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Payment Infrastructure

Browse curated open source projects in this category.

6 projects
Hyperswitch icon

Hyperswitch

Open

A unified payment infrastructure that connects multiple payment processors through a single API integration, enabling global payment processing

15/05/2026
4,682
42,697
Polar icon

Polar

Open

Comprehensive payment solution with built-in tax handling, automated benefits, and seamless integrations for digital product and SaaS businesses.

15/05/2026
714
9,847
Lago icon

Lago

Open

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

15/05/2026
603
9,670
Gumroad icon

Gumroad

Open

A digital marketplace platform where creators can sell digital products, from courses to software, with built-in payment processing and content delivery.

15/05/2026
1,917
9,081
Paymenter icon

Paymenter

Open

Automate subscriptions and manage payments with a flexible, open-source billing system designed specifically for hosting providers.

15/05/2026
376
1,708
Formance icon

Formance

Open

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

31/03/2026
65
507
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