Build & Earn
Build your first paid agent service
One route, one schema, one exact price, one 402, one deterministic result.
Start with Hello x402 in this repository, not a platform rewrite. Unpaid requests return a v2 challenge; paid requests echo a bounded text payload.
If you cannot describe the buyer outcome in one sentence, stop. Do not add a marketplace, a token, or a landing-page funnel first.