{"what_this_is":"The way a host the discovery feed does not name gets into the census: serve your own /.well-known/x402 listing your doors, then name your host here and the store reads that file today. The weekly sweep reads the same file for every listed host on its own; this door is for not waiting a week.","the_consent_line":"The store reads only the file at the host you name — never a URL you hand it, never what anyone else says about that host — and a file may only declare doors on the host that serves it. A door on another host is counted as foreign and never walked. Proof of control is the file itself.","the_file":{"path":"/.well-known/x402","shape":{"version":1,"resources":[{"resource":"https://{your-host}/api/your-door","type":"http"}]},"also_read":"/.well-known/agent.json, one hop: an A2A agent card whose x402Discovery names such a file elsewhere; that file's own host is then the declaring host.","cap":"20 doors a host; the census walks one door per host a week, the first declared, and keeps the rest on record.","ours":"https://scvd.store/.well-known/x402 — the same convention, served for this store."},"how_to_call":"POST https://scvd.store/api/declare-door with {\"host\": \"your-host\"}. No account, no key.","the_words_that_come_back":{"doors":"the file was read and declares at least one door on its own host; the first joins this week's roster and the next hourly firing knocks","none":"no file at either path, or a readable file declaring nothing — the host stays listed, not walked, until it serves one","unreadable":"a file the store could not read, parse, or that moved its shape; a redirect off-host counts here too. Not a finding about the host"},"errors":{"400":"not a bare hostname, this store's own host, or a target the probe law refuses (private, odd port)","429":"this host was read by hand within the day; the response says when it can be again"},"one_per_day":"A host is read by hand at most once in 24 hours. The weekly sweep reads it regardless.","what_happens_next":"A declared door is walked by the next hourly firing of the long walk, rides the Sunday round under source well-known, and the passport page and host history derive from that row like any other. It sits out the listed/gone delta: a host declaring itself is not a directory listing it.","example":"curl -X POST https://scvd.store/api/declare-door -H 'Content-Type: application/json' -d '{\"host\":\"payforapi.com\"}'"}