payments

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 ⚡️

Open-Source Subscription Billing & Payments Platform

Payments for Ruby on Rails apps

Empower your hosting business with FOSSBilling, the free and open-source solution for efficient billing and client management.

Self-healing infrastructure for AI agent payments. 90.3% auto-recovery.