Diagnose why an x402 seller is invisible on Coinbase Bazaar

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x8f9ef7f8c4744bfaedaa5d315c21f9770c10f931",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "10000",
    "maxTimeoutSeconds": 60
  }
]

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "payment_required": {
            "accepts": [],
            "extensions": {
              "bazaar": {
                "info": {},
                "schema": {}
              }
            },
            "resource": {
              "description": "Example paid resource",
              "mimeType": "application/json",
              "url": "https://example.com/v1/item"
            },
            "x402Version": 2
          }
        },
        "bodyType": "json",
        "method": "POST",
        "type": "http"
      },
      "output": {
        "example": {
          "metered": true,
          "result": {
            "findings": [
              {
                "code": "BAZAAR_INPUT_SHAPE",
                "message": "...",
                "severity": "error"
              }
            ],
            "grade": "B",
            "pass": false,
            "score": 72
          },
          "tool": {
            "id": "tool-x402-bazaar-audit",
            "price_version": 1,
            "title": "Will my x402 endpoint show up on Bazaar?"
          }
        },
        "type": "json"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "body": {
              "type": "object"
            },
            "bodyType": {
              "enum": [
                "json"
              ],
              "type": "string"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "type": {
              "const": "http",
              "type": "string"
            }
          },
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "type": "object"
        },
        "output": {
          "properties": {
            "example": {
              "type": "object"
            },
            "type": {
              "type": "string"
            }
          },
          "required": [
            "type"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  }
}

curl "https://quietstore-production.edge-7e13f.workers.dev/v1/tools/x402-bazaar-audit"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

const res = await fetch("https://quietstore-production.edge-7e13f.workers.dev/v1/tools/x402-bazaar-audit");
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://quietstore-production.edge-7e13f.workers.dev/v1/tools/x402-bazaar-audit")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header