[anze3db]

That makes sense if you already have a pub/sub service running. But if you have a pub/sub service running, you probably also have a service that can count events so you won't need ratelimitapi.com.

In this case, I'm guessing the ability to configure the rate limits on your end would be useful. But again, I'm not your potential customer, so don't take this as customer feedback/feature request. I'm just thinking out loud :)

[flurly]

Touche! I guess we'll see if it's an issue in practice. My intuition is people won't change durations that frequently in practice. eg. OpenAI has a limit of 40 messages per 3 hours and hasn't changed that for months.