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Paper Details

by Citations, References, Cited-By in News & content

x402 APIPassing, checked 1 h ago

Citation lookup and reference list for a paper. Given a DOI, arXiv id, OpenAlex id, or PMID, returns its references (the works it cites) and its cited-by list (recent works that cite it), plus full metadata and citation count — for bibliography building and citation lookup. Keyless via OpenAlex and Semantic Scholar.

GET https://api.kadec0.xyz/v1/paper-details

Last 30 days

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Uptime
100%
Response time
270 ms typical, 391 ms slowest 5%
Last check
1 h ago
Next check
any minute now

How to call it

# See the payment challenge (nothing is charged)
curl -i -X GET "https://api.kadec0.xyz/v1/paper-details?doi=10.48550%2FarXiv.1706.03762"
import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { ExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client().register(
  "eip155:8453",
  new ExactEvmScheme(privateKeyToAccount(process.env.AGENT_KEY)),
);
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? Preflight it first for $0.005:
// GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.kadec0.xyz%2Fv1%2Fpaper-details
const res = await pay("https://api.kadec0.xyz/v1/paper-details?doi=10.48550%2FarXiv.1706.03762");
console.log(await res.json());

Example input

{
  "doi": "10.48550/arXiv.1706.03762"
}

Example output

{
  "count": 1,
  "items": [
    {
      "citationCount": 181057,
      "citedBy": [
        {
          "citedByCount": 90000,
          "title": "BERT: Pre-training...",
          "year": 2019
        }
      ],
      "doi": "10.48550/arxiv.1706.03762",
      "fieldsOfStudy": [
        "Computer Science"
      ],
      "referenceCount": 41,
      "references": [
        {
          "doi": "...",
          "title": "Neural Machine Translation...",
          "year": 2014
        }
      ],
      "title": "Attention Is All You Need",
      "type": "paper_details",
      "year": 2017
    }
  ]
}

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