{"board":"x402 listing drift","free":true,"generated_at":"2026-09-01T19:00:36.175Z","window":{"observations_held":62,"capacity":200,"shown":50,"oldest":"2026-09-01T08:10:36.501Z","newest":"2026-09-01T18:56:57.708Z","process_started_at":"2026-09-01T08:10:26.642Z","note":"The window starts at process_started_at: this board lives in memory and does not survive a restart. An empty or short window means we restarted recently, not that drift stopped happening."},"by_status":{"matches":62},"own_listings":{"observations":62,"by_status":{"matches":62},"note":"Our own endpoints, named. The price our own catalogue entry advertises against the price our own live 402 states. We publish these because the defect this check reports was measured on our own surface first, and because the only listing we can fairly name is ours."},"third_party_listings":{"observations":0,"by_status":{},"note":"Counts and price pairs only. The URLs callers ask about are never stored or published: what a buyer checks is their work, not our shop window. No seller is named here, and no verdict is attached to a name -- a status is an observation of one check at one moment, not a judgement about a service."},"rows":[{"at":"2026-09-01T09:47:56.065Z","scope":"own","resource":"https://api402x.com/echo","catalogue_says":"$0.001","live_402_says":"$0.001","live_http_status":402,"status":"matches"},{"at":"2026-09-01T09:47:56.065Z","scope":"own","resource":"https://api402x.com/x402-listing-drift-check","catalogue_says":"$0.002","live_402_says":"$0.002","live_http_status":402,"status":"matches"},{"at":"2026-09-01T10:00:24.511Z","scope":"own","resource":"https://api402x.com/echo","catalogue_says":"$0.001","live_402_says":"$0.001","live_http_status":402,"status":"matches"},{"at":"2026-09-01T10:00:24.511Z","scope":"own","resource":"https://api402x.com/x402-listing-drift-check","catalogue_says":"$0.002","live_402_says":"$0.002","live_http_status":402,"status":"matches"},{"at":"2026-09-01T10:47:49.534Z","scope":"own","resource":"https://api402x.com/echo","catalogue_says":"$0.001","live_402_says":"$0.001","live_http_status":402,"status":"matches"},{"at":"2026-09-01T10:47:49.534Z","scope":"own","resource":"https://api402x.com/x402-listing-drift-check","catalogue_says":"$0.002","live_402_says":"$0.002","live_http_status":402,"status":"matches"},{"at":"2026-09-01T11:00:24.361Z","scope":"own","resource":"https://api402x.com/echo","catalogue_says":"$0.001","live_402_says":"$0.001","live_http_status":402,"status":"matches"},{"at":"2026-09-01T11:00:24.361Z","scope":"own","resource":"https://api402x.com/x402-listing-drift-check","catalogue_says":"$0.002","live_402_says":"$0.002","live_http_status":402,"status":"matches"},{"at":"2026-09-01T12:47:50.382Z","scope":"own","resource":"https://api402x.com/echo","catalogue_says":"$0.001","live_402_says":"$0.001","live_http_status":402,"status":"matches"},{"at":"2026-09-01T12:47:50.382Z","scope":"own","resource":"https://api402x.com/x402-listing-drift-check","catalogue_says":"$0.002","live_402_says":"$0.002","live_http_status":402,"status":"matches"},{"at":"2026-09-01T13:00:29.979Z","scope":"own","resource":"https://api402x.com/echo","catalogue_says":"$0.001","live_402_says":"$0.001","live_http_status":402,"status":"matches"},{"at":"2026-09-01T13:00:29.979Z","scope":"own","resource":"https://api402x.com/x402-listing-drift-check","catalogue_says":"$0.002","live_402_says":"$0.002","live_http_status":402,"status":"matches"},{"at":"2026-09-01T13:17:51.819Z","scope":"own","resource":"https://api402x.com/echo","catalogue_says":"$0.001","live_402_says":"$0.001","live_http_status":402,"status":"matches"},{"at":"2026-09-01T13:17:51.819Z","scope":"own","resource":"https://api402x.com/x402-listing-drift-check","catalogue_says":"$0.002","live_402_says":"$0.002","live_http_status":402,"status":"matches"},{"at":"2026-09-01T14:00:09.498Z","scope":"own","resource":"https://api402x.com/echo","catalogue_says":"$0.001","live_402_says":"$0.001","live_http_status":402,"status":"matches"},{"at":"2026-09-01T14:00:09.498Z","scope":"own","resource":"https://api402x.com/x402-listing-drift-check","catalogue_says":"$0.002","live_402_says":"$0.002","live_http_status":402,"status":"matches"},{"at":"2026-09-01T14:23:10.569Z","scope":"own","resource":"https://api402x.com/echo","catalogue_says":"$0.001","live_402_says":"$0.001","live_http_status":402,"status":"matches"},{"at":"2026-09-01T14:23:10.569Z","scope":"own","resource":"https://api402x.com/x402-listing-drift-check","catalogue_says":"$0.002","live_402_says":"$0.002","live_http_status":402,"status":"matches"},{"at":"2026-09-01T14:39:54.445Z","scope":"own","resource":"https://api402x.com/echo","catalogue_says":"$0.001","live_402_says":"$0.001","live_http_status":402,"status":"matches"},{"at":"2026-09-01T14:39:54.445Z","scope":"own","resource":"https://api402x.com/x402-listing-drift-check","catalogue_says":"$0.002","live_402_says":"$0.002","live_http_status":402,"status":"matches"},{"at":"2026-09-01T14:51:36.478Z","scope":"own","resource":"https://api402x.com/echo","catalogue_says":"$0.001","live_402_says":"$0.001","live_http_status":402,"status":"matches"},{"at":"2026-09-01T14:51:36.478Z","scope":"own","resource":"https://api402x.com/x402-listing-drift-check","catalogue_says":"$0.002","live_402_says":"$0.002","live_http_status":402,"status":"matches"},{"at":"2026-09-01T15:09:53.348Z","scope":"own","resource":"https://api402x.com/echo","catalogue_says":"$0.001","live_402_says":"$0.001","live_http_status":402,"status":"matches"},{"at":"2026-09-01T15:09:53.348Z","scope":"own","resource":"https://api402x.com/x402-listing-drift-check","catalogue_says":"$0.002","live_402_says":"$0.002","live_http_status":402,"status":"matches"},{"at":"2026-09-01T15:21:20.884Z","scope":"own","resource":"https://api402x.com/echo","catalogue_says":"$0.001","live_402_says":"$0.001","live_http_status":402,"status":"matches"},{"at":"2026-09-01T15:21:20.884Z","scope":"own","resource":"https://api402x.com/x402-listing-drift-check","catalogue_says":"$0.002","live_402_says":"$0.002","live_http_status":402,"status":"matches"},{"at":"2026-09-01T15:56:23.348Z","scope":"own","resource":"https://api402x.com/echo","catalogue_says":"$0.001","live_402_says":"$0.001","live_http_status":402,"status":"matches"},{"at":"2026-09-01T15:56:23.348Z","scope":"own","resource":"https://api402x.com/x402-listing-drift-check","catalogue_says":"$0.002","live_402_says":"$0.002","live_http_status":402,"status":"matches"},{"at":"2026-09-01T16:11:07.016Z","scope":"own","resource":"https://api402x.com/echo","catalogue_says":"$0.001","live_402_says":"$0.001","live_http_status":402,"status":"matches"},{"at":"2026-09-01T16:11:07.016Z","scope":"own","resource":"https://api402x.com/x402-listing-drift-check","catalogue_says":"$0.002","live_402_says":"$0.002","live_http_status":402,"status":"matches"},{"at":"2026-09-01T16:26:30.710Z","scope":"own","resource":"https://api402x.com/echo","catalogue_says":"$0.001","live_402_says":"$0.001","live_http_status":402,"status":"matches"},{"at":"2026-09-01T16:26:30.710Z","scope":"own","resource":"https://api402x.com/x402-listing-drift-check","catalogue_says":"$0.002","live_402_says":"$0.002","live_http_status":402,"status":"matches"},{"at":"2026-09-01T16:36:45.774Z","scope":"own","resource":"https://api402x.com/echo","catalogue_says":"$0.001","live_402_says":"$0.001","live_http_status":402,"status":"matches"},{"at":"2026-09-01T16:36:45.774Z","scope":"own","resource":"https://api402x.com/x402-listing-drift-check","catalogue_says":"$0.002","live_402_says":"$0.002","live_http_status":402,"status