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ASIN402 FBA Profit Calculator
x402
ASIN402 FBA Profit Calculator is a paid API for AI agents from asin402.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-31).
Calculates Amazon FBA profitability for a given ASIN and unit cost, returning referral fee, FBA fulfillment fee, net profit, margin, ROI, break-even cost, and max landed cost for 30% ROI using the live buy box price.
Price / call$0.05
Success—
StatusUnknown
How this service works
Amazon FBA profit calculator by ASIN. Should I sell this on Amazon FBA? Give an ASIN and your unit cost: returns referral fee, FBA fulfillment fee, net profit, margin, ROI, break-even cost and the maximum landed cost for a 30% ROI (the number to negotiate with suppliers). Uses the live buy box price. For Amazon sellers, wholesale and online arbitrage. Free sample: /api/sample/fba-profit
Output
A JSON object with the ASIN, product title, marketplace, currency, sell price (live buy box), referral fee and referral fee percentage, FBA fulfillment fee, net profit, margin percentage, ROI percentage, break-even landed cost, maximum landed cost for 30% ROI, whether Amazon itself is the seller, the FBA fee data source, and a timestamp of when the data was fetched. Excludes storage fees, inbound placement fees, returns, and taxes.
Example use cases
Online arbitrage deal evaluation
“I found a book for $4 per unit with ASIN 0735211299 — can you tell me the FBA fees, net profit, margin, and ROI if I sell it on Amazon US, and what's the max I can pay to still make 30% ROI?”
Wholesale supplier price negotiation
“I'm negotiating with a supplier on ASIN B08N5WRWNW. What's the maximum landed cost I can pay per unit to achieve a 30% ROI selling on Amazon FBA in the US marketplace?”
UK marketplace profitability check
“Is ASIN B07FZ8S74R worth selling on Amazon FBA in the UK? My unit cost is £8 including inbound shipping of £1 — what's the margin and ROI?”
Technical details
Endpoint
GEThttps://asin402.com/api/fba-profit?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need fast, per-unit FBA economics for a specific ASIN — especially for online arbitrage, retail arbitrage, or wholesale sourcing decisions. It is ideal when you need the live buy box price automatically, want a supplier negotiation target (max landed cost for 30% ROI), or need break-even analysis. Prefer this over generic Amazon product data APIs when profit and FBA fee calculation is the primary goal.
Side effects
- Invalid or non-existent ASIN returns an error
- ASIN not listed in the specified marketplace returns no data
- No active buy box (no current seller) may result in missing sell price
- Rate limiting or payment failure for the $0.05 per call fee
- Marketplace code not recognized returns validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"asin": "0735211299",
"note": "Excludes storage fees, inbound placement fees, returns and taxes.",
"title": "Atomic Habits: An Easy & Proven Way to Build Good Habits & Break Bad Ones",
"roi_pct": 204.2,
"currency": "USD",
"data_as_of": "2026-10-26T18:40:00.000Z",
"margin_pct": 43.3,
"net_profit": 10.82,
"sell_price": 24.99,
"landed_cost": 5.3,
"marketplace": "us",
"referral_fee": 3.75,
"fba_fee_source": "marketplace_data",
"amazon_is_seller": false,
"referral_fee_pct": 15,
"fba_fulfillment_fee": 5.12,
"break_even_landed_cost": 16.12,
"max_landed_cost_for_30pct_roi": 12.4
}
}Tags
x402
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