Openmeter

Openmeter is an open-source metering and billing platform designed for usage-based and hybrid pricing models. It provides a unified way to collect, aggregate, and expose usage data in real time, enabling teams to build accurate, transparent billing workflows and custom pricing arrangements. Delivered as a managed cloud service, Openmeter reduces the operational overhead of running metering infrastructure while retaining the flexibility of an open-source stack.

Key capabilities include high-volume event ingestion, real-time usage aggregation, and configurable usage metrics that can be mapped directly to pricing plans. Openmeter offers APIs and SDKs to integrate with applications, data pipelines, and existing billing systems, allowing teams to keep their current payment and invoicing providers while centralizing metering logic. It supports complex scenarios such as multi-tenant metering, tiered and volume pricing, and contract-specific entitlements. Built-in observability and auditability features help ensure accuracy, traceability, and compliance for financial reporting and customer disputes.