22 projects
BTCPay Server
BTCPay Server is a self-hosted, open-source cryptocurrency payment processor that enables merchants and individuals to receive Bitcoin and other cryptocurrency payments directly, without intermediaries. It provides a secure, private, censorship-resistant alternative to third-party payment processors, with features including point-of-sale, invoicing, and wallet management.
1,834
240
$8.6M
Hyperswitch
An open source payments switch written in Rust to make payments fast, reliable and affordable
1,403
174
$58M
WooCommerce for Android
WooCommerce for Android is a mobile application that allows store owners to manage their WooCommerce-powered online stores from their Android devices. It enables users to track sales, manage orders, view store analytics, and receive notifications about new orders and customer activity.
367
27
$32M
Agent Payments Protocol (AP2)
The Agent Payments Protocol (AP2) is a standardized protocol for enabling secure and interoperable digital payments between autonomous agents and services, developed by Google's agentic commerce initiative.
88
20
$333K
Hyperledger Quilt
Quilt is a Java implementation of the Interledger protocol suite that enables seamless payments across payment networks. It provides libraries and tools for building applications that can participate in the Interledger network, supporting cross-ledger transactions and interoperability between different payment systems.
71
22
$1.6M
Active Merchant
Active Merchant is a simple payment abstraction library extracted from Shopify. The aim of the project is to feel natural to Ruby users and to abstract as many parts as possible away from the user to offer a consistent interface across all supported gateways.
Adyen Payment plugin for Magento2
Adyen Payment plugin for Magento2
Braintree iOS SDK
Braintree SDK for iOS
Cashier
Laravel Cashier provides an expressive, fluent interface to Stripe's subscription billing services.
Mollie API Client
Mollie API client for PHP
PolarSource
An open source Merchant of Record. Sell SaaS and digital products in minutes.
Stripe .NET Library
Stripe.net is a sync/async .NET 4.6.1+ client, and a portable class library for stripe.com.
Stripe Android SDK
Stripe Android SDK
Stripe Go Library
Go library for the Stripe API.
Stripe PHP Library
PHP library for the Stripe API.
Stripe Ruby Library
Ruby library for the Stripe API.
Stripe iOS SDK
Stripe iOS SDK
WooCommerce Payments
Accept payments via credit card. Manage transactions within WordPress.
stripe-java
Java library for the Stripe API.
stripe-node
Node.js library for the Stripe API.