The last 24 hours of high-signal developer news from Hacker News, ranked by engagement and

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x470a1b647d668d3820add26d70c8371557ff4c6b",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "20000",
    "maxTimeoutSeconds": 120
  }
]

{
  "bazaar": {
    "info": {
      "input": {
        "method": "GET",
        "queryParams": {
          "since": "2026-08-31T10:12:22Z"
        },
        "type": "http"
      },
      "output": {
        "example": {
          "count": "integer",
          "dataset": "dev-signals",
          "generated_at": "ISO-8601",
          "items": [
            "..."
          ]
        },
        "type": "json"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "method": {
              "enum": [
                "GET",
                "HEAD"
              ],
              "type": "string"
            },
            "queryParams": {
              "properties": {
                "since": {
                  "description": "ISO-8601 date or timestamp. Returns only stories whose created_at is newer than this — normally the generated_at of your previous fetch. An empty delta is refused with a 400 and settles no payment, and so is a since earlier than the build's coverage.delta_complete_since, which would return a silently incomplete delta. This is a 24h window, so poll at least daily.",
                  "type": "string"
                }
              },
              "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"
    }
  }
}

curl "https://datastand.dev/api/data/dev-signals"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

const res = await fetch("https://datastand.dev/api/data/dev-signals");
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://datastand.dev/api/data/dev-signals")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header