Pay-per-call was built for humans clicking buttons...
Agents don't click. They iterate. Hundreds of calls per task, each one needing auth, pricing, settlement.
The model breaks down fast.
@AInalyst_ is layering MPP on top of x402 to fix this. Sessions replace single calls. Agents run continuous workflows without re-authorising every step. x402 handles settlement in the background.
The shift: you stop paying for raw API calls and start paying for structured intelligence output.
That's a different economic model entirely.
Is x402 infrastructure or just a payment rail?