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Open Source Payment Infrastructure Tools using Golang

A curated collection of the best open source infrastructure for integrating and managing payment processing. using Golang.

Transform complex usage data into accurate, real-time billing
  • Stars

    10,748
  • Last commit

    10 hours ago
  • License

    AGPL-3.0
Open-source billing system that handles metering, usage-based pricing, and invoicing at scale. Perfect for AI, cloud, and API companies needing flexible monetization.

Open Source Alternative to:

Open source financial infrastructure for modern businesses
  • Stars

    533
  • Last commit

    5 days ago
  • License

    MIT
Build custom financial flows and integrate with any provider using Formance's agnostic platform

Open Source Alternative to: