Fetch a public HTTP(S) page with private-network blocking and extract its title, descripti

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x8647F7D7a1368a467Ad1FF757fBc2e7167973558",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "3000",
    "maxTimeoutSeconds": 300
  }
]

{
  "bazaar": {
    "info": {
      "input": {
        "method": "GET",
        "queryParams": {
          "url": "https://github.com"
        },
        "type": "http"
      },
      "output": {
        "example": {
          "content_type": "text/html; charset=utf-8",
          "description": "Join the world's most widely adopted, AI-powered developer platform where millions of developers, businesses, and the largest open source community build software that advances humanity.",
          "fetched_at": "2026-08-07T07:32:39.578Z",
          "marketplace_metadata": {
            "availability": "operational",
            "billable": true,
            "data_mode": "live_source",
            "source": "live public web fetch"
          },
          "og_image": "https://images.ctfassets.net/8aevphvgewt8/4pe4eOtUJ0ARpZRE4fNekf/f52b1f9c52f059a33170229883731ed0/GH-Homepage-Universe-img.png",
          "source": "live public web fetch",
          "status_code": 200,
          "success": true,
          "title": "GitHub · Change is constant. GitHub keeps you ahead. · GitHub",
          "url": "https://github.com/"
        },
        "type": "json"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "method": {
              "enum": [
                "GET"
              ],
              "type": "string"
            },
            "queryParams": {
              "additionalProperties": true,
              "properties": {
                "url": {
                  "description": "The URL to extract metadata from.",
                  "type": "string"
                }
              },
              "required": [
                "url"
              ],
              "type": "object"
            },
            "type": {
              "const": "http",
              "type": "string"
            }
          },
          "required": [
            "type",
            "method"
          ],
          "type": "object"
        },
        "output": {
          "properties": {
            "example": {
              "additionalProperties": true,
              "properties": {
                "content_type": {
                  "type": "string"
                },
                "description": {
                  "type": "string"
                },
                "fetched_at": {
                  "type": "string"
                },
                "marketplace_metadata": {
                  "additionalProperties": true,
                  "properties": {
                    "availability": {
                      "type": "string"
                    },
                    "billable": {
                      "type": "boolean"
                    },
                    "data_mode": {
                      "type": "string"
                    },
                    "source": {
                      "type": "string"
                    }
                  },
                  "required": [
                    "data_mode",
                    "billable",
                    "availability",
                    "source"
                  ],
                  "type": "object"
                },
                "og_image": {
                  "type": "string"
                },
                "source": {
                  "type": "string"
                },
                "status_code": {
                  "type": "integer"
                },
                "success": {
                  "type": "boolean"
                },
                "title": {
                  "type": "string"
                },
                "url": {
                  "type": "string"
                }
              },
              "required": [
                "success",
                "source",
                "fetched_at",
                "url",
                "status_code",
                "content_type",
                "title",
                "description",
                "og_image",
                "marketplace_metadata"
              ],
              "type": "object"
            },
            "type": {
              "type": "string"
            }
          },
          "required": [
            "type"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  }
}

curl "https://ai-data-marketplace-1042299154756.us-central1.run.app/api/v1/url_metadata"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

const res = await fetch("https://ai-data-marketplace-1042299154756.us-central1.run.app/api/v1/url_metadata");
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://ai-data-marketplace-1042299154756.us-central1.run.app/api/v1/url_metadata")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header