Signal Topic Trace

{
  "archive_day_count": 14,
  "archive_earliest": "2026-09-19",
  "archive_latest": "2026-10-07",
  "brand": "draconic21",
  "disclaimer": "Informational topic/id trace only. Point-in-time editorial research; verify sources before…",
  "matched_dates": [
    "2026-10-04"
  ],
  "matched_day_count": 4,
  "moat": {
    "archive_day_count": 14,
    "kind": "archive_compound_topic_trace"
  },
  "product": "Daily Agent Signal Topic Trace",
  "query": {
    "id": "payai-head-relay402-8h-batch-rerank",
    "mode": "id",
    "topic": null
  },
  "schema": "draconic21.daily_agent_signal_topic_trace.v1",
  "signal_count": 1,
  "summary": {
    "first_seen": "2026-10-04",
    "ids": [
      "payai-head-relay402-8h-batch-rerank"
    ],
    "last_seen": "2026-10-07"
  },
  "traces": [
    {
      "appearances": [
        {
          "confidence": "medium",
          "date": "2026-10-04",
          "headline": "One workers.dev seller re-registers on PayAI in batched bursts 8h apar…",
          "judgment": "PayAI discovery/resources pagination.total moved 13,498 (00:48Z) to 13…",
          "rank": 2,
          "vs_prior": "changed"
        }
      ],
      "confidence_latest": "high",
      "coverage_ratio": 0.286,
      "days_present": 4,
      "first_seen": "2026-10-04",
      "headline_drift": true,
      "id": "payai-head-relay402-8h-batch-rerank",
      "judgment_drift": true,
      "last_seen": "2026-10-07",
      "rank_delta": 4,
      "ranks": [
        {
          "date": "2026-10-04",
          "rank": 2
        }
      ],
      "topics": [],
      "trajectory": "rising",
      "vs_prior_path": [
        {
          "date": "2026-10-04",
          "vs_prior": "changed"
        }
      ]
    }
  ],
  "window": {
    "dates": [
      "2026-09-19"
    ],
    "days_in_window": 14,
    "earliest": "2026-09-19",
    "latest": "2026-10-07",
    "requested_days": 90
  }
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://draconic21-x402-api.onrender.com/v1/signal_topic_trace' \
  -H 'content-type: application/json' \
  --data-raw '{"id":"payai-head-relay402-8h-batch-rerank"}'

# 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://draconic21-x402-api.onrender.com/v1/signal_topic_trace' \
  -H 'content-type: application/json' \
  --data-raw '{"id":"payai-head-relay402-8h-batch-rerank"}' \
  | 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 $0.06 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.06" });
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 $0.06 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fdraconic21-x402-api.onrender.com%2Fv1%2Fsignal_topic_trace&method=POST
const res = await pay("https://draconic21-x402-api.onrender.com/v1/signal_topic_trace", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "id": "payai-head-relay402-8h-batch-rerank"
  }),
});
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 $0.06 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.06"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://draconic21-x402-api.onrender.com/v1/signal_topic_trace",
        json={
            "id": "payai-head-relay402-8h-batch-rerank",
        },
    )
    print(res.status_code, res.text)