Kill Bill
8.3#1 in subscription billing softwareFrom $9,999 a monthFree planWebAPILinuxmacOS
VisitKill Bill vs Natural
What both publish
| Fact | Kill Bill | Natural |
|---|---|---|
| Compliance | The maker says Kill Bill provides technical controls intended to help enterprises meet SOC 2 and PCI-DSS requirements. | Natural says it automates compliance requirements and provides alerts, a full ledger, and real-time webhooks. |
| Integrations | The maker lists Stripe, Adyen, PayPal, Braintree, GoCardless, Coinbase, Avalara, and Vertex among its integrations. | The homepage shows setup paths for Claude, Codex, an SDK, CLI, and API, including an MCP endpoint. |
| Product | Kill Bill is an open-source, programmable billing platform with APIs for pricing models, subscriptions, invoices, and payment gateway integrations. | Natural provides agent-first financial infrastructure for wallets, payments, cards, processing, and billing. |
Kill Bill plans
- Kill Bill open sourceFree
- Self-Hosted Open SourceFree
- Aviate$9,999 a month
- AWS Marketplace—
- Hosted Platform (ChaChing)Priced on request
Natural plans
- BusinessFree
- ConsumerFree
- EnterprisePriced on request
Pick Kill Bill if…
Kill Bill may suit online businesses and teams that need customizable subscription or usage-based billing. It is also described for startups and growth-stage companies, particularly those prepared to operate a self-hosted deployment.
Pick Natural if…
Natural suits agent builders and platforms needing wallet and payment infrastructure through web or API access. It also fits teams that need agent permissions, monitoring, compliance tools, and dispute workflows.