Ask IH: Paid API owners how do you count the number of request to your API?

Hello hackers, I want to charge customer of my paid API by the count of calls. Does anyone knows out-of-the box solution? Or should I write everything from scratch?

P.S. I have tried Stripe metered billing, but it's doesn't work for me out-of-the-box, as my API can have up to 1000 calls per minute and Stripe return code 409 (too many requests)