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Strale Marketplace Fee Calculator
x402
Strale Marketplace Fee Calculator is a paid API for AI agents from api.strale.io, paid per call via x402, $0.054001/call, status unknown (last checked 2026-09-14).
Calculates seller fees and net revenue breakdown for Amazon, eBay, Etsy, and Shopify given a sale price and optional product category.
Price / call$0.054001
Success—
StatusUnknown
How this service works
Calculate seller fees for Amazon, eBay, Etsy, Shopify. Returns total fees, net revenue, fee breakdown.
Output
Returns total marketplace fees charged, net revenue the seller receives, and a detailed fee breakdown for the specified marketplace and sale price combination.
Example use cases
Example prompt
“What are the Amazon seller fees on a $79.99 electronics item — break down the total fees and what I'd actually net?”
Technical details
Endpoint
GEThttps://api.strale.io/x402/marketplace-fee-calculateWhen to prefer
Use this endpoint when you need fast, structured fee calculations for one of the four supported marketplaces (Amazon, eBay, Etsy, Shopify) and want a breakdown of net revenue vs fees. Prefer this over manual calculation or scraping marketplace help pages for consistent, programmatic results.
Side effects
- Missing required 'marketplace' or 'sale_price' query parameters returns 400 error
- Invalid marketplace value (not amazon/ebay/etsy/shopify) returns error or unexpected result
- Negative or zero sale_price may return error
- Payment not included results in 402 Payment Required
Input
{
"category": "electronics",
"sale_price": 79.99,
"marketplace": "amazon"
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Output
{
"fees": {
"other_fees": null,
"closing_fee": null,
"listing_fee": null,
"referral_fee": 6.4,
"transaction_fee": null,
"payment_processing_fee": null
},
"_meta": {
"payment": {
"method": "x402",
"price_usd": 0.054000000000000006,
"settlement_id": "0x408384694fc44601a2eed66b866e6632774ad0bf64afc271f54f9041ee33daac"
},
"capability": "marketplace-fee-calculate",
"latency_ms": 1,
"provenance": {
"source": "algorithmic",
"fetched_at": "2026-06-16T01:24:40.816Z"
}
},
"category": "electronics",
"currency": "USD",
"sale_price": 79.99,
"total_fees": 6.4,
"fee_percent": 8,
"marketplace": "amazon",
"net_revenue": 73.59,
"breakdown_notes": [
"Referral fee: 8.0% of sale price",
"Professional seller plan ($39.99/month not included in per-item calculation)",
"FBA fulfillment fees not included (varies by size/weight)"
]
}Tags
x402
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