Open Source Filings · Patents Search

import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";

const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const fetchWithPay = wrapFetchWithPayment(fetch, account);

const res = await fetchWithPay("https://api.osf-master-server.com/x402/patents/search/:query", {
  method: "GET",
});
const data = await res.json();

curl -X GET \
  "https://api.osf-master-server.com/x402/patents/search/:query?format=json" \
  -H "X-PAYMENT: <signed x402 payment>"

{
  "match_count": 1,
  "matches": [
    {
      "assignee": "Cytiva BioProcess R&D AB",
      "grant_date": "2026-07-14",
      "patent_number": "12678711",
      "record_id": 12345,
      "source": "USPTO",
      "title": "PARALLEL SEPARATION SYSTEM"
    }
  ],
  "result": "MATCHES_FOUND",
  "search_evidence": {
    "_about": "Proof of work, on EVERY result including NO_MATCH: the terms actually searched, how many records were in scope per source, how fresh they are, whether the scan completed or was truncated, and on an empty result the per-term record counts plus a known-good control query re-measured live in the same request. Numbers shown are illustrative.",
    "corpus": {
      "newest_record_ingested_utc": "2026-08-01T15:47:55Z",
      "records_in_scope": 1558599
    },
    "result_confidence": "matches_found",
    "scan": {
      "candidate_set_complete": true,
      "candidates_examined": 35,
      "matches_omitted": 25
    }
  }
}