There are 3 repositories under unionpay topic.
一个基于 Yii2 高级框架的快速开发应用引擎
The collection and reconstruction of the payment SDK supports Alipay, WeChat payment and UnionPay payment.
UnionPay driver for the Omnipay PHP payment processing library
API Specification documents for merchants
NihaoPay plugin for WooCommerce
基于YMP框架实现的第三方支付接入模块,包括支付宝、微信支付、银联支付、京东支付、百度钱包和QQ钱包等;
wordpress woocommerce 银联在线支付插件
Xamarin Binding Library - Braintree iOS SDK
基于c#的简单支付sdk,集成了目前较常见的支付通道。仅包含支付、支付回调、查询支付结果、退款等功能
超赢聚合支付API在线文档-公开版【转Gitee】
ecommerce GraphQL API
NihaoPay plugin for Magento 1.X
Agnostic library to integrate Yedpay Api