Verify Citation

Last 30 days

Uptime

100%

Response time

224 ms typical, 348 ms slowest 5%

Last check

58 min ago

Next check

any minute now

How to call it

# See the payment challenge (nothing is charged)
curl -i -X POST "https://goodsong.dev/verify/citation" \
  -H "content-type: application/json" \
  -d '{"doi":"10.1126/science.1260419","title":"Tissue-based map of the human proteome"}'

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%2Fgoodsong.dev%2Fverify%2Fcitation
const res = await pay("https://goodsong.dev/verify/citation", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({"doi":"10.1126/science.1260419","title":"Tissue-based map of the human proteome"}),
});
console.log(await res.json());

Example input

{
  "doi": "10.1126/science.1260419",
  "title": "Tissue-based map of the human proteome"
}

Example output

{
  "canonical": {
    "authors": [
      "Mathias Uhlén",
      "Linn Fagerberg"
    ],
    "doi": "10.1126/science.1260419",
    "journal": "Science",
    "title": "Tissue-based map of the human proteome",
    "year": 2015,
    "year_candidates": [
      2015
    ]
  },
  "checks": {
    "authors_match": true,
    "exists": true,
    "journal_match": null,
    "retracted": false,
    "title_match": true,
    "year_match": true
  },
  "cost": {
    "amount": "0.005",
    "currency": "USDC"
  },
  "evidence": [
    {
      "retrieved_at": "2026-08-30T12:00:00Z",
      "source": "crossref",
      "url": "https://api.crossref.org/works/10.1126/science.1260419"
    }
  ],
  "latency_ms": 312,
  "verdict": "confirmed"
}

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