Golang client for PayPal REST API
- hacktoberfest
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SHKeeper is a self-hosted and open-source cryptocurrency gateway payment processor. It's integrate with popular CMS, any e-commerce, your own code or product
- accept-crypto
- accept-crypto-payments
- crypto
- crypto-gateway
Payum offers everything you need to work with payments. From simplest use cases to very advanced ones.
Double-entry accounting & ERP for the web
- postgresql
- accounting
- billing
- web-app
ACH implements a reader, writer, and validator for Automated Clearing House (ACH) files. The HTTP server is available in a Docker image and the Go package is available.
- ach
- automated-clearing-house
- money
- golang-library
A complete payment library for Elixir and Phoenix Framework
- elixir
- payment
- gringotts
- payment-gateway
Braintree Ruby library
- braintree
- ruby
- payments
Flutter Plugin for Square In-App Payments SDK
Self-hosted restaurant POS with tables, kitchen display, reservations, QR ordering, loyalty and local-network operation.
- casaos
- docker
- gst
- india
Lightweight Bitcoin payment processor written in easily deployable Python. Self custody donations and payments on-chain & Lightning network, directly connected to your own Bitcoin node! No middleman/custodian.
- bitcoin
- bitcoin-payments
- donation-button
- woocommerce
A libGDX cross-platform API for InApp purchasing.
Build, Measure and Grow iOS subscription business
- ios
- in-app-purchase
- in-app-purchases
- in-app-receipt
Stripe library for Vapor
A payment processing library for Elixir
SaaS boilerplate/starter-kit in Go+React with Stripe integration, multi-tenant support, comprehensive features and AI-agent ready
- ai-agents
- go
- golang
- mcp-server
Your friendly Bitcoin Lightning ⚡ payment page ⚡
- bitcoin
- lightning-network
- lightning
- lnd
Go middleware for monetizing your API on a per-request basis with Bitcoin and Lightning ⚡️
- go
- golang
- middleware
- micropayments
💸 Crypto Payments straight to your wallet. DePay simplifies Web3 integration for developers, harnessing DeFi to accept any token effortlessly. Integrate frictionless, real-time token conversion with sleek, customizable widgets designed for seamless user experience.
- blockchain
- payment
- widgets
- react
Adyen API Library for .NET
- adyen
- payments
- api-client
- api-library
Payment Bundle providing access to the PayPal API
Frames iOS: making native card payments simple
- payment
- credit-card
- validation
- checkout
QR code generator (ASCII & PNG) for SEPA payments
ColdFusion payment processing library makes plumbing e-commerce apps easy. Charging credit cards has never been easier. Inspired by Ruby's ActiveMerchant.
- cfml
- coldfusion
Flare is a lightweight, developer-friendly Swift framework that simplifies working with in-app purchases. It provides a clean, unified API over StoreKit and StoreKit 2, includes async/await-ready workflows, and offers built-in UI components for a seamless integration experience.
- iap
- in-app-purchases
- macos
- swift