer‑to‑peer architecture eliminates intermediaries and holds low platform fees. Auto‑conversion leverages DeFi liquidity at minimal cost.

Easy Integration & Scale

With embeddable widgets, managed plugins, and Payment Links, DePay removes integration friction. The platform scales easily across chains and stores.

Enhanced Security & Compliance

Because DePay is open‑source and trustless, there’s no risk of intermediary misappropriation. Funds are cryptographically secured, reducing compliance risk and liability.

Use Cases & Applications

• E‑commerce stores (WooCommerce, Shopify, WordPress): Embed checkout directly on-site with no payment redirect.

• SaaS & subscription services: Support recurring payments and streams using DePay tools.

• Donation platforms: Accept crypto gifts in almost any token via payment links.

• Token sales, merch drops, brand shops: Support pay-with-any‑token options with auto conversion.

• Mobile apps & Mini Apps: Especially World App integration offers seamless one‑click flow.

Conclusion

For businesses that want to accept cryptocurrency with more flexibility, lower risks, and a global reach, DePay is a strong decentralized payment gateway. Its unique design and user experience improvements, such as auto-conversion, smart routing, and one-click checkout, provide a modern choice compared to traditional centralized crypto payment providers. DePay’s open-source principles, chain-agnostic protocol, and simple integration options make it a good fit for businesses aiming for Web3 readiness.