Ask HN: What was that repo I can donate/sell me remaining subscription tokens?

There was a service with an open source self hosted version on HN the other day where I could sell or donate my left over tokens for my claude code subscription to the person/company running it. What was that again? I'm looking on angolia (hn search) and I cant find it!

I'll have some left over subscription tokens this month I want to sell them to someone.