Fetch and extract the readable content of a single URL

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x16B5fE729f2Ca544B309844F75e8429ab45151Ae",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "10000",
    "maxTimeoutSeconds": 300
  }
]

{
  "bazaar": {
    "info": {
      "input": {
        "method": "POST",
        "queryParams": {
          "objective": "summarize the key findings",
          "url": "https://example.com/article"
        },
        "type": "http"
      },
      "output": {
        "example": {
          "excerpts": [
            "QatarEnergy reduced output at one train for scheduled maintenance..."
          ],
          "full_content": "QatarEnergy said today that one of its LNG trains has been taken offline for...",
          "publish_date": "2026-04-26T00:00:00Z",
          "title": "Qatar trims LNG output amid maintenance",
          "url": "https://example.com/article"
        },
        "type": "json"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "queryParams": {
              "properties": {
                "objective": {
                  "description": "Optional natural-language objective used to bias the excerpt selection.",
                  "type": "string"
                },
                "url": {
                  "description": "Absolute http(s) URL to fetch and extract.",
                  "format": "uri",
                  "type": "string"
                }
              },
              "required": [
                "url"
              ],
              "type": "object"
            },
            "type": {
              "const": "http",
              "type": "string"
            }
          },
          "required": [
            "type",
            "method"
          ],
          "type": "object"
        },
        "output": {
          "properties": {
            "example": {
              "properties": {
                "excerpts": {
                  "items": {
                    "type": "string"
                  },
                  "type": "array"
                },
                "full_content": {
                  "type": "string"
                },
                "publish_date": {
                  "nullable": true,
                  "type": "string"
                },
                "title": {
                  "type": "string"
                },
                "url": {
                  "type": "string"
                }
              },
              "type": "object"
            },
            "type": {
              "type": "string"
            }
          },
          "required": [
            "type"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  }
}

curl "https://gateway.sanfoundation.com/x402/v1/web-extract"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

const res = await fetch("https://gateway.sanfoundation.com/x402/v1/web-extract");
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://gateway.sanfoundation.com/x402/v1/web-extract")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header