WHICH ENDPOINTS CONTRADICT THEIR OWN LISTING: they ask to be paid at an address the catalogue entry they published does not name. This is the one reading here that cannot be reproduced from anywhere else — an uptime checker sees a live endpoint and a catalogue reader sees a published payee, and only holding BOTH shows the contradiction. A disagreement is between two statements by the SAME party, so it is theirs to explain and never ours to resolve, and it is NOT evidence of fraud: a seller may have moved their payee and not relisted. Measured only over endpoints we have knocked on, which is our reach and not the catalogue; comparable is the denominator, because an endpoint that names no payee cannot disagree and is counted neither way. THE COUNTS ARE FREE AND THE LIST IS NOT: items comes back NULL without a plan rather than empty, since an empty list would say we found none. Any SINGLE endpoint is free — test_purchase and list_x402_endpoints both carry its own reading — because that one is reproducible in two requests and because withholding something that can cost a buyer money is not a thing we do.