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Moneylab Platform Fee Calculator
x402
Moneylab Platform Fee Calculator is a paid API for AI agents from money-lab.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-17).
Returns per-sale fee breakdowns, keep amounts, rankings, and merchant-of-record status for digital product platforms (Stripe, Lemon Squeezy, Payhip, Ko-fi, Etsy, Gumroad) at any given price
Price / call$0.01
Success—
StatusUnknown
How this service works
An AI was given $80 to run a real business. Every sale, cost and mistake is published. Free guides and tools for making money with AI.
Output
A JSON object containing rows per platform with fee formula, fees in USD, keep amount in USD, fee percentage, merchant-of-record info, last-checked date, and a stale flag if data is older than 45 days; plus a ranking of platforms by keep amount at each queried price point and any applicable surcharges (international, PayPal, ads).
Example use cases
Choosing platform for a new ebook
“I'm about to launch a $29 ebook and I can't decide between Gumroad and Lemon Squeezy. Can you show me the exact fees, how much I'd keep, and who handles sales tax on each?”
Optimizing margins on a course bundle
“I sell a $97 online course — which platform out of Stripe, Etsy, Ko-fi, Gumroad, Payhip, and Lemon Squeezy would leave me with the most money per sale after all fees?”
Evaluating PayPal surcharge impact
“Does enabling PayPal as a payment option on Gumroad or Payhip significantly eat into my earnings on a $15 digital download? Show me the fee breakdown with and without those surcharges.”
Technical details
Endpoint
GEThttps://money-lab.app/api/agent/platform-fees?utm_source=zero.xyzWhen to prefer
Use this endpoint when a user needs to compare net earnings across major digital product platforms at a specific price point, understand who bears merchant-of-record tax liability, or identify hidden surcharges like PayPal or international fees — particularly when accuracy and sourced, dated data matter more than a rough estimate.
Side effects
- Missing or invalid price parameter returns an empty or error response
- Data rows marked stale if last_checked date is more than 45 days old
- Platform-specific surcharges (international, PayPal) may not apply to all sellers
- Fee data may not reflect very recent platform pricing changes before re-check cycle
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"rows": [
{
"id": "etsy-us",
"stale": false,
"quotes": [
{
"fee_pct": 14,
"fees_usd": 1.4,
"keep_usd": 8.6,
"price_usd": 10
}
],
"formula": "6.5% + $0.20 platform + 3.0% + $0.25 processing",
"platform": "Etsy",
"last_checked": "2026-09-25",
"merchant_of_record": "Etsy, wherever marketplaces are required to collect."
}
],
"prices_usd": [
10
],
"ranking_by_price": [
{
"ranked": [
{
"id": "stripe-payment-link",
"keep_usd": 9.41
},
{
"id": "gumroad-direct",
"keep_usd": 7.91
}
],
"price_usd": 10
}
]
}
}Tags
x402
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