#Payments
Showing 60 of 110 repositories tagged #payments, ranked by stars
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
Shardeum is an EVM based autoscaling blockchain
Saleor Core: the high performance, composable, headless commerce API.
Open Source Metering and Usage Based Billing API ⭐️ Consumption tracking, Subscription management, Pricing iterations, Payment orchestration & Revenue analytics
Polar — A billing platform for the intelligence era
Online Accounting Software
A source-available invoice, quote, project and time-tracking app built with Laravel
Lightning Network Daemon ⚡️
The user infrastructure platform. You choose the frontend, backend, and database. Hexclave handles everything else.
How to implement Stripe without going mad
开源优雅的跨平台收款网关 GM Pay(formerly known as EPUSDT)
Mastering the Lightning Network (LN)
Raiden Network
dj-stripe automatically syncs your Stripe Data to your local database as pre-implemented Django Models allowing you to use the Django ORM, in your code, to work with the data making it easier and faster.
Open source, zero webhooks payment provider
Empower your hosting business with FOSSBilling, the free and open-source solution for efficient billing and client management.
Accept Payments with Apple Pay and Android Pay using the Payment Request API.
React Native library for Stripe.
A mobile Bitcoin wallet fit for the gods. ⚡️ Est. 563345
A scala implementation of the Lightning Network.
Open-source Pricing and Billing Infrastructure 🚀 Subscription management, Invoicing, Pricing, Usage-based billing, Cost limiting, Grandfathering, Experiments, Revenue analytics & Actionable insights
The billing framework for TypeScript. Products in code, handles Stripe, webhooks, and usage state, runs in your app.
Bitcart is a free and open-source self-hosted payment processor for BTC, LTC, BCH, XMR, ETH, TRX, USDT and more
Open-source subscription management & billing automation system
BoxBilling - Open source billing and client management software
Self-healing infrastructure for AI agent payments. 90.3% auto-recovery.
Simple API for banking routines using a Clean Architecture in Golang :credit_card: :moneybag: :money_with_wings:
Sample on-demand platform built on Stripe: Connect onboarding for pilots, iOS app for passengers to request rides.
Authentication & payments on the web
A Vue 2 component collection for Stripe.js
Specifications for Interledger and related protocols
x402 Ecosystem Explorer
A curated collection of open source fintech libraries and resources.
Flutter Plugin for Square In-App Payments SDK
A pirate-theme bootcamp for getting up to speed on Solana programming!
Open-source Stripe Connect alternative. ~$0.002 payout fees. Identical API to Stripe. Instant global USDC payouts. Self-hosted.
Starting point for on-boarding and contribution documentation for mojaloop
All you need account for authentication and payments on the web.
Python client for the YooMoney (ex-Yandex.Money) API — sync & async, Pydantic models, type-safe
Open-source MCP servers for Latin American commerce — Pix, NF-e, banking, fiscal, logistics, and messaging across Brazil, Mexico, Argentina, Colombia, Chile, and Peru. MIT, on npm.
An Android wallet for the Lightning Network
Opensource FinTech standards & payment provider data
Hyperledger Quilt - An implementation of the Interledger Protocol
Inspired by the need for freedom in app monetization. Thanks to the open-source community for their invaluable contributions to software freedom.
💸💳The package allows you accept payment using paystack and guess what, it doesn't require linking! just install and begin to use 🚀
🔑 Keagate is an open-source, high-performance alternative to popular cryptocurrency payment gateways such as Coinbase Commerce, CoinGate, BitPay, NOWPayments, CoinRemitter, CoinsPaid and more.
Open-source core banking platform — 61 DDD domains with event sourcing, CQRS, and a schema-first GraphQL API. Multi-asset accounts, exchange, lending, compliance, x402/MPP machine payments, and a non-custodial wallet backend. Laravel 12 / PHP 8.4. Reference implementation: the GCU basket currency.
Electronic Payment System for Events using NFC Wristbands
Curated list of awesome Fintech startup companies
Lightweight, easy to integrate and use React native library for Stripe payments (using Payment Intents) compliant with SCA (strong customer authentication)
Solana Pay for Commerce Platforms
An extendable Django app for building modular Stellar services
Python bitcoin library
Golang wrapper for Mollie's REST API with full resource coverage.
💰 React Native implementation for Stripe.js Checkout.
Java library that can parse magnetic stripes from a bank issued credit card.
Java library that can provide details of a bank issued credit card number
Add card payments from Zettle to your own app
AcquireMock is a full-featured mock payment gateway built for reliable testing of any e-commerce integration. It simulates real payment flows with OTP verification, HMAC-signed webhooks, and a modern user interface.
Payment gateway enabling automated ACH operations in a distributed and fault tolerant way.