News Find Topic News

{
  "articles": [
    {
      "duplicate_count": 1,
      "headline_id": "headline-9d12a0a05f5e0338",
      "id": "article-10e46334083ac0e3",
      "language": "English",
      "observed_at": "2026-10-11T12:00:00Z",
      "published_at": null,
      "source_country": "",
      "source_domain": "news.example.org",
      "title": "Renewable energy storage pilot opens",
      "url": "https://news.example.org/energy"
    }
  ],
  "attribution": {
    "name": "The GDELT Project",
    "url": "https://www.gdeltproject.org/"
  },
  "coverage": {
    "discarded_rows": 0,
    "duplicates_removed": 1,
    "possibly_truncated": false,
    "previously_seen_removed": 0,
    "result_byte_limited": false,
    "returned": 1,
    "source": "GDELT headline index",
    "source_limit": 150,
    "source_rows": 3
  },
  "limitations": [
    "Dates are GDELT monitoring times, not verified publication or first-ever observation times."
  ],
  "monitoring": {
    "history_limited": false,
    "next_request": null,
    "overlap_seconds": 2700,
    "state": "initial"
  },
  "query": "renewable energy",
  "retrieved_at": "2026-10-12T12:00:00Z",
  "status": "ok",
  "summary": {
    "basis": "headlines_only",
    "highlights": [
      {
        "article_ids": [
          "article-10e46334083ac0e3"
        ],
        "text": "Renewable energy storage pilot opens"
      }
    ]
  },
  "window": {
    "date_basis": "gdelt_observed_at",
    "end": "2026-10-12T12:00:00Z",
    "start": "2026-10-05T12:00:00Z"
  }
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://api.mekler.ai/v1/research/news/find-topic-news' \
  -H 'content-type: application/json' \
  --data-raw '{"include_summary":true,"limit":1,"query":"renewable energy"}'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - -X POST 'https://api.mekler.ai/v1/research/news/find-topic-news' \
  -H 'content-type: application/json' \
  --data-raw '{"include_summary":true,"limit":1,"query":"renewable energy"}' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode

// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.01 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.01" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.01 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.mekler.ai%2Fv1%2Fresearch%2Fnews%2Ffind-topic-news&method=POST
const res = await pay("https://api.mekler.ai/v1/research/news/find-topic-news", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "include_summary": true,
    "limit": 1,
    "query": "renewable energy"
  }),
});
console.log(res.status, await res.text());

# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.01 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.01"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://api.mekler.ai/v1/research/news/find-topic-news",
        json={
            "include_summary": True,
            "limit": 1,
            "query": "renewable energy",
        },
    )
    print(res.status_code, res.text)