Listing Roast Quick Score x402: $0

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0xd9E7a161aD06F410c28b3939ceF5F06f0a327a8C",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "1000",
    "maxTimeoutSeconds": 300
  }
]

{
  "bazaar": {
    "info": {
      "input": {
        "method": "GET",
        "queryParams": {
          "agentName": "Example x402 API",
          "currentCheckoutPath": "/api/listing-roast",
          "currentPrice": "$1.00",
          "goal": "Increase first paid conversion",
          "listingText": "A paid x402 API that helps builders check whether buyer agents understand the offer before paying. It returns JSON with skip reasons, top fixes, a rewritten listing, and a stop-or-upgrade recommendation. Example payloads are included for quick testing.",
          "targetBuyer": "x402 and MCP builders"
        },
        "type": "http"
      },
      "output": {
        "example": {
          "checkedSignals": {
            "buyer": true,
            "checkout": true,
            "example": true,
            "output": true,
            "price": true
          },
          "endpoint": "listing-roast-quick-score",
          "firstFix": "The basics are present. Use the full roast only if you want a rewrite and launch recommendation.",
          "nextStep": "This GET route keeps the indexed /api/listing-roast URL payable at the lowest price. Use POST /api/listing-roast for the full rewrite and launch recommendation.",
          "price": "$0.001",
          "score": "5/5",
          "service": "Listing Roast x402",
          "upgradeEndpoint": "/api/listing-roast",
          "verdict": "ready_to_test"
        },
        "type": "json"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "method": {
              "enum": [
                "GET"
              ],
              "type": "string"
            },
            "queryParams": {
              "properties": {
                "agentName": {
                  "type": "string"
                },
                "currentCheckoutPath": {
                  "type": "string"
                },
                "currentPrice": {
                  "type": "string"
                },
                "goal": {
                  "type": "string"
                },
                "listingText": {
                  "type": "string"
                },
                "targetBuyer": {
                  "type": "string"
                }
              },
              "type": "object"
            },
            "type": {
              "const": "http",
              "type": "string"
            }
          },
          "required": [
            "type",
            "method"
          ],
          "type": "object"
        },
        "output": {
          "properties": {
            "example": {
              "properties": {
                "checkedSignals": {
                  "type": "object"
                },
                "endpoint": {
                  "type": "string"
                },
                "firstFix": {
                  "type": "string"
                },
                "nextStep": {
                  "type": "string"
                },
                "price": {
                  "type": "string"
                },
                "score": {
                  "type": "string"
                },
                "service": {
                  "type": "string"
                },
                "upgradeEndpoint": {
                  "type": "string"
                },
                "verdict": {
                  "type": "string"
                }
              },
              "required": [
                "service",
                "endpoint",
                "price",
                "verdict",
                "score",
                "checkedSignals",
                "firstFix",
                "nextStep",
                "upgradeEndpoint"
              ],
              "type": "object"
            },
            "type": {
              "type": "string"
            }
          },
          "required": [
            "type"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  }
}

curl "https://listing-roast-x402-service-production.up.railway.app/api/listing-roast"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

const res = await fetch("https://listing-roast-x402-service-production.up.railway.app/api/listing-roast");
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://listing-roast-x402-service-production.up.railway.app/api/listing-roast")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header