Cheddar

Most everyone referred to us as just ‘Cheddar’ already, so we decided to remove the ‘getter’ and make it official with a new domain name.

https://www.getcheddar.com/blog/cheddar-sans-getter/

We originally improved and maintained Cheddar at a healthy clip, but the opportunity was there for something bigger.

Cheddar's founders saw countless businesses spend days or weeks building their own billing system, and we wanted to get the word out that Cheddar's usage-based billing API could help you do it in less than a day while also setting you up for easy pricing iterations in the future.

http://www.insideindianabusiness.com/story/36130839/cheddar-lands-some-cash-of-its-own-bloomington-cheddargetter-tech-seed-round-vc-venture-capital-funding-mike-trotzke

SproutBox, a hybrid VC firm and developer shop, made it's internal billing library into an API because it realized other companies spent too much time building and rebuilding billing systems just like them.