List of Merchant Payment Gateway companies in Web3 (2026)

Keychain is a merchant payment gateway that lets businesses accept pay-by-bank and USDC payments at a flat 1% fee. It runs alongside existing point-of-sale systems, settles the same day, and includes customer rewards without monthly or per-transaction fees.

A mobile payment platform that accepts cryptocurrency and fiat payments for restaurant and retail purchases, distributing USDC rewards to consumers while facilitating merchant payment processing.

Decal is a merchant payment gateway that enables payment acceptance on any device and includes customer loyalty features. Users can take payments quickly and reward customers without complex setup or high fees.

The Network Bank is a full-reserve bank operating in a special economic zone that provides multi-currency accounts, lending, card issuance, and foreign exchange services for businesses and individuals. It also offers a merchant payment gateway for accepting payments and open APIs that let other companies embed banking, card issuance, and payment features into their own platforms. The bank supports self-custody digital wallet linking, enabling account holders to interact with their own digital assets alongside traditional balances. Its services are delivered through a unified digital platform covering account management, payments, and card operations.

NHN KCP Payment Gateway is a merchant payment processing platform covering online and offline transaction channels through a unified integration layer. Online methods include credit cards, bank transfers, virtual accounts, mobile phone billing, gift vouchers, recurring billing, and ARS-based payment. Offline processing routes card authorizations to issuers via POS terminals, kiosks, and card readers installed at merchant locations. Supporting services include cash receipt reporting to the National Tax Service, escrow-based payment holding, and mobile phone identity verification without resident registration numbers.

RaiPOS is a software-based payment acceptance application that turns Android mobile phones into contactless payment terminals for merchants. It uses the phone's built-in NFC hardware and a software PIN entry function to accept card payments from Visa and Mastercard and digital wallets such as Apple Pay and Google Pay, with features including transaction lists, refunds, tipping, and biometric login. Merchants across several RBI network countries use it as an alternative to dedicated point-of-sale hardware.

Estia Payments Gateway is a merchant payment platform integrating with retailer POS terminals and online store checkout systems to accept multi-currency payments. It provides a consumer-facing mobile wallet supporting QR code, NFC, and online payment channels. The system includes real-time transaction analytics, reporting dashboards, and a loyalty rewards program that returns cashback on consumer purchases.