UniBee
Open-source, self-hostable subscription billing with usage metering, entitlements and reporting, plus managed cloud tiers
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unibee.devAbout UniBee
UniBee is subscription billing and recurring-payments infrastructure for SaaS companies, covering plan creation, subscription management, usage metering, entitlements and financial reporting in one system. The reason it belongs in a developer catalogue rather than a finance one is that it is open source and self-hostable: the vendor publishes the code on GitHub with API reference and documentation, and the $0 tier is the self-hosted path rather than a crippled free trial of the cloud product. That gives a team an exit from a hosted billing vendor without rewriting its entitlement logic, which is the usual reason billing migrations stall. Usage metering and entitlements are treated as first-class rather than bolted onto invoicing, so a product priced on consumption can express its plans in the billing system instead of reconciling meters afterwards. The paid cloud tiers differ mainly by how many billing administrators they support and how much operational control and reporting depth is included, with custom deployment reserved for the top of the range. Self-hosting is explicitly documented as manual setup with community-only support, which is an honest statement of the trade-off rather than a hidden one. The audience is engineering teams building a subscription product who want billing they can read.
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