Pay3 provides the transactional infrastructure that powers a wide range of businesses e-commerce, travel, gaming, and digital services, helping them seamlessly onboard users and accept payments globally. We enable enterprises to accept 

fiat payments, digital currencies, cryptocurrencies, and stablecoins

 across mobile, web, and POS, ensuring smooth operations across all channels.

Our platform supports a variety of use cases, including 

card and bank-based fiat payments, online checkout solutions, digital goods, remittances, on/off-ramps, and in-game purchases

Pay3’s solutions enable companies to launch and scale rapidly, offering a secure, cost-efficient, and reliable alternative to building and maintaining in-house payment infrastructure across both 

Overview

FAQ's

Pay3 Document V2

Onboarding

Crypto Checkout Quick Start

Crypto Payout Server-Side API

JS SDK Quick Start

Fiat Payout Server-Side API

Getting Started

Initialize using npm

Initialize using script tag

Transactions

Event Listeners

Callback URL

Pay3 Javascript SDK

Initialize

Pay3 Unity Integration

Pay3 React Native SDK

Pay3 Android SDK

Generate Payment Links

End User Flow - Fiat Payin

End User Flow - Fiat Payout

End User Flow - Crypto Checkout

End User Flow - Multi Option Crypto Checkout

End User Flow - Crypto Payouts

End User Flow - Subscriptions

Webhooks

Status Reference

Access Token

Payment Methods

Create Fiat Checkout Order

Create Fiat Payout Order

Execute Fiat Payout Order

Create Crypto Checkout Order

Create Crypto Payout Order

Execute Crypto Payout Order

Get Fiat Order Details

Get Fiat Order List

Get Crypto Order Details

Create Crypto Refund

Create Refund

Get Refund Details

Get balance

Get Webhook

Simulate Webhooks

Update Your Webhook

Postman API Collection

API Documentation

SDK Errors

Pay3-EasySign

Pay3-Pay