# Friday Seller Tools – HTML Product Description Generator

> Friday Seller Tools – HTML Product Description Generator is a paid API for AI agents from friday-seller-tools-production.up.railway.app, paid per call via x402, $0.25/call, status unknown (last checked 2026-09-14).

Generates an HTML-formatted product description for Amazon, Walmart, Shopify, or eBay listings from product details.

## Facts

- Endpoint: POST https://friday-seller-tools-production.up.railway.app/v1/listings/description-html
- Price: $0.25/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/friday-seller-tools-html-product-description-generator-165c9f74
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_VRm4o_iKXeVgTQXZiDOqG

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-html-product-description-generator-165c9f74 -d '<json body>'
```

Example prompt: Write me an HTML product description for my Amazon listing — it's a stainless steel insulated water bottle called 'HydroMax Pro', keeps drinks cold for 24 hours, comes in 4 colors, and I want it optimized for keywords like 'insulated water bottle' and 'BPA-free'.

## When to prefer this

Choose this endpoint when you need a marketplace-ready, HTML-formatted product description for Amazon, Walmart, Shopify, or eBay at low cost ($0.25 per call) without building your own copywriting pipeline. Prefer it over generic LLM prompting when you want structured, upload-ready HTML output tailored to ecommerce marketplace conventions rather than plain text copy.

## Known failure modes

- Missing required product details returns a validation error
- Unsupported marketplace identifier causes a bad request response
- Job ID not found when polling for results if ID is invalid
- Service timeout if the generation queue is backed up
- Malformed HTML output if product input data contains special characters not properly escaped

## 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 queued status immediately; the completed response contains an HTML-formatted product description ready for upload or copy-paste into the target marketplace's listing editor.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "description": {
   "type": "string",
   "title": "Description",
   "maxLength": 15000,
   "minLength": 20
  },
  "marketplace": {
   "enum": [
    "amazon_us",
    "walmart_us",
    "shopify",
    "ebay_us"
   ],
   "type": "string",
   "title": "Marketplace",
   "default": "amazon_us"
  },
  "feature_highlights": {
   "type": "array",
   "items": {
    "type": "string",
    "maxLength": 500,
    "minLength": 2
   },
   "title": "Feature Highlights",
   "maxItems": 10
  }
 }
}
```

## 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-html-product-description-generator-165c9f74/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)