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Friday Seller Tools – Cross-Listing Field Map
x402
Friday Seller Tools – Cross-Listing Field Map 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 a cross-platform field mapping that translates product listing attributes across Amazon, Walmart, Shopify, and eBay for upload-ready preparation.
Price / call$0.25
Success—
StatusUnknown
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 resolved payload contains a structured field mapping object showing how attributes from the source marketplace translate to equivalent fields on each target marketplace, including required field names, character limits, formatting notes, and any platform-specific requirements for upload preparation.
Example use cases
Amazon to Walmart cross-listing prep
“I have an Amazon listing for a Bluetooth speaker with title, bullet points, and backend keywords — give me the field map so I can upload it to Walmart correctly.”
Shopify to eBay attribute translation
“I'm exporting my Shopify product catalog to eBay and need to know which Shopify fields map to which eBay listing fields so my uploads don't get rejected.”
Multi-marketplace launch preparation
“I'm launching a new product and want to list it on Amazon, Walmart, and Shopify simultaneously — can you give me a cross-listing field map so I can prepare all three uploads at once?”
Technical details
Endpoint
POSThttps://friday-seller-tools-production.up.railway.app/v1/catalog/cross-listing-field-mapWhen to prefer
Choose this endpoint when you need to translate or normalize product listing attributes across two or more of Amazon, Walmart, Shopify, and eBay, especially when preparing bulk uploads or launching a product simultaneously on multiple platforms. It is purpose-built for ecommerce sellers who need instant, low-cost cross-listing field guidance without manually researching each marketplace's schema.
Side effects
- Unsupported marketplace combination returns a 400 error
- Missing required source or target marketplace parameter causes validation failure
- Unrecognized product category may result in incomplete or generic field mapping
- Service unavailability on Railway hosting returns 503
- Job may remain in queued state if backend processing is delayed
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| fields | array | |
| category_context | — | |
| source_marketplace | string | |
| target_marketplaces | array |
Output
Schema · Response
{
"type": "json",
"example": {
"job_id": "example",
"status": "queued"
}
}Tags
x402
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