Kill Bill in AI answers

Kill Bill is an open-source billing and payments platform that handles subscription management, usage-based metering, wallets, catalog and pricing, and tax/compliance, with a plugin system for integrations. It includes Kaui, a web-based admin UI for subscription management, and Aviate, an enterprise accelerator delivering production-ready, fixed-price cloud hosting on top of the open-source core with zero vendor lock-in. The platform supports diverse models (subscription, usage-based, tokens) at scale, deployable on your own infrastructure with fixed pricing and no revenue-based fees, suitable for SaaS, marketplaces, fintech, and enterprise deployments.