{"data":{"slug":"killbill","name":"Kill Bill","tagline":"Apache-2.0 in-house subscriptions and payments, no % take-rate","category":"payments","categoryName":"Payments","url":"https://killbill.io","github":"https://github.com/killbill/killbill","pricing":"open-source","hook":"Kill Bill is the billing engine you run so nobody takes a cut of your revenue.","whatsGood":"Apache-2.0. Subscriptions, invoicing, payments, and plugins you host. Self-Hosted OSS is Free — no percentage take-rate. JVM stack, Kaui admin UI, plugin model. You keep the money-movement relationship.","theCatch":"JVM and ops-heavy. Aviate is the proprietary accelerator — not the Apache tree. Self-Hosted OSS Free; AWS Marketplace is ~$40/mo plus the AWS bill. No revenue tiles here because there is no % of revenue to quote.","verdict":"Apache-2.0 billing you run. Free until Aviate or the AMI; never a take-rate.","addedAt":"2026-09-03","featured":false,"domain":"Payments","subSpecialty":"Billing","capabilities":["billing","subscriptions"],"surfaces":["Self-host"],"ecosystem":["Multi-platform"],"licenseModel":"Apache-2.0","githubStars":5714},"related":[{"slug":"stripe-cli","name":"Stripe CLI","tagline":"Official Stripe terminal for webhooks, events, and API objects"},{"slug":"polar","name":"Polar","tagline":"Apache-2.0 merchant-of-record billing for indie and AI products"},{"slug":"hyperswitch","name":"Hyperswitch","tagline":"Apache-2.0 payment orchestrator you can self-host"},{"slug":"lago","name":"Lago","tagline":"AGPLv3 usage and entitlements metering you self-host"},{"slug":"btcpay-server","name":"BTCPay Server","tagline":"MIT self-hosted Bitcoin/LN, 0% fees to your wallet"}],"links":{"self":"/api/gems/killbill","html":"/gems/killbill","markdown":"/gems/killbill.md","category":"/api/gems?category=payments","categoryPage":"/stacks/payments"}}