OpenMeter is an open-source metering and billing platform from the OpenMeter project. Its upstream repository and docs position it around a very specific job-to-be-done: ingest usage events in real time, aggregate them into meters, and connect those measurements to billing, entitlements, prepaid credits, notifications, and customer reporting. That makes it highly relevant for API products, AI products, and developer tooling businesses that need reliable usage accounting instead of ad hoc spreadsheet logic.

The project supports event ingestion through an API using CloudEvents, flexible aggregations such as SUM and COUNT, and downstream workflows for plans, add-ons, invoice generation, and threshold-based notifications. The README also calls out first-class support for tracking AI token usage and model-specific costs, which gives this listing practical value for agent builders and platform teams working on usage-based pricing. The self-hosted quickstart uses Docker Compose, and the docs cover production deployment through Kubernetes and a Helm chart.

For ASE, OpenMeter maps cleanly to skills that help users instrument products for billing-aware analytics, stand up a metering backend, or document how to wire application events into a pricing and entitlement layer. The upstream project has an active GitHub repository, releases, Apache 2.0 licensing, and current docs, so it clears the intake gate for verified metadata publication.