juspay / hyperswitch

Open source, composable payments platform | PCI compliant | SaaS and Self-host options | Enables connectivity to multiple payment, payout, fraud, vault and tokenization providers | Uplifts authorization with intelligent routing and revenue recovery | Reduce payment processing costs with cost observability | Reduces payment ops with reconciliation

juspay / hyperswitch-prism

One library | Many payment processors | Scale to multiple processors with few lines of code.

xiaodou-official / xiaodou-open-platform

个人支付接口｜个人网站/个人开发者/个人用户接入支付宝+微信聚合支付接口 API：个人/小微无需营业执照，卡密/虚拟商品收款，持牌清算、次日中午前到账（含节假日），兼容易支付。Alipay/WeChat Pay API for individual developers in China; Epay-compatible; licensed settlement.

alhifnywahid / merchantid

Unofficial zero-dependency TypeScript toolkit for Indonesian merchants: turns a static QRIS into unique per-order dynamic QRIS and reconciles settlement from GoPay (GoBiz) and ShopeePay merchant transaction feeds.