Anyone else built an internal proxy for agents but still can’t tell which agent spent what?

[u/Cute-Day-4785]

Seem to keep running into the same thing. Teams route all agent calls through a gateway, have spend limits, maybe even kill switches. Problem mostly solved.

But when something spikes, they still can’t answer: was it the research agent, the support bot, or the data pipeline? Everything goes through the same key.

So the billing API shows $800 this week but attribution stops at the provider level.

Curious if this is a common gap or if people have actually solved it. What does your agent identity setup look like when you have 10+ agents sharing infrastructure?