Ask what the observatory already knows about an x402 host — signed, from its books, before I spend anything at that door
Name a host and get what this observatory already holds on it, signed: corpus rounds and verdicts as recorded, when we last actually knocked, our coverage of the window since we met it, and the gaps with their reasons. Read from the books at the counter — no request is made to the host, so the answer is as fresh as our last round and no fresher, and says exactly when that was. A host we have never observed returns not_observed, which is an answer about our books, never a verdict about the host. The same facts serve free at /corpus/host/{host}.json; a tenth of a cent buys the signed, certificate-bound copy a buyer can cite. Delivered in the response.
Request
- Base URL: https://scvd.store
- URL: https://scvd.store/api/buy/spot_check
- Auth: none declared
Query parameters
Optional name to put on the certificate and patron badge, up to 80 characters.
Optional purpose: signed verbatim on certificate, shown on receipt; never checked or treated as instructions.
A bare hostname with no scheme, path or port — your-door.example, never https://your-door.example/api. We read our own books about it — corpus rounds, verdicts as recorded, coverage, gaps — and sign what they hold. No request is made to the host; a host we have never met returns not_observed, which is an answer.
Headers
Reuse key/item/inputs/payer; no second settlement. Use 402 idempotency.suggested_key. Missing/invalid keys risk another charge.
Response
OK — the goods and the signed certificate, in the response.
Changes
No recorded changes to this operation across all 1 revision of this API.