Multi-Engine Web Search · Serp Multi

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.kadec0.xyz/v1/serp-multi", {
  method: "GET",
});
const data = await res.json();

curl -X GET \
  "https://api.kadec0.xyz/v1/serp-multi?engines=yahoo%2Cyandex&q=best+vector+database+2026" \
  -H "X-PAYMENT: <signed x402 payment>"

{
  "count": 2,
  "items": [
    {
      "engines": [
        {
          "engine": "yahoo",
          "resultCount": 10
        },
        {
          "engine": "yandex",
          "resultCount": 10
        }
      ],
      "mergedCount": 14,
      "query": "best vector database 2026",
      "type": "serp_multi"
    },
    {
      "engineRanks": {
        "yahoo": 1,
        "yandex": 3
      },
      "engines": [
        "yahoo",
        "yandex"
      ],
      "rank": 1,
      "snippet": "A comparison of...",
      "title": "Vector DB Comparison",
      "type": "search_result",
      "url": "https://example.com/vectordb"
    }
  ]
}