# Friday Seller Tools – Listing Audit

> Friday Seller Tools – Listing Audit is a paid API for AI agents from friday-seller-tools-production.up.railway.app, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).

Audits an e-commerce product listing for Amazon, Walmart, Shopify, or eBay and returns actionable improvement recommendations.

## Facts

- Endpoint: POST https://friday-seller-tools-production.up.railway.app/v1/listing/audit
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/friday-seller-tools-listing-audit-827c456b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_J4i5mvSNqTq2pyCYZtNYD

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability friday-seller-tools-listing-audit-827c456b -d '<json body>'
```

Example prompt: Can you audit my Amazon listing for my wireless ergonomic mouse — here's the title, bullet points, and description — and tell me exactly what needs to be improved to boost visibility and conversions?

## When to prefer this

Choose this endpoint when you need rapid, low-cost automated auditing of a marketplace listing before publishing or as part of a listing optimization workflow. It is especially useful for sellers managing multiple SKUs across Amazon, Walmart, Shopify, or eBay who need instant feedback without hiring a manual listing specialist. Prefer this over generic SEO tools when you need marketplace-specific compliance and best-practice checks.

## Known failure modes

- Missing or malformed listing content returns a validation error
- Unsupported marketplace identifier causes a rejection
- Payment not received or insufficient USDC results in a 402 error
- Job queued but result not yet available — agent must poll using job_id
- Network timeout on the Railway-hosted service during high load

## How this service works

Instant, low-cost Amazon, Walmart, Shopify, and eBay listing, upload-preparation, advertising, and image-brief deliverables.

## Output

Returns a job_id and a queued status immediately; once processed, the audit delivers a structured report including a listing quality score, identified issues across title, bullets, description, and keywords, and prioritized recommendations for improvement on the specified marketplace.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "listing": {
   "type": "object",
   "title": "ListingContent",
   "required": [
    "title",
    "bullets",
    "description"
   ],
   "properties": {
    "title": {
     "type": "string",
     "title": "Title",
     "maxLength": 500,
     "minLength": 5
    },
    "bullets": {
     "type": "array",
     "items": {
      "type": "string",
      "maxLength": 1000,
      "minLength": 2
     },
     "title": "Bullets",
     "maxItems": 10,
     "minItems": 1
    },
    "description": {
     "type": "string",
     "title": "Description",
     "maxLength": 10000,
     "minLength": 10
    },
    "backend_keywords": {
     "type": "array",
     "items": {
      "type": "string",
      "maxLength": 100,
      "minLength": 1
     },
     "title": "Backend Keywords",
     "maxItems": 100
    }
   },
   "additionalProperties": false
  },
  "product": {
   "type": "object",
   "title": "ProductFacts",
   "required": [
    "brand",
    "product_name",
    "category",
    "features"
   ],
   "properties": {
    "brand": {
     "type": "string",
     "title": "Brand",
     "maxLength": 100,
     "minLength": 1
    },
    "benefits": {
     "type": "array",
     "items": {
      "type": "string",
      "maxLength": 500,
      "minLength": 1
     },
     "title": "Benefits",
     "maxItems": 20
    },
    "category": {
     "type": "string",
     "title": "Category",
     "maxLength": 150,
     "minLength": 2
    },
    "features": {
     "type": "array",
     "items": {
      "type": "string",
      "maxLength": 500,
      "minLength": 1
     },
     "title": "Features",
     "maxItems": 20,
     "minItems": 1
    },
    "keywords": {
     "type": "array",
     "items": {
      "type": "string",
      "maxLength": 100,
      "minLength": 1
     },
     "title": "Keywords",
     "maxItems": 50
    },
    "materials": {
     "type": "array",
     "items": {
      "type": "string",
      "maxLength": 100,
      "minLength": 1
     },
     "title": "Materials",
     "maxItems": 20
    },
    "price_usd": {
     "anyOf": [
      {
       "type": "number",
       "maximum": 1000000,
       "exclusiveMinimum": 0
      },
      {
       "type": "null"
      }
     ],
     "title": "Price Usd",
     "default": null
    },
    "dimensions": {
     "anyOf": [
      {
       "type": "string",
       "maxLength": 200
      },
      {
       "type": "null"
      }
     ],
     "title": "Dimensions",
     "default": null
    },
    "marketplace":
… (truncated)
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "job_id": "example",
  "status": "queued"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/friday-seller-tools-listing-audit-827c456b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from friday-seller-tools-production.up.railway.app](https://www.zero.xyz/host/friday-seller-tools-production.up.railway.app/llms.txt)