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I'm looking for a way to wrap up a cloudrun API that does an automated analysis behind a paywall, and I've never done any of this kind of billing etc.

Has anyone used Lago or do they have anything to say on what a good or recommended way to do this is? Ideally I want to be able to provide 'tiers' where a customer buys a minimum number of monthly calls to the API which are use it or lose it, and then they can surpass this number and are billed in addition. Lago seems like a good solution for this, but I'm wondering if there is a more straightforward, or more common way of doing this.

Thanks.