Korean corporate disclosure (DART) event stream, cursor-based delta

[
  {
    "scheme": "exact",
    "network": "base",
    "payTo": "0x3b20d22540deb3CF1162B195CD15756adb5ceB5D",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "2000",
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "solana",
    "payTo": "5xrtB5SFAb214aC2EmLiyMJGop2EVef1zWBdDpLF7s9y",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "2000",
    "maxTimeoutSeconds": 300
  }
]

{
  "bazaar": {
    "info": {
      "input": {
        "method": "GET",
        "queryParams": {
          "limit": "100",
          "market": "KOSDAQ",
          "since_cursor": "20260720900000"
        },
        "type": "http"
      },
      "output": {
        "example": {
          "count": 1,
          "cursor": "20260720900813",
          "events": [
            {
              "category": "supply_contract",
              "category_en": "Supply/Sales Contract",
              "corp": {
                "code": "060310",
                "dart_code": "00434003",
                "name_en": "3S KOREA Co.,Ltd.",
                "name_kr": "3S"
              },
              "filed_date": "20260720",
              "importance": 0.9,
              "market": "KOSDAQ",
              "material": true,
              "rcept_no": "20260720900810",
              "source": "https://dart.fss.or.kr/dsaf001/main.do?rcpNo=20260720900810",
              "title_kr": "단일판매ㆍ공급계약체결"
            }
          ]
        },
        "type": "object"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "properties": {
            "method": {
              "enum": [
                "GET"
              ],
              "type": "string"
            },
            "queryParams": {
              "type": "object"
            },
            "type": {
              "const": "http",
              "type": "string"
            }
          },
          "required": [
            "type",
            "method"
          ],
          "type": "object"
        },
        "output": {
          "properties": {
            "example": {},
            "type": {
              "type": "string"
            }
          },
          "required": [
            "type"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  }
}

curl "https://dartapi.ljaysk.com/v1/events"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

const res = await fetch("https://dartapi.ljaysk.com/v1/events");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

import httpx
res = httpx.get("https://dartapi.ljaysk.com/v1/events")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header