The AI Agent Economy Needs Payment Rails — Here's What I Built

AI agent wallets on x402 can now pay for services with zero human intermediaries, thanks to Stripe's machine payment protocols and Google's AP2. This infrastructure is being built for autonomous AI commerce. A trading signal API was built to test this concept, allowing agents to pay $0.005 for momentum signals. The real bottleneck is discovery, but sub-cent micropayments change the economics entirely. This could lead to decentralized signal generation with Bittensor.