Api Endpoint

listing-grader-ai.lovable.app

Product Listing Preflight — one metered assessment.

Open interactive test console

Offering

Provider
listing-grader-ai.lovable.app
Method
GET
Offering type
Api Endpoint
Transport type
http
Category
Business And Commerce
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://listing-grader-ai.lovable.app/api/public/paid-preflight/amazon
MIME type
application/json
First seen
2026-10-16T01:52:40.118Z
Last seen
Tags
None supplied

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
0.05 USDC
Atomic price: 50000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "50000",
    "payTo": "0x154DB68DFc226d9427a4aecE976E1161F50939e4"
  }
]

Observed health

Status
Healthy
Latest latency
2624 ms
Average latency
2686 ms
HTTP status
402
Last checked
Reachability
100% over 14 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false,
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "GET"
      ]
    },
    "queryParams": {
      "type": "object",
      "properties": {
        "title": {
          "type": "string",
          "description": "Listing title."
        },
        "description": {
          "type": "string",
          "description": "Full listing description."
        },
        "price": {
          "type": "string",
          "description": "Price as a decimal string, e.g. 24.99."
        },
        "currency": {
          "type": "string",
          "description": "ISO 4217 currency code, e.g. GBP."
        },
        "category": {
          "type": "string",
          "description": "Marketplace category or path."
        },
        "keywords": {
          "type": "string",
          "description": "Comma-separated search keywords."
        },
        "features": {
          "type": "string",
          "description": "Features/specs, separated by ; or newlines."
        },
        "imageCount": {
          "type": "string",
          "description": "Number of product images."
        },
        "shipping": {
          "type": "string",
          "description": "Shipping policy text."
        },
        "returns": {
          "type": "string",
          "description": "Returns policy text."
        },
        "strict": {
          "type": "string",
          "enum": [
            "1",
            "true",
            "0",
            "false"
          ],
          "description": "Refuse requests with missing fields."
        }
      },
      "additionalProperties": false
    }
  }
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "method": {
          "enum": [
            "GET"
          ],
          "type": "string"
        },
        "queryParams": {
          "additionalProperties": false,
          "properties": {
            "category": {
              "description": "Marketplace category or path.",
              "type": "string"
            },
            "currency": {
              "description": "ISO 4217 currency code, e.g. GBP.",
              "type": "string"
            },
            "description": {
              "description": "Full listing description.",
              "type": "string"
            },
            "features": {
              "description": "Features/specs, separated by ; or newlines.",
              "type": "string"
            },
            "imageCount": {
              "description": "Number of product images.",
              "type": "string"
            },
            "keywords": {
              "description": "Comma-separated search keywords.",
              "type": "string"
            },
            "price": {
              "description": "Price as a decimal string, e.g. 24.99.",
              "type": "string"
            },
            "returns": {
              "description": "Returns policy text.",
              "type": "string"
            },
            "shipping": {
              "description": "Shipping policy text.",
              "type": "string"
            },
            "strict": {
              "description": "Refuse requests with missing fields.",
              "enum": [
                "1",
                "true",
                "0",
                "false"
              ],
              "type": "string"
            },
            "title": {
              "description": "Listing title.",
              "type": "string"
            }
          },
          "type": "object"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "properties": {
            "checks": {
              "description": "[{ id, label, scope, status: PASS|WARNING|FAIL, weight, detail }]"
            },
            "counts": {
              "description": "{ pass, warning, fail }"
            },
            "keywordObservations": {
              "description": "object"
            },
            "missingInformation": {
              "description": "string[]"
            },
            "payment": {
              "description": "{ receipt, quote, transaction, chainStatus }"
            },
            "recommendations": {
              "description": "string[]"
            },
            "score": {
              "description": "integer 0-100"
            },
            "summary": {
              "description": "string"
            },
            "verdict": {
              "description": "READY | NEEDS_WORK | NOT_READY"
            }
          },
          "required": [
            "score",
            "verdict",
            "checks"
          ],
          "type": "object"
        },
        "type": {
          "const": "json",
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input",
    "output"
  ],
  "type": "object"
}