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Friday Seller Tools – Shipping Template Cost Estimate
x402
Friday Seller Tools – Shipping Template Cost Estimate 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 2026-09-15).
Generates an instant cost estimate for a shipping template used in marketplace listings on Amazon, Walmart, Shopify, or eBay.
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 status (e.g. 'queued'), indicating the cost estimate request has been accepted and is being processed. The agent should poll or await the job result to retrieve the computed shipping template cost estimate.
Example use cases
Amazon listing shipping cost planning
“I'm about to create a new shipping template for a 3 lb product on Amazon and want to know the estimated cost before I commit — can you run a shipping template cost estimate for me?”
Walmart marketplace upload prep
“Before I upload my product to Walmart marketplace, can you estimate what shipping template costs will look like for a lightweight 0.5 lb item shipping standard ground across the US?”
Multi-platform shipping cost comparison
“I'm deciding between listing my 5 lb product on eBay vs Shopify and need to estimate shipping template costs for both — can you calculate what the shipping template fees would look like for each platform?”
Technical details
Endpoint
POSThttps://friday-seller-tools-production.up.railway.app/v1/shipping/template-cost-estimateWhen to prefer
Use this endpoint when an Amazon, Walmart, Shopify, or eBay seller needs a quick, low-cost ($0.25) estimate of shipping template costs before creating or uploading a product listing. Prefer this over manual carrier rate lookups when the goal is marketplace-specific shipping template pricing rather than live carrier quotes.
Side effects
- Missing required shipping parameters returns a 400 error
- Invalid marketplace platform identifier causes validation failure
- Oversized or out-of-range weight/dimension inputs may be rejected
- Payment not included or insufficient USDC triggers x402 payment required response
- Service downtime on Railway hosting returns 5xx errors
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| zones | array | |
| marketplace | string | |
| template_name | string | |
| actual_weight_lb | number | |
| dimensional_weight_lb | — | |
| expected_monthly_orders | integer | |
| round_billable_weight_up | boolean | |
| packaging_cost_per_order_usd | number | |
| marketplace_fee_percent_on_shipping | number |
Output
Schema · Response
{
"type": "json",
"example": {
"job_id": "example",
"status": "queued"
}
}Tags
x402
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