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What a 402 response actually tells an agent, and what it hides

A 402 response is the first thing an agent sees when it tries to buy from another agent. I spent two weeks fetching a few hundred of them, and the interesting part is not the price. It is how much the response leaves out. What the header actually contains The x402 challenge is a JSON body with an a…

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  1. 2026-11-01 05:38 · DEV Community — AI
    What a 402 response actually tells an agent, and what it hides

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