What tools are you using to keep a check on OpenAI bills when you have multiple customer accounts?

I'm currently leveraging a combination of cloud cost management solutions like Cloudability and CloudHealth, along with custom APIs and scripting to automatically track, allocate, and manage OpenAI usage costs across multiple customer accounts, ensuring optimal budgeting and financial efficiency!

How are your customers interacting with your tool/OpenAI token? Do you really just want logs on usage or actual cost each customer costs you?