FETCH402
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Resource / 341

healthy

Hacker News Stories & Search.

GET https://api.kadec0.xyz/v1/hackernews ↗

Hacker News feed. Top, new, and best front-page stories plus full-text story search — titles, scores, comment counts, and author for tech and startup news.

Eligibility
probeable
Failures
0
Last quote
2026-08-12 22:47:39 UTC
Last probe
2026-08-12 22:47:39 UTC
Payment requirements / accepts[] 1 options
State Network Scheme Atomic amount Asset payTo / untrusted
active eip155:8453 exact 10000 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA

All advertised payment options are stored. Base (`eip155:8453`) is the operational network for ranking and canaries; non-Base options remain visible for transparency.

Probe evidence 1 recent
healthy 2026-08-12 22:47:39 UTC GET · HTTP 402 · 82ms · accepts 1 · base 1 ok
Request
GET https://api.kadec0.xyz/v1/hackernews
Robots
error
Note
robots_error:{:robots_http_status, 404};http_402;accepts=1;base=1
Accepts fingerprint
ca1be5fe9cc1315f573a82f6f12cfca9ce66f32f2a8ae4295ac6bb85c9f881e4

Accepts snapshot

[
  {
    "amount": "10000",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "assetTransferMethod": null,
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "maxTimeoutSeconds": 300,
    "network": "eip155:8453",
    "payTo": "0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA",
    "paymentFlow": null,
    "raw": {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "max_timeout_seconds": 300,
      "network": "eip155:8453",
      "payTo": "0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA",
      "pay_to": "0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA",
      "scheme": "exact"
    },
    "scheme": "exact"
  }
]

PaymentRequired raw 

{
  "accepts": [
    {
      "amount": "10000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x4df66B6c140778fe0717880A7c6dDE5Ea53AcDeA",
      "scheme": "exact"
    }
  ],
  "error": "Payment required",
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "method": "GET",
          "queryParams": {
            "mode": "search",
            "q": "ai agents"
          },
          "type": "http"
        },
        "output": {
          "example": {
            "count": 1,
            "items": [
              {
                "numComments": 99,
                "points": 420,
                "title": "...",
                "type": "hn_hit",
                "url": "..."
              }
            ]
          },
          "type": "json"
        }
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "additionalProperties": false,
            "properties": {
              "method": {
                "enum": [
                  "GET",
                  "HEAD",
                  "DELETE"
                ],
                "type": "string"
              },
              "queryParams": {
                "properties": {
                  "maxItems": {
                    "default": 20,
                    "type": "integer"
                  },
                  "mode": {
                    "enum": [
                      "search",
                      "top",
                      "new",
                      "best"
                    ],
                    "type": "string"
                  },
                  "q": {
                    "description": "query (mode=search)",
                    "type": "string"
                  }
                },
                "required": [],
                "type": "object"
              },
              "type": {
                "const": "http",
                "type": "string"
              }
            },
            "required": [
              "type",
              "method"
            ],
            "type": "object"
          },
          "output": {
            "properties": {
              "example": {
                "type": "object"
              },
              "type": {
                "type": "string"
              }
            },
            "required": [
              "type"
            ],
            "type": "object"
          }
        },
        "required": [
          "input"
        ],
        "type": "object"
      }
    }
  },
  "resource": {
    "description": "Hacker News feed. Top, new, and best front-page stories plus full-text story search — titles, scores, comment counts, and author for tech and startup news.",
    "mimeType": "",
    "serviceName": "Hacker News Stories & Search",
    "tags": [
      "hackernews",
      "tech-news",
      "startup",
      "developer",
      "ycombinator"
    ],
    "url": "https://api.kadec0.xyz/v1/hackernews"
  },
  "x402Version": 2
}

Response headers

{
  "alt-svc": "h3=\":443\"; ma=86400",
  "cf-cache-status": "DYNAMIC",
  "cf-ray": "a2a305e47897e5f9-IAD",
  "connection": "keep-alive",
  "content-type": "application/json",
  "date": "Wed, 12 Aug 2026 22:47:39 GMT",
  "payment-required": "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",
  "rndr-id": "b3396b5b-e5d3-48f3",
  "server": "cloudflare",
  "transfer-encoding": "chunked",
  "vary": "Accept-Encoding",
  "x-render-origin-server": "uvicorn"
}

Response body 

{}

Request headers

{
  "accept": "*/*",
  "user-agent": "Fetch402Bot/0.1 (+https://fetch402.com/crawler; contact: crawler@fetch402.com)"
}

Machine contract

Schemas.

InputJSON
{
  "method": "GET",
  "queryParams": {
    "mode": "search",
    "q": "ai agents"
  },
  "type": "http"
}
OutputJSON
{
  "example": {
    "count": 1,
    "items": [
      {
        "numComments": 99,
        "points": 420,
        "title": "...",
        "type": "hn_hit",
        "url": "..."
      }
    ]
  },
  "type": "json"
}