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.

Source: [Dev.to](https://dev.to/baolongspx6900/i-built-a-machine-payable-api-for-ai-agents-and-made-000-from-strangers-heres-every-number-3g5k)

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