I've been building and running AI agents for a while now. They can research, write, generate, analyze, and delegate. But the moment I needed one to pay for something — a third-party API, a premium dataset, an inference endpoint — everything broke down. The agent stopped. Waited. Asked me for a card number, or a one-time password, or to "confirm" a $0.002 charge. Every single time. It's not just annoying. It fundamentally undermines what autonomous agents are supposed to be. That changed when I started using FluxA. The Problem Nobody Talks About: AI Agents Can't Transact We talk endlessly about reasoning capabilities, context windows, and tool use. But the moment an agent needs to pay for something, the entire "autonomous" premise collapses.…