Wikipedia article summary (extract, short description, thumbnail image, canonical link) fo

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x5c3DB195a38f39074d8c891741A82f6D8f2A16Cc",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "5000",
    "maxTimeoutSeconds": 300
  }
]

{
  "bazaar": {
    "info": {
      "input": {
        "method": "GET",
        "queryParams": {
          "lang": "en",
          "title": "Bitcoin"
        },
        "type": "http"
      },
      "output": {
        "example": {
          "attribution": {
            "license": "CC BY-SA 4.0",
            "license_url": "https://creativecommons.org/licenses/by-sa/4.0/",
            "source": "Wikipedia contributors"
          },
          "description": "Decentralized digital currency",
          "extract": "Bitcoin is the first decentralized cryptocurrency...",
          "fetched_at": "2026-09-01T12:00:00.000Z",
          "thumbnail_url": "https://upload.wikimedia.org/...",
          "title": "Bitcoin",
          "url": "https://en.wikipedia.org/wiki/Bitcoin"
        },
        "type": "json"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "method": {
              "enum": [
                "GET"
              ],
              "type": "string"
            },
            "queryParams": {
              "properties": {
                "lang": {
                  "description": "Wikipedia language code (e.g. en, fr, de). Default: en.",
                  "type": "string"
                },
                "title": {
                  "description": "Exact Wikipedia article title (case-sensitive for some words).",
                  "type": "string"
                }
              },
              "required": [
                "title"
              ],
              "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://x402-seller-0ay3.onrender.com/api/wiki/summary"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

const res = await fetch("https://x402-seller-0ay3.onrender.com/api/wiki/summary");
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://x402-seller-0ay3.onrender.com/api/wiki/summary")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header