2026-09-08
I built Aurora Meter because usage billing in Phoenix shouldn't be this annoying
Today I’m launching Aurora Meter.
It’s a usage metering, entitlements and billing library built specifically for Elixir and Phoenix.
The idea came from a pretty simple problem: modern SaaS apps increasingly need to track things like AI generations, API calls, storage or exports, then enforce limits and eventually bill customers for that usage.
Phoenix is extremely good at building this kind of software, but there wasn’t a solution I really wanted to use for this particular part of the stack.
So I built one.
Aurora Meter lets you define plans, track usage, enforce quotas and expose live usage inside your application. The core is completely free and MIT licensed.
For teams that want to take it further, Aurora Meter Pro adds Stripe Billing integration, hosted dashboards, historical usage, alerts and reconciliation.
It’s still early, and I’m sure it’ll evolve considerably as people start using it in real applications.
But it’s finally at the point where I’m happy to put it out into the world.