Overview
OpenMeter provides a real-time event based usage metering to aggregate consumption over time precisely. It also provides deduplication and flexible usage attribution of events and consumers to billable customers.
Get started by Creating a Meter.

Use Cases
OpenMeter metering can help to track various usage:
| Use Case | Description |
|---|---|
| AI Tokens | Metering AI Tokens consumed by LLMs and AI agents. |
| API Requests | Metering API Requests count and duration. |
| Compute | Metering runtime of VMs, CPUs, GPUs, etc. |
| Seats | Metering number of unique users over sessions. |
Common examples
Check out the common examples guide to learn more about how to setup your meters.
Core Entities
Metering is built around the following core entities:
| Entity | Description |
|---|---|
| Meter | Aggregates usage of a specific subject over time. |
| Event | Represents a single usage event. |
| Subject | Entities that consume metered resources. e.g. user, device, etc. |
| Customer | Billable entities that pay for consumption. e.g. customer, company, etc. |
Choosing the right metering approach
Read more about metering on our blog: Choosing the right metering approach.
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