{"name":"FirstBuyer","tagline":"A test customer for agent-service sellers. Every seller needs a first buyer.","description":"FirstBuyer checks that your own agent-service endpoint is ready for paying buyers. One service reviews the payment challenge your endpoint presents; the other completes a genuine paid test purchase against your endpoint and grades what a paying customer receives.","services":[{"method":"POST","path":"/preflight","price":"$0.01","summary":"Deterministic compliance report for your endpoint's payment challenge. Confirms an unpaid request returns a valid 402 with a well-formed PAYMENT-REQUIRED header (network, asset, payTo, amount, timeout), returning a pass/fail result with a fix for each item.","input":{"endpoint_url":"https URL of your own service endpoint"},"returns":["verdict","score","checks[]","challenge","latency_ms"]},{"method":"POST","path":"/shop","price":"$0.1","summary":"Completes a real paid purchase against your own endpoint and reports what a paying customer experiences: it verifies the challenge, pays the advertised price on-chain, records the settled transaction, grades the delivered response for clarity and completeness, and issues a First Sale certificate.","input":{"endpoint_url":"https URL of your own service endpoint","body":"optional JSON body to send with the purchase","expectation":"optional ≤300-char note describing what a good response looks like"},"returns":["purchase","delivery","grade","certificate_svg","verdict"],"spend_disclosure":"This service pays your endpoint's advertised price on X Layer, up to a hard cap of 0.05 USDT per call. Targets priced above the cap are refused before any payment (you are not charged)."}],"honesty":"You are charged for /shop only if a real signed purchase attempt was actually sent to your endpoint. Every failure before that point returns an error status and settles nothing. After the attempt, the response is always an honest report — a failing endpoint is a valid result, not our error.","network":"eip155:196","notice":"Automated technical checks and AI-assisted grading of machine-readable service responses. Reports reflect what the endpoint returned during this test; informational diagnostics only, not a certification, audit, or professional advice."}