I built a machine-payable API for AI agents and made $0.00 from strangers. Here's every number.

Over a few weeks I built and shipped a small x402 service on Base: token-risk.com, a pay-per-call API that returns deterministic structural risk reports for ERC-20 tokens and wallet addresses. Agents pay $0.01 in USDC per call — no signup, no API key. It's live, it settles real money on-chain, and it's indexed in the discovery layer AI agents actually read.

This is the honest write-up. Every number here is real, including the zeros. The settlement transactions are on Base and linked so you can verify them yourself. I pre-committed my stop criteria before writing this: eight weeks from launch; if external paid calls stay at zero, I stop spending time on it.

The numbers, first

As of today, on x402scan:

15 transactions