Companies in the category 'Billing'
These are companies that provide open source software for managing customer billing, invoicing, and subscription services.
Stripe for AI Companies
Autumn is an open-source platform that provides a flexible and easy way for AI and SaaS companies to manage their pricing and billing infrastructure. It acts as a layer between Stripe and applications, handling subscriptions, credit systems, usage-based models, and custom plans without requiring complex webhook management or manual billing flows.
Open-source billing & payment platform
Kill Bill is an open-source subscription billing and payment platform designed for businesses that need flexible, scalable billing solutions. The platform provides comprehensive billing management, payment processing, and subscription lifecycle management with support for complex billing scenarios and multiple payment gateways.
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Open-source SaaS billing platform
Lumen Payments is an open-source billing and entitlements platform that enables SaaS companies to implement complex pricing models, usage-based billing, and feature access control in minutes. The platform provides a feature-first architecture that abstracts plan-based logic, real-time usage tracking, and built-in React components for pricing tables, and integrates with payment processors including Stripe and Dodo Payments. Lumen is backed by Y Combinator (W24) and is operated by Pretzel AI GmbH, headquartered in Berlin, Germany.
Open-source usage metering for AI & DevTools
OpenMeter provides flexible Billing and Metering for AI and DevTool companies. It's an open-source real-time usage metering solution to power SaaS, Billing, and IoT use cases.
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Polar is a payment infrastructure platform for SaaS and digital products that provides usage-based billing, flexible pricing models, and automated benefit delivery. The company builds an open-source monetization platform designed to empower developers and early-stage startups to scale their businesses without operational overhead.
Open-source metering and billing API
Open Source Metering and Usage Based Billing API. Lago helps companies monetize and price seamlessly, from metering and billing to prepayments, commitments, discounts, and invoicing. It is an open-source alternative to Stripe, with a laser focus on transparency, metering, developer experience, and composability.