Observe whether one x402 seller resource appears in Coinbase Bazaar merchant discovery and

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0xdb7b2b54f80479826222749a2ea73a8acc306e1e",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "10000",
    "maxTimeoutSeconds": 60
  }
]

{
  "bazaar": {
    "info": {
      "description": "Observe whether one x402 seller resource appears in Coinbase Bazaar merchant discovery and where the exact resource sits in the first 20 results for 1–3 buyer-supplied job-language searches. Factual evidence only. Call when you need a point-in-time Bazaar presence and top-20 search observation, not a trust, SEO, or remediation score.",
      "input": {
        "body": {
          "pay_to": "0x0000000000000000000000000000000000000001",
          "queries": [
            "example paid json api"
          ],
          "resource": "https://api.example.com/v1/paid"
        },
        "bodyType": "json",
        "method": "POST",
        "type": "http"
      },
      "output": {
        "example": {
          "limitations": [
            "Point-in-time Coinbase Bazaar observation, not future visibility or a score."
          ],
          "machine": "VM05",
          "merchant": {
            "presence": "FOUND"
          },
          "methodology_version": "bazaar-visibility-0.1.0",
          "pay_to": "0x0000000000000000000000000000000000000001",
          "resource": "https://api.example.com/v1/paid",
          "searches": [
            {
              "position": 1,
              "query": "example paid json api",
              "visibility": "IN_TOP_20"
            }
          ],
          "status": "OK"
        },
        "type": "json"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "body": {
              "additionalProperties": false,
              "properties": {
                "pay_to": {
                  "description": "Merchant payTo address. 0x-prefixed 20-byte EVM address.",
                  "type": "string"
                },
                "queries": {
                  "description": "1 to 3 buyer-supplied job-language searches. No hidden default query.",
                  "items": {
                    "description": "Buyer-job search string. Coinbase search maximum is 400 characters.",
                    "maxLength": 400,
                    "minLength": 2,
                    "type": "string"
                  },
                  "maxItems": 3,
                  "minItems": 1,
                  "type": "array"
                },
                "resource": {
                  "description": "Exactly one absolute HTTPS x402 resource URL identifier. Treated as an identifier only; never fetched or proxied. Fragments, credentials, non-HTTPS, and non-443 ports are rejected.",
                  "format": "uri",
                  "type": "string"
                }
              },
              "required": [
                "resource",
                "pay_to",
                "queries"
              ],
              "type": "object"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "type": {
              "const": "http",
              "type": "string"
            }
          },
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "type": "object"
        },
        "output": {
          "properties": {
            "example": {
              "additionalProperties": true,
              "properties": {
                "limitations": {
                  "items": {
                    "type": "string"
                  },
                  "type": "array"
                },
                "machine": {
                  "enum": [
                    "VM05"
                  ],
                  "type": "string"
                },
                "merchant": {
                  "description": "Bounded Coinbase merchant presence for the submitted resource.",
                  "type": "object"
                },
                "methodology_version": {
                  "enum": [
                    "bazaar-visibility-0.1.0"
                  ],
                  "type": "string"
                },
                "pay_to": {
                  "type": "string"
                },
                "resource": {
                  "type": "string"
                },
                "searches": {
                  "description": "Top-20 visibility for each submitted buyer-job query.",
                  "type": "array"
                },
                "status": {
                  "enum": [
                    "OK",
                    "PARTIAL",
                    "HOLD"
                  ],
                  "type": "string"
                }
              },
              "required": [
                "status",
                "machine",
                "methodology_version",
                "resource",
                "pay_to",
                "merchant",
                "searches",
                "limitations"
              ],
              "type": "object"
            },
            "type": {
              "type": "string"
            }
          },
          "required": [
            "type"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  }
}

curl "https://api.agentmercantile.com/v1/bazaar-visibility"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

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