":"matches"},{"at":"2026-09-01T17:04:49.749Z","scope":"own","resource":"https://api402x.com/echo","catalogue_says":"$0.001","live_402_says":"$0.001","live_http_status":402,"status":"matches"},{"at":"2026-09-01T17:04:49.749Z","scope":"own","resource":"https://api402x.com/x402-listing-drift-check","catalogue_says":"$0.002","live_402_says":"$0.002","live_http_status":402,"status":"matches"},{"at":"2026-09-01T17:26:03.385Z","scope":"own","resource":"https://api402x.com/echo","catalogue_says":"$0.001","live_402_says":"$0.001","live_http_status":402,"status":"matches"},{"at":"2026-09-01T17:26:03.385Z","scope":"own","resource":"https://api402x.com/x402-listing-drift-check","catalogue_says":"$0.002","live_402_says":"$0.002","live_http_status":402,"status":"matches"},{"at":"2026-09-01T17:36:30.087Z","scope":"own","resource":"https://api402x.com/echo","catalogue_says":"$0.001","live_402_says":"$0.001","live_http_status":402,"status":"matches"},{"at":"2026-09-01T17:36:30.087Z","scope":"own","resource":"https://api402x.com/x402-listing-drift-check","catalogue_says":"$0.002","live_402_says":"$0.002","live_http_status":402,"status":"matches"},{"at":"2026-09-01T17:55:42.534Z","scope":"own","resource":"https://api402x.com/echo","catalogue_says":"$0.001","live_402_says":"$0.001","live_http_status":402,"status":"matches"},{"at":"2026-09-01T17:55:42.534Z","scope":"own","resource":"https://api402x.com/x402-listing-drift-check","catalogue_says":"$0.002","live_402_says":"$0.002","live_http_status":402,"status":"matches"},{"at":"2026-09-01T18:09:41.452Z","scope":"own","resource":"https://api402x.com/echo","catalogue_says":"$0.001","live_402_says":"$0.001","live_http_status":402,"status":"matches"},{"at":"2026-09-01T18:09:41.452Z","scope":"own","resource":"https://api402x.com/x402-listing-drift-check","catalogue_says":"$0.002","live_402_says":"$0.002","live_http_status":402,"status":"matches"},{"at":"2026-09-01T18:24:44.570Z","scope":"own","resource":"https://api402x.com/echo","catalogue_says":"$0.001","live_402_says":"$0.001","live_http_status":402,"status":"matches"},{"at":"2026-09-01T18:24:44.570Z","scope":"own","resource":"https://api402x.com/x402-listing-drift-check","catalogue_says":"$0.002","live_402_says":"$0.002","live_http_status":402,"status":"matches"},{"at":"2026-09-01T18:46:55.154Z","scope":"own","resource":"https://api402x.com/echo","catalogue_says":"$0.001","live_402_says":"$0.001","live_http_status":402,"status":"matches"},{"at":"2026-09-01T18:46:55.154Z","scope":"own","resource":"https://api402x.com/x402-listing-drift-check","catalogue_says":"$0.002","live_402_says":"$0.002","live_http_status":402,"status":"matches"},{"at":"2026-09-01T18:56:57.708Z","scope":"own","resource":"https://api402x.com/echo","catalogue_says":"$0.001","live_402_says":"$0.001","live_http_status":402,"status":"matches"},{"at":"2026-09-01T18:56:57.708Z","scope":"own","resource":"https://api402x.com/x402-listing-drift-check","catalogue_says":"$0.002","live_402_says":"$0.002","live_http_status":402,"status":"matches"}],"how_this_is_built":"Every row is a real check that already happened: a paid call to /x402-listing-drift-check or /listing-drift/batch, or our own periodic probe of our own listings. This endpoint performs no network request of its own -- a free handler that calls third-party origins would be a traffic amplifier paid for by them.","what_is_not_here":"No crawl of the ecosystem catalogue (26000+ entries, we have never crawled it), no third-party URLs, no ranking, no scoring, no history before the last restart.","buy":{"one_listing":"GET /x402-listing-drift-check?resource=<url>&advertised_price=<price>","a_list":"POST /listing-drift/batch with {\"resources\": [...]} -- up to 10 per call","free_preview":"/listing-drift/batch/preview","schema":"/openapi.json"}}