OpenMeter provides real-time, event-based usage metering that aggregates consumption precisely over time. It also provides deduplication and flexible usage attribution of events and consumers to billable customers.

Get started by Creating a Meter.

Metering and usage attribution

#Use Cases

OpenMeter metering can help you track various types of 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 set up 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	Key in usage events identifying the consumer. e.g. user ID, device ID.
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.

Overview

#Use Cases

#Core Entities