One koan per paying wallet per UTC day, drawn from that day's pool and keyed to the addres

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x9d0bb5dA24cADe855DeE8d1231A1c416e0bB2FFe",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "2500",
    "maxTimeoutSeconds": 60
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "payTo": "HiQDSev6m8QwangqGFpfHZtKGFRYkAiqi24aF6BFKJrw",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "2500",
    "maxTimeoutSeconds": 60
  }
]

{
  "bazaar": {
    "info": {
      "input": {
        "body": {},
        "bodyType": "json",
        "method": "POST",
        "type": "http"
      },
      "output": {
        "example": {
          "date": "2026-09-14",
          "koan": "One short oblique line about the work, drawn for your address and this date.",
          "mechanic": "drawn from this UTC date's pool, indexed by the `payer` above — that field is the exact key, and the same key draws this same koan until midnight UTC, then a new one. It is a koan: it resolves nothing on purpose.",
          "payer": "0x0000000000000000000000000000000000000000"
        },
        "format": "application/json",
        "type": "text"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "body": {
              "description": "a JSON body, up to 4 KB. This attraction takes no parameters — POST {} . Every attraction on penny402 is a flat $0.0025; the unpaid 402 carries those exact terms.",
              "type": "object"
            },
            "bodyType": {
              "const": "json",
              "type": "string"
            },
            "method": {
              "const": "POST",
              "type": "string"
            },
            "type": {
              "const": "http",
              "type": "string"
            }
          },
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "type": "object"
        },
        "output": {
          "additionalProperties": false,
          "properties": {
            "example": {
              "description": "a sample response from the real code path"
            },
            "format": {
              "const": "application/json",
              "description": "the attraction, as JSON, in the response body",
              "type": "string"
            },
            "type": {
              "const": "text",
              "type": "string"
            }
          },
          "required": [
            "type",
            "format"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  }
}

curl "https://penny402.fun/koan"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

const res = await fetch("https://penny402.fun/koan");
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://penny402.fun/koan")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header